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loader: updates from review
[unleashed.git] / usr / src / boot / sys / boot / efi / loader / main.c
blob5dc1099cdde733fd0b8815d1a09df49c1fb6407b
1 /*-
2 * Copyright (c) 2008-2010 Rui Paulo
3 * Copyright (c) 2006 Marcel Moolenaar
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
30
31 #include <sys/param.h>
32 #include <sys/reboot.h>
33 #include <sys/boot.h>
34 #include <stand.h>
35 #include <string.h>
36 #include <setjmp.h>
37
38 #include <efi.h>
39 #include <efilib.h>
40 #include <efigpt.h>
41
42 #include <bootstrap.h>
43 #include <smbios.h>
44
45 #ifdef EFI_ZFS_BOOT
46 #include <libzfs.h>
47 #endif
48
49 #include "loader_efi.h"
50
51 extern char bootprog_name[];
52 extern char bootprog_rev[];
53 extern char bootprog_date[];
54 extern char bootprog_maker[];
55
56 struct arch_switch archsw; /* MI/MD interface boundary */
57
58 EFI_GUID acpi = ACPI_TABLE_GUID;
59 EFI_GUID acpi20 = ACPI_20_TABLE_GUID;
60 EFI_GUID devid = DEVICE_PATH_PROTOCOL;
61 EFI_GUID imgid = LOADED_IMAGE_PROTOCOL;
62 EFI_GUID mps = MPS_TABLE_GUID;
63 EFI_GUID netid = EFI_SIMPLE_NETWORK_PROTOCOL;
64 EFI_GUID smbios = SMBIOS_TABLE_GUID;
65 EFI_GUID smbios3 = SMBIOS3_TABLE_GUID;
66 EFI_GUID dxe = DXE_SERVICES_TABLE_GUID;
67 EFI_GUID hoblist = HOB_LIST_TABLE_GUID;
68 EFI_GUID memtype = MEMORY_TYPE_INFORMATION_TABLE_GUID;
69 EFI_GUID debugimg = DEBUG_IMAGE_INFO_TABLE_GUID;
70 EFI_GUID fdtdtb = FDT_TABLE_GUID;
71 EFI_GUID inputid = SIMPLE_TEXT_INPUT_PROTOCOL;
72 EFI_GUID serial_io = SERIAL_IO_PROTOCOL;
73
74 extern void acpi_detect(const caddr_t);
75 void efi_serial_init(void);
76 #ifdef EFI_ZFS_BOOT
77 static void efi_zfs_probe(void);
78 #endif
79
80 /*
81 * Need this because EFI uses UTF-16 unicode string constants, but we
82 * use UTF-8. We can't use printf due to the possiblity of \0 and we
83 * don't support support wide characters either.
84 */
85 static void
86 print_str16(const CHAR16 *str)
87 {
88 int i;
89
90 for (i = 0; str[i]; i++)
91 printf("%c", (char)str[i]);
92 }
93
94 static void
95 cp16to8(const CHAR16 *src, char *dst, size_t len)
96 {
97 size_t i;
98
99 for (i = 0; i < len && src[i]; i++)
100 dst[i] = (char)src[i];
101 }
102
103 static int
104 has_keyboard(void)
105 {
106 EFI_STATUS status;
107 EFI_DEVICE_PATH *path;
108 EFI_HANDLE *hin, *hin_end, *walker;
109 UINTN sz;
110 int retval = 0;
111
112 /*
113 * Find all the handles that support the SIMPLE_TEXT_INPUT_PROTOCOL and
114 * do the typical dance to get the right sized buffer.
115 */
116 sz = 0;
117 hin = NULL;
118 status = BS->LocateHandle(ByProtocol, &inputid, 0, &sz, 0);
119 if (status == EFI_BUFFER_TOO_SMALL) {
120 hin = (EFI_HANDLE *)malloc(sz);
121 status = BS->LocateHandle(ByProtocol, &inputid, 0, &sz,
122 hin);
123 if (EFI_ERROR(status))
124 free(hin);
125 }
126 if (EFI_ERROR(status))
127 return retval;
128
129 /*
130 * Look at each of the handles. If it supports the device path protocol,
131 * use it to get the device path for this handle. Then see if that
132 * device path matches either the USB device path for keyboards or the
133 * legacy device path for keyboards.
134 */
135 hin_end = &hin[sz / sizeof(*hin)];
136 for (walker = hin; walker < hin_end; walker++) {
137 status = BS->HandleProtocol(*walker, &devid, (VOID **)&path);
138 if (EFI_ERROR(status))
139 continue;
140
141 while (!IsDevicePathEnd(path)) {
142 /*
143 * Check for the ACPI keyboard node. All PNP3xx nodes
144 * are keyboards of different flavors. Note: It is
145 * unclear of there's always a keyboard node when
146 * there's a keyboard controller, or if there's only one
147 * when a keyboard is detected at boot.
148 */
149 if (DevicePathType(path) == ACPI_DEVICE_PATH &&
150 (DevicePathSubType(path) == ACPI_DP ||
151 DevicePathSubType(path) == ACPI_EXTENDED_DP)) {
152 ACPI_HID_DEVICE_PATH *acpi;
153
154 acpi = (ACPI_HID_DEVICE_PATH *)(void *)path;
155 if ((EISA_ID_TO_NUM(acpi->HID) & 0xff00) == 0x300 &&
156 (acpi->HID & 0xffff) == PNP_EISA_ID_CONST) {
157 retval = 1;
158 goto out;
159 }
160 /*
161 * Check for USB keyboard node, if present. Unlike a
162 * PS/2 keyboard, these definitely only appear when
163 * connected to the system.
164 */
165 } else if (DevicePathType(path) == MESSAGING_DEVICE_PATH &&
166 DevicePathSubType(path) == MSG_USB_CLASS_DP) {
167 USB_CLASS_DEVICE_PATH *usb;
168
169 usb = (USB_CLASS_DEVICE_PATH *)(void *)path;
170 if (usb->DeviceClass == 3 && /* HID */
171 usb->DeviceSubClass == 1 && /* Boot devices */
172 usb->DeviceProtocol == 1) { /* Boot keyboards */
173 retval = 1;
174 goto out;
175 }
176 }
177 path = NextDevicePathNode(path);
178 }
179 }
180 out:
181 free(hin);
182 return retval;
183 }
184
185 EFI_STATUS
186 main(int argc, CHAR16 *argv[])
187 {
188 char var[128];
189 EFI_LOADED_IMAGE *img;
190 EFI_GUID *guid;
191 int i, j, vargood, unit, howto;
192 struct devsw *dev;
193 uint64_t pool_guid;
194 UINTN k;
195 int has_kbd;
196
197 archsw.arch_autoload = efi_autoload;
198 archsw.arch_getdev = efi_getdev;
199 archsw.arch_copyin = efi_copyin;
200 archsw.arch_copyout = efi_copyout;
201 archsw.arch_readin = efi_readin;
202 #ifdef EFI_ZFS_BOOT
203 /* Note this needs to be set before ZFS init. */
204 archsw.arch_zfs_probe = efi_zfs_probe;
205 #endif
206
207 has_kbd = has_keyboard();
208
209 /*
210 * XXX Chicken-and-egg problem; we want to have console output
211 * early, but some console attributes may depend on reading from
212 * eg. the boot device, which we can't do yet. We can use
213 * printf() etc. once this is done.
214 */
215 cons_probe();
216
217 /*
218 * Initialise the block cache. Set the upper limit.
219 */
220 bcache_init(32768, 512);
221
222 /*
223 * Parse the args to set the console settings, etc
224 * boot1.efi passes these in, if it can read /boot.config or /boot/config
225 * or iPXE may be setup to pass these in.
226 *
227 * Loop through the args, and for each one that contains an '=' that is
228 * not the first character, add it to the environment. This allows
229 * loader and kernel env vars to be passed on the command line. Convert
230 * args from UCS-2 to ASCII (16 to 8 bit) as they are copied.
231 */
232 howto = 0;
233 for (i = 1; i < argc; i++) {
234 if (argv[i][0] == '-') {
235 for (j = 1; argv[i][j] != 0; j++) {
236 int ch;
237
238 ch = argv[i][j];
239 switch (ch) {
240 case 'a':
241 howto |= RB_ASKNAME;
242 break;
243 case 'd':
244 howto |= RB_KDB;
245 break;
246 case 'D':
247 howto |= RB_MULTIPLE;
248 break;
249 case 'h':
250 howto |= RB_SERIAL;
251 break;
252 case 'm':
253 howto |= RB_MUTE;
254 break;
255 case 'p':
256 howto |= RB_PAUSE;
257 break;
258 case 'P':
259 if (!has_kbd)
260 howto |= RB_SERIAL | RB_MULTIPLE;
261 break;
262 case 'r':
263 howto |= RB_DFLTROOT;
264 break;
265 case 's':
266 howto |= RB_SINGLE;
267 break;
268 case 'S':
269 if (argv[i][j + 1] == 0) {
270 if (i + 1 == argc) {
271 setenv("comconsole_speed", "115200", 1);
272 } else {
273 cp16to8(&argv[i + 1][0], var,
274 sizeof(var));
275 setenv("comconsole_speedspeed", var, 1);
276 }
277 i++;
278 break;
279 } else {
280 cp16to8(&argv[i][j + 1], var,
281 sizeof(var));
282 setenv("comconsole_speed", var, 1);
283 break;
284 }
285 case 'v':
286 howto |= RB_VERBOSE;
287 break;
288 }
289 }
290 } else {
291 vargood = 0;
292 for (j = 0; argv[i][j] != 0; j++) {
293 if (j == sizeof(var)) {
294 vargood = 0;
295 break;
296 }
297 if (j > 0 && argv[i][j] == '=')
298 vargood = 1;
299 var[j] = (char)argv[i][j];
300 }
301 if (vargood) {
302 var[j] = 0;
303 putenv(var);
304 }
305 }
306 }
307 for (i = 0; howto_names[i].ev != NULL; i++)
308 if (howto & howto_names[i].mask)
309 setenv(howto_names[i].ev, "YES", 1);
310 if (howto & RB_MULTIPLE) {
311 if (howto & RB_SERIAL)
312 setenv("console", "ttya text" , 1);
313 else
314 setenv("console", "text ttya" , 1);
315 } else if (howto & RB_SERIAL) {
316 setenv("console", "ttya" , 1);
317 }
318
319 if (efi_copy_init()) {
320 printf("failed to allocate staging area\n");
321 return (EFI_BUFFER_TOO_SMALL);
322 }
323
324 /*
325 * March through the device switch probing for things.
326 */
327 for (i = 0; devsw[i] != NULL; i++)
328 if (devsw[i]->dv_init != NULL)
329 (devsw[i]->dv_init)();
330
331 /* Get our loaded image protocol interface structure. */
332 BS->HandleProtocol(IH, &imgid, (VOID**)&img);
333
334 printf("Command line arguments:");
335 for (i = 0; i < argc; i++) {
336 printf(" ");
337 print_str16(argv[i]);
338 }
339 printf("\n");
340
341 printf("Image base: 0x%lx\n", (u_long)img->ImageBase);
342 printf("EFI version: %d.%02d\n", ST->Hdr.Revision >> 16,
343 ST->Hdr.Revision & 0xffff);
344 printf("EFI Firmware: ");
345 /* printf doesn't understand EFI Unicode */
346 ST->ConOut->OutputString(ST->ConOut, ST->FirmwareVendor);
347 printf(" (rev %d.%02d)\n", ST->FirmwareRevision >> 16,
348 ST->FirmwareRevision & 0xffff);
349
350 printf("\n");
351 printf("%s, Revision %s\n", bootprog_name, bootprog_rev);
352 printf("(%s, %s)\n", bootprog_maker, bootprog_date);
353
354 /*
355 * Disable the watchdog timer. By default the boot manager sets
356 * the timer to 5 minutes before invoking a boot option. If we
357 * want to return to the boot manager, we have to disable the
358 * watchdog timer and since we're an interactive program, we don't
359 * want to wait until the user types "quit". The timer may have
360 * fired by then. We don't care if this fails. It does not prevent
361 * normal functioning in any way...
362 */
363 BS->SetWatchdogTimer(0, 0, 0, NULL);
364
365 if (efi_handle_lookup(img->DeviceHandle, &dev, &unit, &pool_guid) != 0)
366 return (EFI_NOT_FOUND);
367
368 switch (dev->dv_type) {
369 #ifdef EFI_ZFS_BOOT
370 case DEVT_ZFS: {
371 struct zfs_devdesc currdev;
372
373 currdev.d_dev = dev;
374 currdev.d_unit = unit;
375 currdev.d_type = currdev.d_dev->dv_type;
376 currdev.d_opendata = NULL;
377 currdev.pool_guid = pool_guid;
378 currdev.root_guid = 0;
379 env_setenv("currdev", EV_VOLATILE, efi_fmtdev(&currdev),
380 efi_setcurrdev, env_nounset);
381 env_setenv("loaddev", EV_VOLATILE, efi_fmtdev(&currdev), env_noset,
382 env_nounset);
383 #ifdef __FreeBSD__
384 init_zfs_bootenv(zfs_fmtdev(&currdev));
385 #endif
386 break;
387 }
388 #endif
389 default: {
390 struct devdesc currdev;
391
392 currdev.d_dev = dev;
393 currdev.d_unit = unit;
394 currdev.d_opendata = NULL;
395 currdev.d_type = currdev.d_dev->dv_type;
396 env_setenv("currdev", EV_VOLATILE, efi_fmtdev(&currdev),
397 efi_setcurrdev, env_nounset);
398 env_setenv("loaddev", EV_VOLATILE, efi_fmtdev(&currdev), env_noset,
399 env_nounset);
400 break;
401 }
402 }
403
404 setenv("LINES", "24", 1); /* optional */
405 setenv("COLUMNS", "80", 1); /* optional */
406 setenv("ISADIR", "amd64", 1); /* we only build 64bit */
407
408 for (k = 0; k < ST->NumberOfTableEntries; k++) {
409 guid = &ST->ConfigurationTable[k].VendorGuid;
410 if (!memcmp(guid, &smbios, sizeof(EFI_GUID)) ||
411 !memcmp(guid, &smbios3, sizeof(EFI_GUID))) {
412 smbios_detect(ST->ConfigurationTable[k].VendorTable);
413 continue;
414 }
415 if (!memcmp(guid, &acpi20, sizeof(EFI_GUID))) {
416 acpi_detect(ST->ConfigurationTable[k].VendorTable);
417 }
418 }
419
420 efi_serial_init(); /* detect and set up serial ports */
421 interact(NULL); /* doesn't return */
422
423 return (EFI_SUCCESS); /* keep compiler happy */
424 }
425
426 COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot);
427
428 static int
429 command_reboot(int argc __attribute((unused)),
430 char *argv[] __attribute((unused)))
431 {
432 int i;
433 const CHAR16 *msg = L"Reboot from the loader";
434
435 for (i = 0; devsw[i] != NULL; ++i)
436 if (devsw[i]->dv_cleanup != NULL)
437 (devsw[i]->dv_cleanup)();
438
439 RS->ResetSystem(EfiResetCold, EFI_SUCCESS, 23, (CHAR16 *)msg);
440
441 /* NOTREACHED */
442 return (CMD_ERROR);
443 }
444
445 COMMAND_SET(memmap, "memmap", "print memory map", command_memmap);
446
447 static int
448 command_memmap(int argc __attribute((unused)),
449 char *argv[] __attribute((unused)))
450 {
451 UINTN sz;
452 EFI_MEMORY_DESCRIPTOR *map, *p;
453 UINTN key, dsz;
454 UINT32 dver;
455 EFI_STATUS status;
456 int i, ndesc;
457 int rv = 0;
458 char line[80];
459 static const char *types[] = {
460 "Reserved",
461 "LoaderCode",
462 "LoaderData",
463 "BootServicesCode",
464 "BootServicesData",
465 "RuntimeServicesCode",
466 "RuntimeServicesData",
467 "ConventionalMemory",
468 "UnusableMemory",
469 "ACPIReclaimMemory",
470 "ACPIMemoryNVS",
471 "MemoryMappedIO",
472 "MemoryMappedIOPortSpace",
473 "PalCode"
474 };
475
476 sz = 0;
477 status = BS->GetMemoryMap(&sz, 0, &key, &dsz, &dver);
478 if (status != EFI_BUFFER_TOO_SMALL) {
479 printf("Can't determine memory map size\n");
480 return (CMD_ERROR);
481 }
482 map = malloc(sz);
483 status = BS->GetMemoryMap(&sz, map, &key, &dsz, &dver);
484 if (EFI_ERROR(status)) {
485 printf("Can't read memory map\n");
486 return (CMD_ERROR);
487 }
488
489 ndesc = sz / dsz;
490 snprintf(line, 80, "%23s %12s %12s %8s %4s\n",
491 "Type", "Physical", "Virtual", "#Pages", "Attr");
492 pager_open();
493 rv = pager_output(line);
494 if (rv) {
495 pager_close();
496 return (CMD_OK);
497 }
498
499 for (i = 0, p = map; i < ndesc;
500 i++, p = NextMemoryDescriptor(p, dsz)) {
501 snprintf(line, 80, "%23s %012lx %012lx %08lx ",
502 types[p->Type],
503 p->PhysicalStart,
504 p->VirtualStart,
505 p->NumberOfPages);
506 rv = pager_output(line);
507 if (rv)
508 break;
509
510 if (p->Attribute & EFI_MEMORY_UC)
511 printf("UC ");
512 if (p->Attribute & EFI_MEMORY_WC)
513 printf("WC ");
514 if (p->Attribute & EFI_MEMORY_WT)
515 printf("WT ");
516 if (p->Attribute & EFI_MEMORY_WB)
517 printf("WB ");
518 if (p->Attribute & EFI_MEMORY_UCE)
519 printf("UCE ");
520 if (p->Attribute & EFI_MEMORY_WP)
521 printf("WP ");
522 if (p->Attribute & EFI_MEMORY_RP)
523 printf("RP ");
524 if (p->Attribute & EFI_MEMORY_XP)
525 printf("XP ");
526 rv = pager_output("\n");
527 if (rv)
528 break;
529 }
530
531 pager_close();
532 return (CMD_OK);
533 }
534
535 COMMAND_SET(configuration, "configuration", "print configuration tables",
536 command_configuration);
537
538 static const char *
539 guid_to_string(EFI_GUID *guid)
540 {
541 static char buf[40];
542
543 sprintf(buf, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
544 guid->Data1, guid->Data2, guid->Data3, guid->Data4[0],
545 guid->Data4[1], guid->Data4[2], guid->Data4[3], guid->Data4[4],
546 guid->Data4[5], guid->Data4[6], guid->Data4[7]);
547 return (buf);
548 }
549
550 static int
551 command_configuration(int argc __attribute((unused)),
552 char *argv[] __attribute((unused)))
553 {
554 UINTN i;
555
556 printf("NumberOfTableEntries=%lu\n",
557 (unsigned long)ST->NumberOfTableEntries);
558 for (i = 0; i < ST->NumberOfTableEntries; i++) {
559 EFI_GUID *guid;
560
561 printf(" ");
562 guid = &ST->ConfigurationTable[i].VendorGuid;
563 if (!memcmp(guid, &mps, sizeof(EFI_GUID)))
564 printf("MPS Table");
565 else if (!memcmp(guid, &acpi, sizeof(EFI_GUID)))
566 printf("ACPI Table");
567 else if (!memcmp(guid, &acpi20, sizeof(EFI_GUID)))
568 printf("ACPI 2.0 Table");
569 else if (!memcmp(guid, &smbios, sizeof(EFI_GUID)))
570 printf("SMBIOS Table");
571 else if (!memcmp(guid, &smbios3, sizeof(EFI_GUID)))
572 printf("SMBIOS3 Table");
573 else if (!memcmp(guid, &dxe, sizeof(EFI_GUID)))
574 printf("DXE Table");
575 else if (!memcmp(guid, &hoblist, sizeof(EFI_GUID)))
576 printf("HOB List Table");
577 else if (!memcmp(guid, &memtype, sizeof(EFI_GUID)))
578 printf("Memory Type Information Table");
579 else if (!memcmp(guid, &debugimg, sizeof(EFI_GUID)))
580 printf("Debug Image Info Table");
581 else if (!memcmp(guid, &fdtdtb, sizeof(EFI_GUID)))
582 printf("FDT Table");
583 else
584 printf("Unknown Table (%s)", guid_to_string(guid));
585 printf(" at %p\n", ST->ConfigurationTable[i].VendorTable);
586 }
587
588 return (CMD_OK);
589 }
590
591
592 COMMAND_SET(mode, "mode", "change or display EFI text modes", command_mode);
593
594 static int
595 command_mode(int argc, char *argv[])
596 {
597 UINTN cols, rows;
598 unsigned int mode;
599 int i;
600 char *cp;
601 char rowenv[8];
602 EFI_STATUS status;
603 SIMPLE_TEXT_OUTPUT_INTERFACE *conout;
604 extern void HO(void);
605
606 conout = ST->ConOut;
607
608 if (argc > 1) {
609 mode = strtol(argv[1], &cp, 0);
610 if (cp[0] != '\0') {
611 printf("Invalid mode\n");
612 return (CMD_ERROR);
613 }
614 status = conout->QueryMode(conout, mode, &cols, &rows);
615 if (EFI_ERROR(status)) {
616 printf("invalid mode %d\n", mode);
617 return (CMD_ERROR);
618 }
619 status = conout->SetMode(conout, mode);
620 if (EFI_ERROR(status)) {
621 printf("couldn't set mode %d\n", mode);
622 return (CMD_ERROR);
623 }
624 sprintf(rowenv, "%u", (unsigned)rows);
625 setenv("LINES", rowenv, 1);
626 sprintf(rowenv, "%u", (unsigned)cols);
627 setenv("COLUMNS", rowenv, 1);
628 HO(); /* set cursor */
629 return (CMD_OK);
630 }
631
632 printf("Current mode: %d\n", conout->Mode->Mode);
633 for (i = 0; i <= conout->Mode->MaxMode; i++) {
634 status = conout->QueryMode(conout, i, &cols, &rows);
635 if (EFI_ERROR(status))
636 continue;
637 printf("Mode %d: %u columns, %u rows\n", i, (unsigned)cols,
638 (unsigned)rows);
639 }
640
641 if (i != 0)
642 printf("Select a mode with the command \"mode <number>\"\n");
643
644 return (CMD_OK);
645 }
646
647
648 COMMAND_SET(nvram, "nvram", "get NVRAM variables", command_nvram);
649
650 static int
651 command_nvram(int argc __attribute((unused)),
652 char *argv[] __attribute((unused)))
653 {
654 CHAR16 var[128];
655 UINT8 *data; /* value is in bytes */
656 EFI_STATUS status;
657 EFI_GUID varguid = { 0,0,0,{0,0,0,0,0,0,0,0} };
658 UINTN varsz, datasz, i;
659 UINT32 attr;
660 SIMPLE_TEXT_OUTPUT_INTERFACE *conout;
661
662 conout = ST->ConOut;
663
664 pager_open();
665 var[0] = 0; /* Initiate the enumeration */
666 varsz = 128;
667
668 for (status = RS->GetNextVariableName(&varsz, var, &varguid);
669 status != EFI_NOT_FOUND;
670 status = RS->GetNextVariableName(&varsz, var, &varguid)) {
671
672 /*
673 * as term emu is keeping track on cursor, use putchar().
674 */
675 for (i = 0; var[i] != 0; i++)
676 putchar(var[i]);
677 varsz = 128; /* GetNextVariableName() did change it. */
678
679 printf(": Attributes:");
680 datasz = 0;
681 status = RS->GetVariable(var, &varguid, &attr, &datasz, NULL);
682 if ((data = malloc(datasz)) == NULL)
683 break;
684 status = RS->GetVariable(var, &varguid, &attr, &datasz, data);
685 if (EFI_ERROR(status))
686 printf("<error retrieving variable>");
687 else {
688 if (attr & EFI_VARIABLE_NON_VOLATILE)
689 printf(" NV");
690 if (attr & EFI_VARIABLE_BOOTSERVICE_ACCESS)
691 printf(" BS");
692 if (attr & EFI_VARIABLE_RUNTIME_ACCESS)
693 printf(" RS");
694 if (attr & EFI_VARIABLE_HARDWARE_ERROR_RECORD)
695 printf(" HR");
696 if (attr & EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS)
697 printf(" AW");
698 if (attr &
699 EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS)
700 printf(" TW");
701
702 printf(": DataLength: %lld", (long long)datasz);
703 }
704 free(data);
705 if (pager_output("\n"))
706 break;
707 }
708
709 pager_close();
710 return (CMD_OK);
711 }
712
713 struct protocol_name {
714 EFI_GUID guid;
715 const char *name;
716 } proto_names[] = {
717 { DEVICE_PATH_PROTOCOL, "device path" },
718 { BLOCK_IO_PROTOCOL, "block io" },
719 { DISK_IO_PROTOCOL, "disk io" },
720 { EFI_DISK_INFO_PROTOCOL_GUID, "disk info" },
721 { SIMPLE_FILE_SYSTEM_PROTOCOL, "simple fs" },
722 { LOAD_FILE_PROTOCOL, "load file" },
723 { DEVICE_IO_PROTOCOL, "device io" },
724 { UNICODE_COLLATION_PROTOCOL, "unicode collation" },
725 { EFI_UNICODE_COLLATION2_PROTOCOL_GUID, "unicode collation2" },
726 { EFI_SIMPLE_NETWORK_PROTOCOL, "simple network" },
727 { SIMPLE_TEXT_OUTPUT_PROTOCOL, "simple text output" },
728 { SIMPLE_TEXT_INPUT_PROTOCOL, "simple text input" },
729 { EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID, "simple text ex input" },
730 { EFI_CONSOLE_CONTROL_PROTOCOL_GUID, "console control" },
731 { EFI_CONSOLE_IN_DEVICE_GUID, "stdin" },
732 { EFI_CONSOLE_OUT_DEVICE_GUID, "stdout" },
733 { EFI_STANDARD_ERROR_DEVICE_GUID, "stderr" },
734 { EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID, "GOP" },
735 { EFI_UGA_DRAW_PROTOCOL_GUID, "UGA draw" },
736 { EFI_PXE_BASE_CODE_PROTOCOL, "PXE base code" },
737 { EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL, "PXE base code callback" },
738 { SERIAL_IO_PROTOCOL, "serial io" },
739 { LOADED_IMAGE_PROTOCOL, "loaded image" },
740 { EFI_LOADED_IMAGE_DEVICE_PATH_PROTOCOL_GUID,
741 "loaded image device path" },
742 { EFI_ISA_IO_PROTOCOL_GUID, "ISA io" },
743 { EFI_IDE_CONTROLLER_INIT_PROTOCOL_GUID, "IDE controller init" },
744 { EFI_ISA_ACPI_PROTOCOL_GUID, "ISA ACPI" },
745 { EFI_PCI_IO_PROTOCOL_GUID, "PCI" },
746 { EFI_PCI_ROOT_IO_GUID, "PCI root" },
747 { EFI_PCI_ENUMERATION_COMPLETE_GUID, "PCI enumeration" },
748 { EFI_DRIVER_DIAGNOSTICS_PROTOCOL_GUID, "Driver diagnostics" },
749 { EFI_DRIVER_DIAGNOSTICS2_PROTOCOL_GUID, "Driver diagnostics2" },
750 { EFI_SIMPLE_POINTER_PROTOCOL_GUID, "simple pointer" },
751 { EFI_ABSOLUTE_POINTER_PROTOCOL_GUID, "absolute pointer" },
752 { EFI_VLAN_CONFIG_PROTOCOL_GUID, "VLAN config" },
753 { EFI_ARP_SERVICE_BINDING_PROTOCOL_GUID, "ARP service binding" },
754 { EFI_ARP_PROTOCOL_GUID, "ARP" },
755 { EFI_IP4_SERVICE_BINDING_PROTOCOL, "IPv4 service binding" },
756 { EFI_IP4_PROTOCOL, "IPv4" },
757 { EFI_IP4_CONFIG_PROTOCOL_GUID, "IPv4 config" },
758 { EFI_IP6_SERVICE_BINDING_PROTOCOL, "IPv6 service binding" },
759 { EFI_IP6_PROTOCOL, "IPv6" },
760 { EFI_IP6_CONFIG_PROTOCOL_GUID, "IPv6 config" },
761 { EFI_UDP4_PROTOCOL, "UDPv4" },
762 { EFI_UDP4_SERVICE_BINDING_PROTOCOL, "UDPv4 service binding" },
763 { EFI_UDP6_PROTOCOL, "UDPv6" },
764 { EFI_UDP6_SERVICE_BINDING_PROTOCOL, "UDPv6 service binding" },
765 { EFI_TCP4_PROTOCOL, "TCPv4" },
766 { EFI_TCP4_SERVICE_BINDING_PROTOCOL, "TCPv4 service binding" },
767 { EFI_TCP6_PROTOCOL, "TCPv6" },
768 { EFI_TCP6_SERVICE_BINDING_PROTOCOL, "TCPv6 service binding" },
769 { EFI_PART_TYPE_EFI_SYSTEM_PART_GUID, "EFI System partition" },
770 { EFI_PART_TYPE_LEGACY_MBR_GUID, "MBR legacy" },
771 { EFI_DEVICE_TREE_GUID, "device tree" },
772 { EFI_USB_IO_PROTOCOL_GUID, "USB io" },
773 { EFI_USB2_HC_PROTOCOL_GUID, "USB2 HC" },
774 { EFI_COMPONENT_NAME_PROTOCOL_GUID, "component name" },
775 { EFI_COMPONENT_NAME2_PROTOCOL_GUID, "component name2" },
776 { EFI_DRIVER_BINDING_PROTOCOL_GUID, "driver binding" },
777 { EFI_DRIVER_CONFIGURATION_PROTOCOL_GUID, "driver configuration" },
778 { EFI_DRIVER_CONFIGURATION2_PROTOCOL_GUID, "driver configuration2" },
779 { EFI_DECOMPRESS_PROTOCOL_GUID, "decompress" },
780 { EFI_EBC_INTERPRETER_PROTOCOL_GUID, "ebc interpreter" },
781 { EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL,
782 "network interface identifier" },
783 { EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_31,
784 "network interface identifier_31" },
785 { EFI_MANAGED_NETWORK_SERVICE_BINDING_PROTOCOL_GUID,
786 "managed network service binding" },
787 { EFI_MANAGED_NETWORK_PROTOCOL_GUID, "managed network" },
788 { EFI_FORM_BROWSER2_PROTOCOL_GUID, "form browser" },
789 { EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID, "HII config routing" },
790 { EFI_HII_DATABASE_PROTOCOL_GUID, "HII database" },
791 { EFI_HII_STRING_PROTOCOL_GUID, "HII string" },
792 { EFI_HII_IMAGE_PROTOCOL_GUID, "HII image" },
793 { EFI_HII_FONT_PROTOCOL_GUID, "HII font" },
794 { EFI_HII_CONFIGURATION_ACCESS_PROTOCOL_GUID, "HII config" },
795 { EFI_MTFTP4_SERVICE_BINDING_PROTOCOL_GUID, "MTFTP4 service binding" },
796 { EFI_MTFTP4_PROTOCOL_GUID, "MTFTP4" },
797 { EFI_MTFTP6_SERVICE_BINDING_PROTOCOL_GUID, "MTFTP6 service binding" },
798 { EFI_MTFTP6_PROTOCOL_GUID, "MTFTP6" },
799 { EFI_DHCP4_SERVICE_BINDING_PROTOCOL_GUID, "DHCP4 service binding" },
800 { EFI_DHCP4_PROTOCOL_GUID, "DHCP4" },
801 { EFI_DHCP6_SERVICE_BINDING_PROTOCOL_GUID, "DHCP6 service binding" },
802 { EFI_DHCP6_PROTOCOL_GUID, "DHCP6" },
803 { EFI_SCSI_IO_PROTOCOL_GUID, "SCSI io" },
804 { EFI_SCSI_PASS_THRU_PROTOCOL_GUID, "SCSI pass thru" },
805 { EFI_EXT_SCSI_PASS_THRU_PROTOCOL_GUID, "SCSI pass thru ext" },
806 { EFI_CAPSULE_ARCH_PROTOCOL_GUID, "Capsule arch" },
807 { EFI_MONOTONIC_COUNTER_ARCH_PROTOCOL_GUID, "monotonic counter arch" },
808 { EFI_REALTIME_CLOCK_ARCH_PROTOCOL_GUID, "realtime clock arch" },
809 { EFI_VARIABLE_ARCH_PROTOCOL_GUID, "variable arch" },
810 { EFI_VARIABLE_WRITE_ARCH_PROTOCOL_GUID, "variable write arch" },
811 { EFI_WATCHDOG_TIMER_ARCH_PROTOCOL_GUID, "watchdog timer arch" },
812 { EFI_MP_SERVICES_PROTOCOL_GUID, "MP services" },
813 { EFI_ACPI_SUPPORT_PROTOCOL_GUID, "ACPI support" },
814 { EFI_BDS_ARCH_PROTOCOL_GUID, "BDS arch" },
815 { EFI_METRONOME_ARCH_PROTOCOL_GUID, "metronome arch" },
816 { EFI_TIMER_ARCH_PROTOCOL_GUID, "timer arch" },
817 { EFI_DPC_PROTOCOL_GUID, "DPC" },
818 { EFI_PRINT2_PROTOCOL_GUID, "print2" },
819 { EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID, "device path to text" },
820 { EFI_RESET_ARCH_PROTOCOL_GUID, "reset arch" },
821 { EFI_CPU_ARCH_PROTOCOL_GUID, "CPU arch" },
822 { EFI_CPU_IO2_PROTOCOL_GUID, "CPU IO2" },
823 { EFI_LEGACY_8259_PROTOCOL_GUID, "Legacy 8259" },
824 { EFI_SECURITY_ARCH_PROTOCOL_GUID, "Security arch" },
825 { EFI_SECURITY2_ARCH_PROTOCOL_GUID, "Security2 arch" },
826 { EFI_RUNTIME_ARCH_PROTOCOL_GUID, "Runtime arch" },
827 { EFI_STATUS_CODE_RUNTIME_PROTOCOL_GUID, "status code runtime" },
828 { EFI_DATA_HUB_PROTOCOL_GUID, "data hub" },
829 { PCD_PROTOCOL_GUID, "PCD" },
830 { EFI_PCD_PROTOCOL_GUID, "EFI PCD" },
831 { EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL_GUID, "firmware volume block" },
832 { EFI_FIRMWARE_VOLUME2_PROTOCOL_GUID, "firmware volume2" },
833 { EFI_FIRMWARE_VOLUME_DISPATCH_PROTOCOL_GUID,
834 "firmware volume dispatch" },
835 { LZMA_COMPRESS_GUID, "lzma compress" },
836 { { 0,0,0,{0,0,0,0,0,0,0,0} }, NULL } /* must be last entry */
837 };
838
839 COMMAND_SET(lsefi, "lsefi", "list EFI handles", command_lsefi);
840
841 static int
842 command_lsefi(int argc __attribute((unused)),
843 char *argv[] __attribute((unused)))
844 {
845 EFI_HANDLE *buffer = NULL;
846 EFI_HANDLE handle;
847 UINTN bufsz = 0, i, j;
848 EFI_STATUS status;
849 int k, ret;
850
851 status = BS->LocateHandle(AllHandles, NULL, NULL, &bufsz, buffer);
852 if (status != EFI_BUFFER_TOO_SMALL) {
853 snprintf(command_errbuf, sizeof (command_errbuf),
854 "unexpected error: %lld", (long long)status);
855 return (CMD_ERROR);
856 }
857 if ((buffer = malloc(bufsz)) == NULL) {
858 sprintf(command_errbuf, "out of memory");
859 return (CMD_ERROR);
860 }
861
862 status = BS->LocateHandle(AllHandles, NULL, NULL, &bufsz, buffer);
863 if (EFI_ERROR(status)) {
864 free(buffer);
865 snprintf(command_errbuf, sizeof (command_errbuf),
866 "LocateHandle() error: %lld", (long long)status);
867 return (CMD_ERROR);
868 }
869
870 pager_open();
871 for (i = 0; i < (bufsz / sizeof (EFI_HANDLE)); i++) {
872 UINTN nproto = 0;
873 EFI_GUID **protocols = NULL;
874
875 handle = buffer[i];
876 printf("Handle %p", handle);
877 if (pager_output("\n"))
878 break;
879 /* device path */
880
881 status = BS->ProtocolsPerHandle(handle, &protocols, &nproto);
882 if (EFI_ERROR(status)) {
883 snprintf(command_errbuf, sizeof (command_errbuf),
884 "ProtocolsPerHandle() error: %lld",
885 (long long)status);
886 continue;
887 }
888 for (j = 0; j < nproto; j++) {
889 for (k = 0; proto_names[k].name != NULL; k++)
890 if (memcmp(protocols[j], &proto_names[k].guid,
891 sizeof (proto_names[k].guid)) == 0)
892 break;
893 if (proto_names[k].name != NULL)
894 printf(" %s", proto_names[k].name);
895 else
896 printf(" %s", guid_to_string(protocols[j]));
897 ret = pager_output("\n");
898 if (ret)
899 break;
900 }
901 BS->FreePool(protocols);
902 if (ret)
903 break;
904 }
905 pager_close();
906 free(buffer);
907 return (CMD_OK);
908 }
909
910 #ifdef EFI_ZFS_BOOT
911 COMMAND_SET(lszfs, "lszfs", "list child datasets of a zfs dataset",
912 command_lszfs);
913
914 static int
915 command_lszfs(int argc, char *argv[])
916 {
917 int err;
918
919 if (argc != 2) {
920 command_errmsg = "wrong number of arguments";
921 return (CMD_ERROR);
922 }
923
924 err = zfs_list(argv[1]);
925 if (err != 0) {
926 command_errmsg = strerror(err);
927 return (CMD_ERROR);
928 }
929 return (CMD_OK);
930 }
931
932 #ifdef __FreeBSD__
933 COMMAND_SET(reloadbe, "reloadbe", "refresh the list of ZFS Boot Environments",
934 command_reloadbe);
935
936 static int
937 command_reloadbe(int argc, char *argv[])
938 {
939 int err;
940 char *root;
941
942 if (argc > 2) {
943 command_errmsg = "wrong number of arguments";
944 return (CMD_ERROR);
945 }
946
947 if (argc == 2) {
948 err = zfs_bootenv(argv[1]);
949 } else {
950 root = getenv("zfs_be_root");
951 if (root == NULL) {
952 return (CMD_OK);
953 }
954 err = zfs_bootenv(root);
955 }
956
957 if (err != 0) {
958 command_errmsg = strerror(err);
959 return (CMD_ERROR);
960 }
961
962 return (CMD_OK);
963 }
964 #endif /* __FreeBSD__ */
965 #endif
966
967 void
968 efi_serial_init(void)
969 {
970 EFI_HANDLE *buffer = NULL;
971 UINTN bufsz = 0, i;
972 EFI_STATUS status;
973 int serial = 0;
974
975 /*
976 * get buffer size
977 */
978 status = BS->LocateHandle(ByProtocol, &serial_io, NULL, &bufsz, buffer);
979 if (status != EFI_BUFFER_TOO_SMALL) {
980 snprintf(command_errbuf, sizeof (command_errbuf),
981 "unexpected error: %lld", (long long)status);
982 return;
983 }
984 if ((buffer = malloc(bufsz)) == NULL) {
985 sprintf(command_errbuf, "out of memory");
986 return;
987 }
988
989 /*
990 * get handle array
991 */
992 status = BS->LocateHandle(ByProtocol, &serial_io, NULL, &bufsz, buffer);
993 if (EFI_ERROR(status)) {
994 free(buffer);
995 snprintf(command_errbuf, sizeof (command_errbuf),
996 "LocateHandle() error: %lld", (long long)status);
997 return;
998 }
999
1000 for (i = 0; i < (bufsz / sizeof (EFI_HANDLE)); i++) {
1001 SERIAL_IO_INTERFACE *sio;
1002 status = BS->OpenProtocol(buffer[i], &serial_io, (void**)&sio,
1003 IH, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL);
1004 if (EFI_ERROR(status)) {
1005 snprintf(command_errbuf, sizeof (command_errbuf),
1006 "OpenProtocol() error: %lld", (long long)status);
1007 }
1008 printf("serial# %d\n", serial++);
1009 }
1010
1011 free(buffer);
1012 }
1013
1014 #ifdef LOADER_FDT_SUPPORT
1015 extern int command_fdt_internal(int argc, char *argv[]);
1016
1017 /*
1018 * Since proper fdt command handling function is defined in fdt_loader_cmd.c,
1019 * and declaring it as extern is in contradiction with COMMAND_SET() macro
1020 * (which uses static pointer), we're defining wrapper function, which
1021 * calls the proper fdt handling routine.
1022 */
1023 static int
1024 command_fdt(int argc, char *argv[])
1025 {
1026 return (command_fdt_internal(argc, argv));
1027 }
1028
1029 COMMAND_SET(fdt, "fdt", "flattened device tree handling", command_fdt);
1030 #endif
1031
1032 #ifdef EFI_ZFS_BOOT
1033 static void
1034 efi_zfs_probe(void)
1035 {
1036 EFI_HANDLE h;
1037 u_int unit;
1038 int i;
1039 char dname[SPECNAMELEN + 1];
1040 uint64_t guid;
1041
1042 unit = 0;
1043 h = efi_find_handle(&efipart_dev, 0);
1044 for (i = 0; h != NULL; h = efi_find_handle(&efipart_dev, ++i)) {
1045 snprintf(dname, sizeof(dname), "%s%d:", efipart_dev.dv_name, i);
1046 if (zfs_probe_dev(dname, &guid) == 0)
1047 (void)efi_handle_update_dev(h, &zfs_dev, unit++, guid);
1048 }
1049 }
1050 #endif
Unleashed OS