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12618416 | 1 | /** @file\r |
55a64ae0 | 2 | Miscellaneous routines for iSCSI driver.\r |
6a690e23 | 3 | \r |
894d038a | 4 | Copyright (c) 2004 - 2009, Intel Corporation.<BR>\r |
7a444476 | 5 | All rights reserved. This program and the accompanying materials\r |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
6a690e23 | 12 | \r |
12618416 | 13 | **/\r |
6a690e23 | 14 | \r |
15 | #include "IScsiImpl.h"\r | |
16 | \r | |
ac7e320c | 17 | GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR8 IScsiHexString[] = "0123456789ABCDEFabcdef";\r |
6a690e23 | 18 | \r |
12618416 | 19 | /**\r |
20 | Removes (trims) specified leading and trailing characters from a string.\r | |
21 | \r | |
1055b68d | 22 | @param[in, out] Str Pointer to the null-terminated string to be trimmed. On return, \r |
963dbb30 | 23 | Str will hold the trimmed string. \r |
12618416 | 24 | \r |
1055b68d | 25 | @param[in] CharC Character will be trimmed from str.\r |
12618416 | 26 | **/\r |
6a690e23 | 27 | VOID\r |
28 | StrTrim (\r | |
1055b68d | 29 | IN OUT CHAR16 *Str,\r |
6a690e23 | 30 | IN CHAR16 CharC\r |
31 | )\r | |
6a690e23 | 32 | {\r |
1055b68d | 33 | CHAR16 *Pointer1;\r |
34 | CHAR16 *Pointer2;\r | |
6a690e23 | 35 | \r |
1055b68d | 36 | if (*Str == 0) {\r |
6a690e23 | 37 | return;\r |
38 | }\r | |
39 | \r | |
40 | //\r | |
41 | // Trim off the leading and trailing characters c\r | |
42 | //\r | |
1055b68d | 43 | for (Pointer1 = Str; (*Pointer1 != 0) && (*Pointer1 == CharC); Pointer1++) {\r |
6a690e23 | 44 | ;\r |
45 | }\r | |
46 | \r | |
1055b68d | 47 | Pointer2 = Str;\r |
48 | if (Pointer2 == Pointer1) {\r | |
49 | while (*Pointer1 != 0) {\r | |
50 | Pointer2++;\r | |
51 | Pointer1++;\r | |
6a690e23 | 52 | }\r |
53 | } else {\r | |
1055b68d | 54 | while (*Pointer1 != 0) { \r |
55 | *Pointer2 = *Pointer1; \r | |
56 | Pointer1++;\r | |
57 | Pointer2++;\r | |
6a690e23 | 58 | }\r |
1055b68d | 59 | *Pointer2 = 0;\r |
6a690e23 | 60 | }\r |
61 | \r | |
62 | \r | |
1055b68d | 63 | for (Pointer1 = Str + StrLen(Str) - 1; Pointer1 >= Str && *Pointer1 == CharC; Pointer1--) {\r |
6a690e23 | 64 | ;\r |
65 | }\r | |
1055b68d | 66 | if (Pointer1 != Str + StrLen(Str) - 1) { \r |
67 | *(Pointer1 + 1) = 0;\r | |
6a690e23 | 68 | }\r |
69 | }\r | |
70 | \r | |
12618416 | 71 | /**\r |
6a690e23 | 72 | Calculate the prefix length of the IPv4 subnet mask.\r |
73 | \r | |
1055b68d | 74 | @param[in] SubnetMask The IPv4 subnet mask.\r |
6a690e23 | 75 | \r |
1055b68d | 76 | @return The prefix length of the subnet mask.\r |
963dbb30 | 77 | @retval 0 Other errors as indicated.\r |
12618416 | 78 | **/\r |
79 | UINT8\r | |
80 | IScsiGetSubnetMaskPrefixLength (\r | |
81 | IN EFI_IPv4_ADDRESS *SubnetMask\r | |
82 | )\r | |
6a690e23 | 83 | {\r |
84 | UINT8 Len;\r | |
85 | UINT32 ReverseMask;\r | |
86 | \r | |
87 | //\r | |
88 | // The SubnetMask is in network byte order.\r | |
89 | //\r | |
90 | ReverseMask = (SubnetMask->Addr[0] << 24) | (SubnetMask->Addr[1] << 16) | (SubnetMask->Addr[2] << 8) | (SubnetMask->Addr[3]);\r | |
91 | \r | |
92 | //\r | |
93 | // Reverse it.\r | |
94 | //\r | |
95 | ReverseMask = ~ReverseMask;\r | |
96 | \r | |
d5893e0b | 97 | if ((ReverseMask & (ReverseMask + 1)) != 0) {\r |
6a690e23 | 98 | return 0;\r |
99 | }\r | |
100 | \r | |
101 | Len = 0;\r | |
102 | \r | |
103 | while (ReverseMask != 0) {\r | |
104 | ReverseMask = ReverseMask >> 1;\r | |
105 | Len++;\r | |
106 | }\r | |
107 | \r | |
69b0882d | 108 | return (UINT8) (32 - Len);\r |
6a690e23 | 109 | }\r |
110 | \r | |
12618416 | 111 | /**\r |
6a690e23 | 112 | Convert the hexadecimal encoded LUN string into the 64-bit LUN. \r |
113 | \r | |
1055b68d | 114 | @param[in] Str The hexadecimal encoded LUN string.\r |
115 | @param[out] Lun Storage to return the 64-bit LUN.\r | |
6a690e23 | 116 | \r |
12618416 | 117 | @retval EFI_SUCCESS The 64-bit LUN is stored in Lun.\r |
12618416 | 118 | @retval EFI_INVALID_PARAMETER The string is malformatted.\r |
12618416 | 119 | **/\r |
120 | EFI_STATUS\r | |
121 | IScsiAsciiStrToLun (\r | |
122 | IN CHAR8 *Str,\r | |
123 | OUT UINT8 *Lun\r | |
124 | )\r | |
6a690e23 | 125 | {\r |
63d55bb9 LG |
126 | UINTN Index, IndexValue, IndexNum, SizeStr;\r |
127 | CHAR8 TemStr[2];\r | |
128 | UINT8 TemValue;\r | |
129 | UINT16 Value [4];\r | |
130 | \r | |
e48e37fc | 131 | ZeroMem (Lun, 8);\r |
63d55bb9 LG |
132 | ZeroMem (TemStr, 2);\r |
133 | ZeroMem ((UINT8 *) Value, sizeof (Value));\r | |
134 | SizeStr = AsciiStrLen (Str); \r | |
135 | IndexValue = 0;\r | |
136 | IndexNum = 0;\r | |
137 | \r | |
138 | for (Index = 0; Index < SizeStr; Index ++) {\r | |
139 | TemStr[0] = Str[Index];\r | |
140 | TemValue = (UINT8) AsciiStrHexToUint64 (TemStr);\r | |
141 | if (TemValue == 0 && TemStr[0] != '0') {\r | |
142 | if ((TemStr[0] != '-') || (IndexNum == 0)) {\r | |
143 | //\r | |
144 | // Invalid Lun Char\r | |
145 | //\r | |
146 | return EFI_INVALID_PARAMETER;\r | |
6a690e23 | 147 | }\r |
6a690e23 | 148 | }\r |
63d55bb9 LG |
149 | \r |
150 | if ((TemValue == 0) && (TemStr[0] == '-')) {\r | |
151 | //\r | |
152 | // Next Lun value\r | |
153 | //\r | |
154 | if (++IndexValue >= 4) {\r | |
155 | //\r | |
156 | // Max 4 Lun value\r | |
157 | //\r | |
158 | return EFI_INVALID_PARAMETER;\r | |
159 | }\r | |
160 | //\r | |
161 | // Restart str index for the next lun value\r | |
162 | //\r | |
163 | IndexNum = 0;\r | |
164 | continue;\r | |
165 | }\r | |
166 | \r | |
167 | if (++IndexNum > 4) {\r | |
168 | // \r | |
169 | // Each Lun Str can't exceed size 4, because it will be as UINT16 value\r | |
170 | //\r | |
6a690e23 | 171 | return EFI_INVALID_PARAMETER;\r |
172 | }\r | |
63d55bb9 LG |
173 | \r |
174 | //\r | |
175 | // Combine UINT16 value\r | |
176 | //\r | |
177 | Value[IndexValue] = (UINT16) ((Value[IndexValue] << 4) + TemValue);\r | |
6a690e23 | 178 | }\r |
63d55bb9 LG |
179 | \r |
180 | for (Index = 0; Index <= IndexValue; Index ++) {\r | |
181 | *((UINT16 *) &Lun[Index * 2]) = HTONS (Value[Index]);\r | |
182 | }\r | |
183 | \r | |
6a690e23 | 184 | return EFI_SUCCESS;\r |
185 | }\r | |
186 | \r | |
12618416 | 187 | /**\r |
6a690e23 | 188 | Convert the 64-bit LUN into the hexadecimal encoded LUN string.\r |
189 | \r | |
1055b68d | 190 | @param[in] Lun The 64-bit LUN.\r |
191 | @param[out] Str The storage to return the hexadecimal encoded LUN string.\r | |
12618416 | 192 | **/\r |
193 | VOID\r | |
194 | IScsiLunToUnicodeStr (\r | |
195 | IN UINT8 *Lun,\r | |
196 | OUT CHAR16 *Str\r | |
197 | )\r | |
6a690e23 | 198 | {\r |
199 | UINTN Index;\r | |
200 | CHAR16 *TempStr;\r | |
201 | \r | |
202 | TempStr = Str;\r | |
203 | \r | |
204 | for (Index = 0; Index < 4; Index++) {\r | |
205 | \r | |
206 | if ((Lun[2 * Index] | Lun[2 * Index + 1]) == 0) {\r | |
207 | StrCpy (TempStr, L"0-");\r | |
208 | } else {\r | |
209 | TempStr[0] = (CHAR16) IScsiHexString[Lun[2 * Index] >> 4];\r | |
ac7e320c | 210 | TempStr[1] = (CHAR16) IScsiHexString[Lun[2 * Index] & 0x0F];\r |
6a690e23 | 211 | TempStr[2] = (CHAR16) IScsiHexString[Lun[2 * Index + 1] >> 4];\r |
ac7e320c | 212 | TempStr[3] = (CHAR16) IScsiHexString[Lun[2 * Index + 1] & 0x0F];\r |
6a690e23 | 213 | TempStr[4] = L'-';\r |
214 | TempStr[5] = 0;\r | |
215 | \r | |
216 | StrTrim (TempStr, L'0');\r | |
217 | }\r | |
218 | \r | |
219 | TempStr += StrLen (TempStr);\r | |
220 | }\r | |
221 | \r | |
222 | Str[StrLen (Str) - 1] = 0;\r | |
223 | \r | |
224 | for (Index = StrLen (Str) - 1; Index > 1; Index = Index - 2) {\r | |
225 | if ((Str[Index] == L'0') && (Str[Index - 1] == L'-')) {\r | |
226 | Str[Index - 1] = 0;\r | |
227 | } else {\r | |
228 | break;\r | |
229 | }\r | |
230 | }\r | |
231 | }\r | |
232 | \r | |
12618416 | 233 | /**\r |
6a690e23 | 234 | Convert the ASCII string into a UNICODE string.\r |
235 | \r | |
1055b68d | 236 | @param[in] Source The ASCII string.\r |
237 | @param[out] Destination The storage to return the UNICODE string.\r | |
6a690e23 | 238 | \r |
1055b68d | 239 | @return CHAR16 * Pointer to the UNICODE string.\r |
12618416 | 240 | **/\r |
241 | CHAR16 *\r | |
242 | IScsiAsciiStrToUnicodeStr (\r | |
243 | IN CHAR8 *Source,\r | |
244 | OUT CHAR16 *Destination\r | |
245 | )\r | |
6a690e23 | 246 | {\r |
247 | ASSERT (Destination != NULL);\r | |
248 | ASSERT (Source != NULL);\r | |
249 | \r | |
250 | while (*Source != '\0') {\r | |
251 | *(Destination++) = (CHAR16) *(Source++);\r | |
252 | }\r | |
253 | \r | |
254 | *Destination = '\0';\r | |
255 | \r | |
256 | return Destination;\r | |
257 | }\r | |
258 | \r | |
12618416 | 259 | /**\r |
6a690e23 | 260 | Convert the UNICODE string into an ASCII string.\r |
261 | \r | |
1055b68d | 262 | @param[in] Source The UNICODE string.\r |
263 | @param[out] Destination The storage to return the ASCII string.\r | |
6a690e23 | 264 | \r |
1055b68d | 265 | @return CHAR8 * Pointer to the ASCII string.\r |
266 | **/\r | |
12618416 | 267 | CHAR8 *\r |
268 | IScsiUnicodeStrToAsciiStr (\r | |
269 | IN CHAR16 *Source,\r | |
270 | OUT CHAR8 *Destination\r | |
271 | )\r | |
6a690e23 | 272 | {\r |
273 | ASSERT (Destination != NULL);\r | |
274 | ASSERT (Source != NULL);\r | |
275 | \r | |
276 | while (*Source != '\0') {\r | |
277 | //\r | |
278 | // If any Unicode characters in Source contain\r | |
279 | // non-zero value in the upper 8 bits, then ASSERT().\r | |
280 | //\r | |
281 | ASSERT (*Source < 0x100);\r | |
282 | *(Destination++) = (CHAR8) *(Source++);\r | |
283 | }\r | |
284 | \r | |
285 | *Destination = '\0';\r | |
286 | \r | |
287 | return Destination;\r | |
288 | }\r | |
289 | \r | |
12618416 | 290 | /**\r |
6a690e23 | 291 | Convert the decimal dotted IPv4 address into the binary IPv4 address.\r |
292 | \r | |
1055b68d | 293 | @param[in] Str The UNICODE string.\r |
294 | @param[out] Ip The storage to return the ASCII string.\r | |
6a690e23 | 295 | \r |
12618416 | 296 | @retval EFI_SUCCESS The binary IP address is returned in Ip.\r |
12618416 | 297 | @retval EFI_INVALID_PARAMETER The IP string is malformatted.\r |
12618416 | 298 | **/\r |
299 | EFI_STATUS\r | |
300 | IScsiAsciiStrToIp (\r | |
301 | IN CHAR8 *Str,\r | |
302 | OUT EFI_IPv4_ADDRESS *Ip\r | |
303 | )\r | |
6a690e23 | 304 | {\r |
305 | UINTN Index;\r | |
306 | UINTN Number;\r | |
307 | \r | |
308 | Index = 0;\r | |
309 | \r | |
c5de0d55 | 310 | while (*Str != 0) {\r |
6a690e23 | 311 | \r |
312 | if (Index > 3) {\r | |
313 | return EFI_INVALID_PARAMETER;\r | |
314 | }\r | |
315 | \r | |
316 | Number = 0;\r | |
317 | while (NET_IS_DIGIT (*Str)) {\r | |
318 | Number = Number * 10 + (*Str - '0');\r | |
319 | Str++;\r | |
320 | }\r | |
321 | \r | |
322 | if (Number > 0xFF) {\r | |
323 | return EFI_INVALID_PARAMETER;\r | |
324 | }\r | |
325 | \r | |
326 | Ip->Addr[Index] = (UINT8) Number;\r | |
327 | \r | |
328 | if ((*Str != '\0') && (*Str != '.')) {\r | |
329 | //\r | |
330 | // The current character should be either the NULL terminator or\r | |
331 | // the dot delimiter.\r | |
332 | //\r | |
333 | return EFI_INVALID_PARAMETER;\r | |
334 | }\r | |
335 | \r | |
336 | if (*Str == '.') {\r | |
337 | //\r | |
338 | // Skip the delimiter.\r | |
339 | //\r | |
340 | Str++;\r | |
341 | }\r | |
342 | \r | |
343 | Index++;\r | |
344 | }\r | |
345 | \r | |
346 | if (Index != 4) {\r | |
347 | return EFI_INVALID_PARAMETER;\r | |
348 | }\r | |
349 | \r | |
350 | return EFI_SUCCESS;\r | |
351 | }\r | |
352 | \r | |
12618416 | 353 | /**\r |
6a690e23 | 354 | Convert the mac address into a hexadecimal encoded "-" seperated string.\r |
355 | \r | |
1055b68d | 356 | @param[in] Mac The mac address.\r |
357 | @param[in] Len Length in bytes of the mac address.\r | |
358 | @param[out] Str The storage to return the mac string.\r | |
12618416 | 359 | **/\r |
360 | VOID\r | |
361 | IScsiMacAddrToStr (\r | |
362 | IN EFI_MAC_ADDRESS *Mac,\r | |
363 | IN UINT32 Len,\r | |
364 | OUT CHAR16 *Str\r | |
365 | )\r | |
6a690e23 | 366 | {\r |
367 | UINT32 Index;\r | |
368 | \r | |
369 | for (Index = 0; Index < Len; Index++) {\r | |
ac7e320c LG |
370 | Str[3 * Index] = (CHAR16) IScsiHexString[(Mac->Addr[Index] >> 4) & 0x0F];\r |
371 | Str[3 * Index + 1] = (CHAR16) IScsiHexString[Mac->Addr[Index] & 0x0F];\r | |
6a690e23 | 372 | Str[3 * Index + 2] = L'-';\r |
373 | }\r | |
374 | \r | |
375 | Str[3 * Index - 1] = L'\0';\r | |
376 | }\r | |
377 | \r | |
12618416 | 378 | /**\r |
379 | Convert the binary encoded buffer into a hexadecimal encoded string.\r | |
6a690e23 | 380 | \r |
1055b68d | 381 | @param[in] BinBuffer The buffer containing the binary data.\r |
382 | @param[in] BinLength Length of the binary buffer.\r | |
383 | @param[in, out] HexStr Pointer to the string.\r | |
384 | @param[in, out] HexLength The length of the string.\r | |
6a690e23 | 385 | \r |
12618416 | 386 | @retval EFI_SUCCESS The binary data is converted to the hexadecimal string \r |
387 | and the length of the string is updated.\r | |
12618416 | 388 | @retval EFI_BUFFER_TOO_SMALL The string is too small.\r |
1055b68d | 389 | @retval EFI_INVALID_PARAMETER The IP string is malformatted.\r |
12618416 | 390 | **/\r |
391 | EFI_STATUS\r | |
392 | IScsiBinToHex (\r | |
393 | IN UINT8 *BinBuffer,\r | |
394 | IN UINT32 BinLength,\r | |
395 | IN OUT CHAR8 *HexStr,\r | |
396 | IN OUT UINT32 *HexLength\r | |
397 | )\r | |
6a690e23 | 398 | {\r |
399 | UINTN Index;\r | |
400 | \r | |
401 | if ((HexStr == NULL) || (BinBuffer == NULL) || (BinLength == 0)) {\r | |
402 | return EFI_INVALID_PARAMETER;\r | |
403 | }\r | |
404 | \r | |
405 | if (((*HexLength) - 3) < BinLength * 2) {\r | |
406 | *HexLength = BinLength * 2 + 3;\r | |
407 | return EFI_BUFFER_TOO_SMALL;\r | |
408 | }\r | |
409 | \r | |
410 | *HexLength = BinLength * 2 + 3;\r | |
411 | //\r | |
412 | // Prefix for Hex String\r | |
413 | //\r | |
414 | HexStr[0] = '0';\r | |
415 | HexStr[1] = 'x';\r | |
416 | \r | |
417 | for (Index = 0; Index < BinLength; Index++) {\r | |
418 | HexStr[Index * 2 + 2] = IScsiHexString[BinBuffer[Index] >> 4];\r | |
ac7e320c | 419 | HexStr[Index * 2 + 3] = IScsiHexString[BinBuffer[Index] & 0x0F];\r |
6a690e23 | 420 | }\r |
421 | \r | |
422 | HexStr[Index * 2 + 2] = '\0';\r | |
423 | \r | |
424 | return EFI_SUCCESS;\r | |
425 | }\r | |
426 | \r | |
12618416 | 427 | /**\r |
6a690e23 | 428 | Convert the hexadecimal string into a binary encoded buffer.\r |
429 | \r | |
1055b68d | 430 | @param[in, out] BinBuffer The binary buffer.\r |
431 | @param[in, out] BinLength Length of the binary buffer.\r | |
432 | @param[in] HexStr The hexadecimal string.\r | |
6a690e23 | 433 | \r |
12618416 | 434 | @retval EFI_SUCCESS The hexadecimal string is converted into a binary\r |
435 | encoded buffer.\r | |
963dbb30 | 436 | @retval EFI_BUFFER_TOO_SMALL The binary buffer is too small to hold the converted data.\r |
12618416 | 437 | **/\r |
438 | EFI_STATUS\r | |
439 | IScsiHexToBin (\r | |
440 | IN OUT UINT8 *BinBuffer,\r | |
441 | IN OUT UINT32 *BinLength,\r | |
442 | IN CHAR8 *HexStr\r | |
443 | )\r | |
6a690e23 | 444 | {\r |
445 | UINTN Index;\r | |
63d55bb9 | 446 | UINTN Length;\r |
6a690e23 | 447 | UINT8 Digit;\r |
63d55bb9 LG |
448 | CHAR8 TemStr[2];\r |
449 | \r | |
450 | ZeroMem (TemStr, sizeof (TemStr));\r | |
7c3eaa27 | 451 | \r |
6a690e23 | 452 | //\r |
453 | // Find out how many hex characters the string has.\r | |
454 | //\r | |
63d55bb9 LG |
455 | if ((HexStr[0] == '0') && ((HexStr[1] == 'x') || (HexStr[1] == 'X'))) {\r |
456 | HexStr += 2;\r | |
6a690e23 | 457 | }\r |
63d55bb9 LG |
458 | \r |
459 | Length = AsciiStrLen (HexStr);\r | |
6a690e23 | 460 | \r |
63d55bb9 LG |
461 | for (Index = 0; Index < Length; Index ++) {\r |
462 | TemStr[0] = HexStr[Index];\r | |
463 | Digit = (UINT8) AsciiStrHexToUint64 (TemStr);\r | |
464 | if (Digit == 0 && TemStr[0] != '0') {\r | |
465 | //\r | |
466 | // Invalid Lun Char\r | |
467 | //\r | |
468 | break;\r | |
469 | }\r | |
6a690e23 | 470 | if ((Index & 1) == 0) {\r |
63d55bb9 | 471 | BinBuffer [Index/2] = Digit;\r |
6a690e23 | 472 | } else {\r |
63d55bb9 | 473 | BinBuffer [Index/2] = (UINT8) ((BinBuffer [Index/2] << 4) + Digit);\r |
6a690e23 | 474 | }\r |
6a690e23 | 475 | }\r |
63d55bb9 LG |
476 | \r |
477 | *BinLength = (UINT32) ((Index + 1)/2);\r | |
6a690e23 | 478 | \r |
479 | return EFI_SUCCESS;\r | |
480 | }\r | |
481 | \r | |
12618416 | 482 | /**\r |
6a690e23 | 483 | Generate random numbers.\r |
484 | \r | |
1055b68d | 485 | @param[in, out] Rand The buffer to contain random numbers.\r |
486 | @param[in] RandLength The length of the Rand buffer.\r | |
12618416 | 487 | **/\r |
488 | VOID\r | |
489 | IScsiGenRandom (\r | |
490 | IN OUT UINT8 *Rand,\r | |
491 | IN UINTN RandLength\r | |
492 | )\r | |
6a690e23 | 493 | {\r |
494 | UINT32 Random;\r | |
495 | \r | |
496 | while (RandLength > 0) {\r | |
497 | Random = NET_RANDOM (NetRandomInitSeed ());\r | |
498 | *Rand++ = (UINT8) (Random);\r | |
499 | RandLength--;\r | |
500 | }\r | |
501 | }\r | |
502 | \r | |
12618416 | 503 | /**\r |
6a690e23 | 504 | Create the iSCSI driver data..\r |
505 | \r | |
1055b68d | 506 | @param[in] Image The handle of the driver image.\r |
507 | @param[in] Controller The handle of the controller.\r | |
6a690e23 | 508 | \r |
1055b68d | 509 | @return The iSCSI driver data created.\r |
963dbb30 | 510 | @retval NULL Other errors as indicated.\r |
12618416 | 511 | **/\r |
512 | ISCSI_DRIVER_DATA *\r | |
513 | IScsiCreateDriverData (\r | |
514 | IN EFI_HANDLE Image,\r | |
515 | IN EFI_HANDLE Controller\r | |
516 | )\r | |
6a690e23 | 517 | {\r |
518 | ISCSI_DRIVER_DATA *Private;\r | |
519 | EFI_STATUS Status;\r | |
520 | \r | |
e48e37fc | 521 | Private = AllocateZeroPool (sizeof (ISCSI_DRIVER_DATA));\r |
6a690e23 | 522 | if (Private == NULL) {\r |
523 | return NULL;\r | |
524 | }\r | |
525 | \r | |
526 | Private->Signature = ISCSI_DRIVER_DATA_SIGNATURE;\r | |
527 | Private->Image = Image;\r | |
528 | Private->Controller = Controller;\r | |
529 | \r | |
530 | //\r | |
531 | // Create an event to be signal when the BS to RT transition is triggerd so\r | |
532 | // as to abort the iSCSI session.\r | |
533 | //\r | |
01a5c994 | 534 | Status = gBS->CreateEventEx (\r |
535 | EVT_NOTIFY_SIGNAL,\r | |
6a690e23 | 536 | TPL_CALLBACK,\r |
537 | IScsiOnExitBootService,\r | |
538 | Private,\r | |
01a5c994 | 539 | &gEfiEventExitBootServicesGuid,\r |
6a690e23 | 540 | &Private->ExitBootServiceEvent\r |
541 | );\r | |
542 | if (EFI_ERROR (Status)) {\r | |
e48e37fc | 543 | gBS->FreePool (Private);\r |
6a690e23 | 544 | return NULL;\r |
545 | }\r | |
546 | \r | |
e48e37fc | 547 | CopyMem(&Private->IScsiExtScsiPassThru, &gIScsiExtScsiPassThruProtocolTemplate, sizeof(EFI_EXT_SCSI_PASS_THRU_PROTOCOL));\r |
6a690e23 | 548 | \r |
549 | //\r | |
550 | // 0 is designated to the TargetId, so use another value for the AdapterId.\r | |
551 | //\r | |
552 | Private->ExtScsiPassThruMode.AdapterId = 2;\r | |
553 | Private->ExtScsiPassThruMode.Attributes = EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL | EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL;\r | |
554 | Private->ExtScsiPassThruMode.IoAlign = 4;\r | |
555 | Private->IScsiExtScsiPassThru.Mode = &Private->ExtScsiPassThruMode;\r | |
556 | \r | |
557 | //\r | |
558 | // Install the Ext SCSI PASS THRU protocol.\r | |
559 | //\r | |
560 | Status = gBS->InstallProtocolInterface (\r | |
561 | &Private->ExtScsiPassThruHandle,\r | |
562 | &gEfiExtScsiPassThruProtocolGuid,\r | |
563 | EFI_NATIVE_INTERFACE,\r | |
564 | &Private->IScsiExtScsiPassThru\r | |
565 | );\r | |
566 | if (EFI_ERROR (Status)) {\r | |
567 | gBS->CloseEvent (Private->ExitBootServiceEvent);\r | |
e48e37fc | 568 | gBS->FreePool (Private);\r |
6a690e23 | 569 | \r |
570 | return NULL;\r | |
571 | }\r | |
572 | \r | |
573 | IScsiSessionInit (&Private->Session, FALSE);\r | |
574 | \r | |
575 | return Private;\r | |
576 | }\r | |
577 | \r | |
12618416 | 578 | /**\r |
6a690e23 | 579 | Clean the iSCSI driver data.\r |
580 | \r | |
1055b68d | 581 | @param[in] Private The iSCSI driver data.\r |
12618416 | 582 | **/\r |
583 | VOID\r | |
584 | IScsiCleanDriverData (\r | |
585 | IN ISCSI_DRIVER_DATA *Private\r | |
586 | )\r | |
6a690e23 | 587 | {\r |
588 | if (Private->DevicePath != NULL) {\r | |
589 | gBS->UninstallProtocolInterface (\r | |
590 | Private->ExtScsiPassThruHandle,\r | |
591 | &gEfiDevicePathProtocolGuid,\r | |
592 | Private->DevicePath\r | |
593 | );\r | |
594 | \r | |
e48e37fc | 595 | gBS->FreePool (Private->DevicePath);\r |
6a690e23 | 596 | }\r |
597 | \r | |
598 | if (Private->ExtScsiPassThruHandle != NULL) {\r | |
599 | gBS->UninstallProtocolInterface (\r | |
600 | Private->ExtScsiPassThruHandle,\r | |
601 | &gEfiExtScsiPassThruProtocolGuid,\r | |
602 | &Private->IScsiExtScsiPassThru\r | |
603 | );\r | |
604 | }\r | |
605 | \r | |
606 | gBS->CloseEvent (Private->ExitBootServiceEvent);\r | |
607 | \r | |
e48e37fc | 608 | gBS->FreePool (Private);\r |
6a690e23 | 609 | }\r |
610 | \r | |
12618416 | 611 | /**\r |
6a690e23 | 612 | Get the various configuration data of this iSCSI instance.\r |
613 | \r | |
1055b68d | 614 | @param[in] Private The iSCSI driver data.\r |
6a690e23 | 615 | \r |
12618416 | 616 | @retval EFI_SUCCESS The configuration of this instance is got.\r |
1055b68d | 617 | @retval EFI_ABORTED The operation was aborted.\r |
963dbb30 | 618 | @retval Others Other errors as indicated.\r |
12618416 | 619 | **/\r |
620 | EFI_STATUS\r | |
621 | IScsiGetConfigData (\r | |
622 | IN ISCSI_DRIVER_DATA *Private\r | |
623 | )\r | |
6a690e23 | 624 | {\r |
625 | EFI_STATUS Status;\r | |
626 | ISCSI_SESSION *Session;\r | |
627 | UINTN BufferSize;\r | |
628 | EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r | |
629 | EFI_SIMPLE_NETWORK_MODE *Mode;\r | |
630 | CHAR16 MacString[65];\r | |
631 | \r | |
632 | //\r | |
633 | // get the iSCSI Initiator Name\r | |
634 | //\r | |
635 | Session = &Private->Session;\r | |
636 | Session->InitiatorNameLength = ISCSI_NAME_MAX_SIZE;\r | |
637 | Status = gIScsiInitiatorName.Get (\r | |
638 | &gIScsiInitiatorName,\r | |
639 | &Session->InitiatorNameLength,\r | |
640 | Session->InitiatorName\r | |
641 | );\r | |
642 | if (EFI_ERROR (Status)) {\r | |
643 | return Status;\r | |
644 | }\r | |
645 | \r | |
646 | Status = gBS->HandleProtocol (\r | |
647 | Private->Controller,\r | |
648 | &gEfiSimpleNetworkProtocolGuid,\r | |
69b0882d | 649 | (VOID **)&Snp\r |
6a690e23 | 650 | );\r |
651 | if (EFI_ERROR (Status)) {\r | |
652 | return Status;\r | |
653 | }\r | |
654 | \r | |
655 | Mode = Snp->Mode;\r | |
656 | \r | |
657 | //\r | |
658 | // Get the mac string, it's the name of various variable\r | |
659 | //\r | |
660 | IScsiMacAddrToStr (&Mode->PermanentAddress, Mode->HwAddressSize, MacString);\r | |
661 | \r | |
662 | //\r | |
663 | // Get the normal configuration.\r | |
664 | //\r | |
665 | BufferSize = sizeof (Session->ConfigData.NvData);\r | |
666 | Status = gRT->GetVariable (\r | |
667 | MacString,\r | |
668 | &gEfiIScsiInitiatorNameProtocolGuid,\r | |
669 | NULL,\r | |
670 | &BufferSize,\r | |
671 | &Session->ConfigData.NvData\r | |
672 | );\r | |
673 | if (EFI_ERROR (Status)) {\r | |
674 | return Status;\r | |
675 | }\r | |
676 | \r | |
677 | if (!Session->ConfigData.NvData.Enabled) {\r | |
678 | return EFI_ABORTED;\r | |
679 | }\r | |
680 | //\r | |
681 | // Get the CHAP Auth information.\r | |
682 | //\r | |
683 | BufferSize = sizeof (Session->AuthData.AuthConfig);\r | |
684 | Status = gRT->GetVariable (\r | |
685 | MacString,\r | |
686 | &mIScsiCHAPAuthInfoGuid,\r | |
687 | NULL,\r | |
688 | &BufferSize,\r | |
689 | &Session->AuthData.AuthConfig\r | |
690 | );\r | |
691 | \r | |
692 | if (!EFI_ERROR (Status) && Session->ConfigData.NvData.InitiatorInfoFromDhcp) {\r | |
693 | //\r | |
694 | // Start dhcp.\r | |
695 | //\r | |
696 | Status = IScsiDoDhcp (Private->Image, Private->Controller, &Session->ConfigData);\r | |
697 | }\r | |
698 | \r | |
699 | return Status;\r | |
700 | }\r | |
701 | \r | |
12618416 | 702 | /**\r |
6a690e23 | 703 | Get the device path of the iSCSI tcp connection and update it.\r |
704 | \r | |
1055b68d | 705 | @param[in] Private The iSCSI driver data.\r |
6a690e23 | 706 | \r |
1055b68d | 707 | @return The updated device path.\r |
963dbb30 | 708 | @retval NULL Other errors as indicated.\r |
12618416 | 709 | **/\r |
710 | EFI_DEVICE_PATH_PROTOCOL *\r | |
711 | IScsiGetTcpConnDevicePath (\r | |
712 | IN ISCSI_DRIVER_DATA *Private\r | |
713 | )\r | |
6a690e23 | 714 | {\r |
715 | ISCSI_SESSION *Session;\r | |
716 | ISCSI_CONNECTION *Conn;\r | |
717 | TCP4_IO *Tcp4Io;\r | |
718 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
719 | EFI_STATUS Status;\r | |
720 | EFI_DEV_PATH *DPathNode;\r | |
721 | \r | |
722 | Session = &Private->Session;\r | |
723 | if (Session->State != SESSION_STATE_LOGGED_IN) {\r | |
724 | return NULL;\r | |
725 | }\r | |
726 | \r | |
727 | Conn = NET_LIST_USER_STRUCT_S (\r | |
728 | Session->Conns.ForwardLink,\r | |
729 | ISCSI_CONNECTION,\r | |
730 | Link,\r | |
731 | ISCSI_CONNECTION_SIGNATURE\r | |
732 | );\r | |
733 | Tcp4Io = &Conn->Tcp4Io;\r | |
734 | \r | |
735 | Status = gBS->HandleProtocol (\r | |
736 | Tcp4Io->Handle,\r | |
737 | &gEfiDevicePathProtocolGuid,\r | |
69b0882d | 738 | (VOID **)&DevicePath\r |
6a690e23 | 739 | );\r |
740 | if (EFI_ERROR (Status)) {\r | |
741 | return NULL;\r | |
742 | }\r | |
743 | //\r | |
744 | // Duplicate it.\r | |
745 | //\r | |
746 | DevicePath = DuplicateDevicePath (DevicePath);\r | |
894d038a | 747 | if (DevicePath == NULL) {\r |
748 | return NULL;\r | |
749 | }\r | |
6a690e23 | 750 | \r |
751 | DPathNode = (EFI_DEV_PATH *) DevicePath;\r | |
752 | \r | |
753 | while (!IsDevicePathEnd (&DPathNode->DevPath)) {\r | |
754 | if ((DevicePathType (&DPathNode->DevPath) == MESSAGING_DEVICE_PATH) &&\r | |
755 | (DevicePathSubType (&DPathNode->DevPath) == MSG_IPv4_DP)\r | |
756 | ) {\r | |
757 | \r | |
758 | DPathNode->Ipv4.LocalPort = 0;\r | |
69b0882d | 759 | DPathNode->Ipv4.StaticIpAddress = (BOOLEAN) (!Session->ConfigData.NvData.InitiatorInfoFromDhcp);\r |
6a690e23 | 760 | break;\r |
761 | }\r | |
762 | \r | |
763 | DPathNode = (EFI_DEV_PATH *) NextDevicePathNode (&DPathNode->DevPath);\r | |
764 | }\r | |
765 | \r | |
766 | return DevicePath;\r | |
767 | }\r | |
768 | \r | |
12618416 | 769 | /**\r |
770 | Abort the session when the transition from BS to RT is initiated.\r | |
771 | \r | |
1055b68d | 772 | @param[in] Event The event signaled.\r |
773 | @param[in] Context The iSCSI driver data.\r | |
12618416 | 774 | **/\r |
6a690e23 | 775 | VOID\r |
776 | EFIAPI\r | |
777 | IScsiOnExitBootService (\r | |
778 | IN EFI_EVENT Event,\r | |
779 | IN VOID *Context\r | |
780 | )\r | |
6a690e23 | 781 | {\r |
782 | ISCSI_DRIVER_DATA *Private;\r | |
783 | \r | |
784 | Private = (ISCSI_DRIVER_DATA *) Context;\r | |
785 | gBS->CloseEvent (Private->ExitBootServiceEvent);\r | |
786 | \r | |
787 | IScsiSessionAbort (&Private->Session);\r | |
788 | }\r |