1 /*- 2 * Copyright (c) 2017 Netflix, Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 28 /* 29 * Taken from MdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.h 30 */ 31 32 /** @file 33 Definition for Device Path library. 34 35 Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR> 36 SPDX-License-Identifier: BSD-2-Clause-Patent 37 38 **/ 39 40 #ifndef _UEFI_DEVICE_PATH_LIB_H_ 41 #define _UEFI_DEVICE_PATH_LIB_H_ 42 #include <Uefi.h> 43 #include <Protocol/DevicePathUtilities.h> 44 #include <Protocol/DebugPort.h> 45 #include <Protocol/DevicePathToText.h> 46 #include <Protocol/DevicePathFromText.h> 47 #include <Guid/PcAnsi.h> 48 #include <Library/DebugLib.h> 49 #include <Library/PrintLib.h> 50 #include <Library/BaseLib.h> 51 #include <Library/BaseMemoryLib.h> 52 #include <Library/MemoryAllocationLib.h> 53 #include <Library/UefiBootServicesTableLib.h> 54 #include <Library/DevicePathLib.h> 55 #include <Library/PcdLib.h> 56 #include <IndustryStandard/Bluetooth.h> 57 58 #define IS_COMMA(a) ((a) == ',') 59 #define IS_HYPHEN(a) ((a) == '-') 60 #define IS_DOT(a) ((a) == '.') 61 #define IS_LEFT_PARENTH(a) ((a) == '(') 62 #define IS_RIGHT_PARENTH(a) ((a) == ')') 63 #define IS_SLASH(a) ((a) == '/') 64 #define IS_NULL(a) ((a) == '\0') 65 66 // 67 // Private Data structure 68 // 69 typedef struct { 70 char *Str; 71 UINTN Count; 72 UINTN Capacity; 73 } POOL_PRINT; 74 75 typedef 76 EFI_DEVICE_PATH_PROTOCOL * 77 (*DEVICE_PATH_FROM_TEXT) ( 78 IN char *Str 79 ); 80 81 typedef 82 VOID 83 (*DEVICE_PATH_TO_TEXT) ( 84 IN OUT POOL_PRINT *Str, 85 IN VOID *DevicePath, 86 IN BOOLEAN DisplayOnly, 87 IN BOOLEAN AllowShortcuts 88 ); 89 90 typedef struct { 91 UINT8 Type; 92 UINT8 SubType; 93 DEVICE_PATH_TO_TEXT Function; 94 } DEVICE_PATH_TO_TEXT_TABLE; 95 96 typedef struct { 97 UINT8 Type; 98 const char *Text; 99 } DEVICE_PATH_TO_TEXT_GENERIC_TABLE; 100 101 typedef struct { 102 const char *DevicePathNodeText; 103 DEVICE_PATH_FROM_TEXT Function; 104 } DEVICE_PATH_FROM_TEXT_TABLE; 105 106 typedef struct { 107 BOOLEAN ClassExist; 108 UINT8 Class; 109 BOOLEAN SubClassExist; 110 UINT8 SubClass; 111 } USB_CLASS_TEXT; 112 113 #define USB_CLASS_AUDIO 1 114 #define USB_CLASS_CDCCONTROL 2 115 #define USB_CLASS_HID 3 116 #define USB_CLASS_IMAGE 6 117 #define USB_CLASS_PRINTER 7 118 #define USB_CLASS_MASS_STORAGE 8 119 #define USB_CLASS_HUB 9 120 #define USB_CLASS_CDCDATA 10 121 #define USB_CLASS_SMART_CARD 11 122 #define USB_CLASS_VIDEO 14 123 #define USB_CLASS_DIAGNOSTIC 220 124 #define USB_CLASS_WIRELESS 224 125 126 #define USB_CLASS_RESERVE 254 127 #define USB_SUBCLASS_FW_UPDATE 1 128 #define USB_SUBCLASS_IRDA_BRIDGE 2 129 #define USB_SUBCLASS_TEST 3 130 131 #define RFC_1700_UDP_PROTOCOL 17 132 #define RFC_1700_TCP_PROTOCOL 6 133 134 #pragma pack(1) 135 136 typedef struct { 137 EFI_DEVICE_PATH_PROTOCOL Header; 138 EFI_GUID Guid; 139 UINT8 VendorDefinedData[1]; 140 } VENDOR_DEFINED_HARDWARE_DEVICE_PATH; 141 142 typedef struct { 143 EFI_DEVICE_PATH_PROTOCOL Header; 144 EFI_GUID Guid; 145 UINT8 VendorDefinedData[1]; 146 } VENDOR_DEFINED_MESSAGING_DEVICE_PATH; 147 148 typedef struct { 149 EFI_DEVICE_PATH_PROTOCOL Header; 150 EFI_GUID Guid; 151 UINT8 VendorDefinedData[1]; 152 } VENDOR_DEFINED_MEDIA_DEVICE_PATH; 153 154 typedef struct { 155 EFI_DEVICE_PATH_PROTOCOL Header; 156 UINT32 Hid; 157 UINT32 Uid; 158 UINT32 Cid; 159 CHAR8 HidUidCidStr[3]; 160 } ACPI_EXTENDED_HID_DEVICE_PATH_WITH_STR; 161 162 typedef struct { 163 EFI_DEVICE_PATH_PROTOCOL Header; 164 UINT16 NetworkProtocol; 165 UINT16 LoginOption; 166 UINT64 Lun; 167 UINT16 TargetPortalGroupTag; 168 CHAR8 TargetName[1]; 169 } ISCSI_DEVICE_PATH_WITH_NAME; 170 171 typedef struct { 172 EFI_DEVICE_PATH_PROTOCOL Header; 173 EFI_GUID Guid; 174 UINT8 VendorDefinedData[1]; 175 } VENDOR_DEVICE_PATH_WITH_DATA; 176 177 #pragma pack() 178 179 #ifdef FreeBSD /* Remove these on FreeBSD */ 180 181 /** 182 Returns the size of a device path in bytes. 183 184 This function returns the size, in bytes, of the device path data structure 185 specified by DevicePath including the end of device path node. 186 If DevicePath is NULL or invalid, then 0 is returned. 187 188 @param DevicePath A pointer to a device path data structure. 189 190 @retval 0 If DevicePath is NULL or invalid. 191 @retval Others The size of a device path in bytes. 192 193 **/ 194 UINTN 195 EFIAPI 196 UefiDevicePathLibGetDevicePathSize ( 197 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath 198 ); 199 200 /** 201 Creates a new copy of an existing device path. 202 203 This function allocates space for a new copy of the device path specified by DevicePath. 204 If DevicePath is NULL, then NULL is returned. If the memory is successfully 205 allocated, then the contents of DevicePath are copied to the newly allocated 206 buffer, and a pointer to that buffer is returned. Otherwise, NULL is returned. 207 The memory for the new device path is allocated from EFI boot services memory. 208 It is the responsibility of the caller to free the memory allocated. 209 210 @param DevicePath A pointer to a device path data structure. 211 212 @retval NULL DevicePath is NULL or invalid. 213 @retval Others A pointer to the duplicated device path. 214 215 **/ 216 EFI_DEVICE_PATH_PROTOCOL * 217 EFIAPI 218 UefiDevicePathLibDuplicateDevicePath ( 219 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath 220 ); 221 222 /** 223 Creates a new device path by appending a second device path to a first device path. 224 225 This function creates a new device path by appending a copy of SecondDevicePath 226 to a copy of FirstDevicePath in a newly allocated buffer. Only the end-of-device-path 227 device node from SecondDevicePath is retained. The newly created device path is 228 returned. If FirstDevicePath is NULL, then it is ignored, and a duplicate of 229 SecondDevicePath is returned. If SecondDevicePath is NULL, then it is ignored, 230 and a duplicate of FirstDevicePath is returned. If both FirstDevicePath and 231 SecondDevicePath are NULL, then a copy of an end-of-device-path is returned. 232 233 If there is not enough memory for the newly allocated buffer, then NULL is returned. 234 The memory for the new device path is allocated from EFI boot services memory. 235 It is the responsibility of the caller to free the memory allocated. 236 237 @param FirstDevicePath A pointer to a device path data structure. 238 @param SecondDevicePath A pointer to a device path data structure. 239 240 @retval NULL If there is not enough memory for the newly allocated buffer. 241 @retval NULL If FirstDevicePath or SecondDevicePath is invalid. 242 @retval Others A pointer to the new device path if success. 243 Or a copy an end-of-device-path if both FirstDevicePath and SecondDevicePath are NULL. 244 245 **/ 246 EFI_DEVICE_PATH_PROTOCOL * 247 EFIAPI 248 UefiDevicePathLibAppendDevicePath ( 249 IN CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath OPTIONAL, 250 IN CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL 251 ); 252 253 /** 254 Creates a new path by appending the device node to the device path. 255 256 This function creates a new device path by appending a copy of the device node 257 specified by DevicePathNode to a copy of the device path specified by DevicePath 258 in an allocated buffer. The end-of-device-path device node is moved after the 259 end of the appended device node. 260 If DevicePathNode is NULL then a copy of DevicePath is returned. 261 If DevicePath is NULL then a copy of DevicePathNode, followed by an end-of-device 262 path device node is returned. 263 If both DevicePathNode and DevicePath are NULL then a copy of an end-of-device-path 264 device node is returned. 265 If there is not enough memory to allocate space for the new device path, then 266 NULL is returned. 267 The memory is allocated from EFI boot services memory. It is the responsibility 268 of the caller to free the memory allocated. 269 270 @param DevicePath A pointer to a device path data structure. 271 @param DevicePathNode A pointer to a single device path node. 272 273 @retval NULL If there is not enough memory for the new device path. 274 @retval Others A pointer to the new device path if success. 275 A copy of DevicePathNode followed by an end-of-device-path node 276 if both FirstDevicePath and SecondDevicePath are NULL. 277 A copy of an end-of-device-path node if both FirstDevicePath 278 and SecondDevicePath are NULL. 279 280 **/ 281 EFI_DEVICE_PATH_PROTOCOL * 282 EFIAPI 283 UefiDevicePathLibAppendDevicePathNode ( 284 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath OPTIONAL, 285 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL 286 ); 287 288 /** 289 Creates a new device path by appending the specified device path instance to the specified device 290 path. 291 292 This function creates a new device path by appending a copy of the device path 293 instance specified by DevicePathInstance to a copy of the device path specified 294 by DevicePath in a allocated buffer. 295 The end-of-device-path device node is moved after the end of the appended device 296 path instance and a new end-of-device-path-instance node is inserted between. 297 If DevicePath is NULL, then a copy if DevicePathInstance is returned. 298 If DevicePathInstance is NULL, then NULL is returned. 299 If DevicePath or DevicePathInstance is invalid, then NULL is returned. 300 If there is not enough memory to allocate space for the new device path, then 301 NULL is returned. 302 The memory is allocated from EFI boot services memory. It is the responsibility 303 of the caller to free the memory allocated. 304 305 @param DevicePath A pointer to a device path data structure. 306 @param DevicePathInstance A pointer to a device path instance. 307 308 @return A pointer to the new device path. 309 310 **/ 311 EFI_DEVICE_PATH_PROTOCOL * 312 EFIAPI 313 UefiDevicePathLibAppendDevicePathInstance ( 314 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath OPTIONAL, 315 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL 316 ); 317 318 /** 319 Creates a copy of the current device path instance and returns a pointer to the next device path 320 instance. 321 322 This function creates a copy of the current device path instance. It also updates 323 DevicePath to point to the next device path instance in the device path (or NULL 324 if no more) and updates Size to hold the size of the device path instance copy. 325 If DevicePath is NULL, then NULL is returned. 326 If DevicePath points to a invalid device path, then NULL is returned. 327 If there is not enough memory to allocate space for the new device path, then 328 NULL is returned. 329 The memory is allocated from EFI boot services memory. It is the responsibility 330 of the caller to free the memory allocated. 331 If Size is NULL, then ASSERT(). 332 333 @param DevicePath On input, this holds the pointer to the current 334 device path instance. On output, this holds 335 the pointer to the next device path instance 336 or NULL if there are no more device path 337 instances in the device path pointer to a 338 device path data structure. 339 @param Size On output, this holds the size of the device 340 path instance, in bytes or zero, if DevicePath 341 is NULL. 342 343 @return A pointer to the current device path instance. 344 345 **/ 346 EFI_DEVICE_PATH_PROTOCOL * 347 EFIAPI 348 UefiDevicePathLibGetNextDevicePathInstance ( 349 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath, 350 OUT UINTN *Size 351 ); 352 353 /** 354 Creates a device node. 355 356 This function creates a new device node in a newly allocated buffer of size 357 NodeLength and initializes the device path node header with NodeType and NodeSubType. 358 The new device path node is returned. 359 If NodeLength is smaller than a device path header, then NULL is returned. 360 If there is not enough memory to allocate space for the new device path, then 361 NULL is returned. 362 The memory is allocated from EFI boot services memory. It is the responsibility 363 of the caller to free the memory allocated. 364 365 @param NodeType The device node type for the new device node. 366 @param NodeSubType The device node sub-type for the new device node. 367 @param NodeLength The length of the new device node. 368 369 @return The new device path. 370 371 **/ 372 EFI_DEVICE_PATH_PROTOCOL * 373 EFIAPI 374 UefiDevicePathLibCreateDeviceNode ( 375 IN UINT8 NodeType, 376 IN UINT8 NodeSubType, 377 IN UINT16 NodeLength 378 ); 379 380 /** 381 Determines if a device path is single or multi-instance. 382 383 This function returns TRUE if the device path specified by DevicePath is 384 multi-instance. 385 Otherwise, FALSE is returned. 386 If DevicePath is NULL or invalid, then FALSE is returned. 387 388 @param DevicePath A pointer to a device path data structure. 389 390 @retval TRUE DevicePath is multi-instance. 391 @retval FALSE DevicePath is not multi-instance, or DevicePath 392 is NULL or invalid. 393 394 **/ 395 BOOLEAN 396 EFIAPI 397 UefiDevicePathLibIsDevicePathMultiInstance ( 398 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath 399 ); 400 401 /** 402 Converts a device path to its text representation. 403 404 @param DevicePath A Pointer to the device to be converted. 405 @param DisplayOnly If DisplayOnly is TRUE, then the shorter text representation 406 of the display node is used, where applicable. If DisplayOnly 407 is FALSE, then the longer text representation of the display node 408 is used. 409 @param AllowShortcuts If AllowShortcuts is TRUE, then the shortcut forms of text 410 representation for a device node can be used, where applicable. 411 412 @return A pointer to the allocated text representation of the device path or 413 NULL if DeviceNode is NULL or there was insufficient memory. 414 415 **/ 416 CHAR16 * 417 EFIAPI 418 UefiDevicePathLibConvertDevicePathToText ( 419 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, 420 IN BOOLEAN DisplayOnly, 421 IN BOOLEAN AllowShortcuts 422 ); 423 424 /** 425 Converts a device node to its string representation. 426 427 @param DeviceNode A Pointer to the device node to be converted. 428 @param DisplayOnly If DisplayOnly is TRUE, then the shorter text representation 429 of the display node is used, where applicable. If DisplayOnly 430 is FALSE, then the longer text representation of the display node 431 is used. 432 @param AllowShortcuts If AllowShortcuts is TRUE, then the shortcut forms of text 433 representation for a device node can be used, where applicable. 434 435 @return A pointer to the allocated text representation of the device node or NULL if DeviceNode 436 is NULL or there was insufficient memory. 437 438 **/ 439 CHAR16 * 440 EFIAPI 441 UefiDevicePathLibConvertDeviceNodeToText ( 442 IN CONST EFI_DEVICE_PATH_PROTOCOL *DeviceNode, 443 IN BOOLEAN DisplayOnly, 444 IN BOOLEAN AllowShortcuts 445 ); 446 447 /** 448 Convert text to the binary representation of a device node. 449 450 @param TextDeviceNode TextDeviceNode points to the text representation of a device 451 node. Conversion starts with the first character and continues 452 until the first non-device node character. 453 454 @return A pointer to the EFI device node or NULL if TextDeviceNode is NULL or there was 455 insufficient memory or text unsupported. 456 457 **/ 458 EFI_DEVICE_PATH_PROTOCOL * 459 EFIAPI 460 UefiDevicePathLibConvertTextToDeviceNode ( 461 IN CONST CHAR16 *TextDeviceNode 462 ); 463 464 /** 465 Convert text to the binary representation of a device path. 466 467 468 @param TextDevicePath TextDevicePath points to the text representation of a device 469 path. Conversion starts with the first character and continues 470 until the first non-device node character. 471 472 @return A pointer to the allocated device path or NULL if TextDeviceNode is NULL or 473 there was insufficient memory. 474 475 **/ 476 EFI_DEVICE_PATH_PROTOCOL * 477 EFIAPI 478 UefiDevicePathLibConvertTextToDevicePath ( 479 IN CONST CHAR16 *TextDevicePath 480 ); 481 #else 482 483 /* 484 * Small FreeBSD shim layer. Fast and lose hacks to make this code work with FreeBSD. 485 */ 486 487 #include <ctype.h> 488 489 #define _PCD_GET_MODE_32_PcdMaximumDevicePathNodeCount 1000 490 #define MAX_UINTN UINTPTR_MAX 491 492 #define AllocatePool(x) malloc(x) 493 #define AllocateZeroPool(x) calloc(1,x) 494 #define AsciiStrLen(s) strlen(s) 495 #define CopyGuid(dst, src) memcpy(dst, src, sizeof(uuid_t)) 496 #define CopyMem(d, s, l) memcpy(d, s, l) 497 #define FreePool(x) free(x) 498 #define LShiftU64(x, s) ((x) << s) 499 #define ReadUnaligned64(x) le64dec(x) 500 #define ReallocatePool(old, new, ptr) realloc(ptr, new) 501 /* 502 * Quirky StrCmp returns 0 if equal, 1 if not. This is what the code 503 * expects, though that expectation is likely a bug (it casts the 504 * return value. EDK2's StrCmp returns values just like C's strcmp, 505 * but the parse code casts this to an UINTN, which is bogus. This 506 * definition papers over that bogusness to do the right thing. If 507 * iSCSI protocol string processing is ever fixed, we can remove this 508 * bletcherous kludge. 509 */ 510 #define StrCmp(a, b) (strcmp(a, b) != 0) 511 #define StrCpyS(d, l, s) strcpy(d, s) 512 #define StrHexToUint64(x) strtoll(x, NULL, 16) 513 #define StrHexToUintn(x) strtoll(x, NULL, 16) 514 #define StrLen(x) strlen(x) 515 #define StrSize(x) (strlen(x) + 1) 516 #define StrnCatS(d, l, s, len) strncat(d, s, len) 517 #define StrnCmp(a, b, n) strncmp(a, b, n) 518 #define StrnLenS(str, max) strlen(str) 519 #define Strtoi(x) strtol(x, NULL, 0) 520 #define Strtoi64(x, y) *(long long *)y = strtoll(x, NULL, 0) 521 #define SwapBytes64(u64) bswap64(u64) 522 #define UnicodeStrToAsciiStrS(src, dest, len) strlcpy(dest, src, len) 523 #define ZeroMem(p,l) memset(p, 0, l) 524 525 #undef ASSERT 526 #define ASSERT(x) 527 528 /* 529 * Define AllocateCopyPool and others so that we "forget" about the 530 * previous non-static deifnition since we want these to be static 531 * inlines. 532 */ 533 #define AllocateCopyPool AllocateCopyPoolFreeBSD 534 #define CompareGuid CompareGuidFreeBSD 535 #define StrHexToBytes StrHexToBytesFreeBSD 536 #define StrToGuid StrToGuidFreeBSD 537 #define WriteUnaligned64 WriteUnaligned64FreeBSD 538 539 static inline void * 540 AllocateCopyPool(size_t l, const void *p) 541 { 542 void *rv; 543 544 rv = malloc(l); 545 if (rv == NULL) 546 return NULL; 547 memcpy(rv, p, l); 548 return (rv); 549 } 550 551 static inline BOOLEAN 552 CompareGuid (const GUID *g1, const GUID *g2) 553 { 554 uint32_t ignored_status; 555 556 return (uuid_compare((const uuid_t *)g1, (const uuid_t *)g2, 557 &ignored_status) == 0); 558 } 559 560 static inline int 561 StrHexToBytes(const char *str, size_t len, uint8_t *buf, size_t buflen) 562 { 563 size_t i; 564 char hex[3]; 565 566 /* 567 * Sanity check preconditions. 568 */ 569 if (buflen != len / 2 || (len % 2) == 1) 570 return 1; 571 for (i = 0; i < len; i += 2) { 572 if (!isxdigit(str[i]) || !isxdigit(str[i + 1])) 573 return 1; 574 hex[0] = str[i]; 575 hex[1] = str[i + 1]; 576 hex[2] = '\0'; 577 buf[i / 2] = strtol(hex, NULL, 16); 578 } 579 return 0; 580 } 581 582 static inline void 583 StrToGuid(const char *str, GUID *guid) 584 { 585 uint32_t status; 586 587 uuid_from_string(str, (uuid_t *)guid, &status); 588 } 589 590 static inline void 591 WriteUnaligned64(void *ptr, uint64_t val) 592 { 593 memcpy(ptr, &val, sizeof(val)); 594 } 595 596 /* 597 * Hack to allow converting %g to %s in printfs. Hack because 598 * it's single entry, uses a static buffer, etc. Sufficient for 599 * the day for this file though. IF you ever have to convert 600 * two %g's in one format, punt. Did I mention this was super lame. 601 * Not to mention it's name.... Also, the error GUID is horrific. 602 */ 603 static inline const char * 604 guid_str(const GUID *g) 605 { 606 static char buf[36 + 1]; 607 char *str = NULL; 608 int32_t ignored_status; 609 610 uuid_to_string((const uuid_t *)g, &str, &ignored_status); 611 if (str != NULL) 612 strlcpy(buf, str, sizeof(buf)); 613 else 614 strlcpy(buf, "groot-cannot-decode-guid-groot-smash", 615 sizeof(buf)); /* ^^^^^^^ 36 characters ^^^^^^^ */ 616 free(str); 617 return buf; 618 } 619 #define G(x) guid_str((const GUID *)(const void *)x) 620 #endif 621 622 #undef GLOBAL_REMOVE_IF_UNREFERENCED 623 #define GLOBAL_REMOVE_IF_UNREFERENCED static 624 625 #endif 626