forked from flashrom/flashrom
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathcli_classic.c
1473 lines (1330 loc) · 45.6 KB
/
cli_classic.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* This file is part of the flashrom project.
*
* Copyright (C) 2000 Silicon Integrated System Corporation
* Copyright (C) 2004 Tyan Corp <[email protected]>
* Copyright (C) 2005-2008 coresystems GmbH
* Copyright (C) 2008,2009,2010 Carl-Daniel Hailfinger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <errno.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <string.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdint.h>
#include <cli_getopt.h>
#include "flash.h"
#include "flashchips.h"
#include "fmap.h"
#include "programmer.h"
#include "libflashrom.h"
#if CONFIG_RPMC_ENABLED == 1
#include "rpmc.h"
#endif /* CONFIG_RPMC_ENABLED */
enum {
OPTION_IFD = 0x0100,
OPTION_FMAP,
OPTION_FMAP_FILE,
OPTION_FLASH_CONTENTS,
OPTION_FLASH_NAME,
OPTION_FLASH_SIZE,
OPTION_WP_STATUS,
OPTION_WP_SET_RANGE,
OPTION_WP_SET_REGION,
OPTION_WP_ENABLE,
OPTION_WP_DISABLE,
OPTION_WP_LIST,
OPTION_PROGRESS,
OPTION_SACRIFICE_RATIO,
#if CONFIG_RPMC_ENABLED == 1
OPTION_RPMC_READ_DATA,
OPTION_RPMC_WRITE_ROOT_KEY,
OPTION_RPMC_UPDATE_HMAC_KEY,
OPTION_RPMC_INCREMENT_COUNTER,
OPTION_RPMC_GET_COUNTER,
OPTION_RPMC_COUNTER_ADDRESS,
OPTION_RPMC_KEY_DATA,
OPTION_RPMC_KEY_FILE,
#endif /* CONFIG_RPMC_ENABLED */
};
struct cli_options {
bool read_it, extract_it, write_it, erase_it, verify_it;
bool dont_verify_it, dont_verify_all;
bool list_supported;
char *filename;
const struct programmer_entry *prog;
char *pparam;
bool ifd, fmap;
struct flashrom_layout *layout;
struct layout_include_args *include_args;
char *layoutfile;
char *fmapfile;
unsigned int wp_start, wp_len;
bool enable_wp, disable_wp, print_wp_status;
bool set_wp_range, set_wp_region, print_wp_ranges;
char *wp_region;
bool force;
bool flash_name, flash_size;
bool show_progress;
char *logfile;
char *referencefile;
const char *chip_to_probe;
int sacrifice_ratio;
#if CONFIG_RPMC_ENABLED == 1
bool rpmc_read_data;
bool rpmc_write_root_key;
bool rpmc_update_hmac_key;
bool rpmc_increment_counter;
bool rpmc_get_counter;
unsigned int rpmc_counter_address;
uint32_t rpmc_key_data, rpmc_previous_counter_value;
const char *rpmc_root_key_file;
#endif /* CONFIG_RPMC_ENABLED */
};
static void cli_classic_usage(const char *name)
{
printf("Usage: %s [-h|-R|-L|"
"\n\t-p <programmername>[:<parameters>] [-c <chipname>]\n"
"\t\t(--flash-name|--flash-size|\n"
"\t\t [-E|-x|(-r|-w|-v) <file>]\n"
"\t\t [(-l <layoutfile>|--ifd| --fmap|--fmap-file <file>) [-i <region>[:<file>]]...]\n"
"\t\t [-n] [-N] [-f])]\n"
"\t[-V[V[V]]] [-o <logfile>]\n\n", name);
printf(" -h | --help print this help text\n"
" -R | --version print version (release)\n"
" -r | --read <file> read flash and save to <file>\n"
" -w | --write (<file>|-) write <file> or the content provided\n"
" on the standard input to flash\n"
" -v | --verify (<file>|-) verify flash against <file>\n"
" or the content provided on the standard input\n"
" -E | --erase erase flash memory\n"
" -V | --verbose more verbose output\n"
" -c | --chip <chipname> probe only for specified flash chip\n"
" -f | --force force specific operations (see man page)\n"
" -n | --noverify don't auto-verify\n"
" -N | --noverify-all verify included regions only (cf. -i)\n"
" -x | --extract extract regions to files\n"
" -l | --layout <layoutfile> read ROM layout from <layoutfile>\n"
" --wp-disable disable write protection\n"
" --wp-enable enable write protection\n"
" --wp-list list supported write protection ranges\n"
" --wp-status show write protection status\n"
" --wp-range=<start>,<len> set write protection range (use --wp-range=0,0\n"
" to unprotect the entire flash)\n"
" --wp-region <region> set write protection region\n"
" --flash-name read out the detected flash name\n"
" --flash-size read out the detected flash size\n"
" --fmap read ROM layout from fmap embedded in ROM\n"
" --fmap-file <fmapfile> read ROM layout from fmap in <fmapfile>\n"
" --ifd read layout from an Intel Firmware Descriptor\n"
" -i | --include <region>[:<file>] only read/write image <region> from layout\n"
" (optionally with data from <file>)\n"
" --image <region>[:<file>] deprecated, please use --include\n"
" -o | --output <logfile> log output to <logfile>\n"
" --flash-contents <ref-file> assume flash contents to be <ref-file>\n"
" -L | --list-supported print supported devices\n"
" --progress show progress percentage on the standard output\n"
" --sacrifice-ratio <ratio> Fraction (as a percentage, 0-50) of an erase block\n"
" that may be erased even if unmodified. Larger values\n"
" may complete programming faster, but may also hurt\n"
" chip longevity by erasing cells unnecessarily.\n"
" Default is 0, tradeoff is the speed of programming\n"
" operation VS the longevity of the chip. Default is\n"
" longevity.\n"
" DANGEROUS! It wears your chip faster!\n"
#if CONFIG_RPMC_ENABLED == 1
"RPMC COMMANDS\n"
" --get-rpmc-status read the extended status\n"
" --write-root-key write the root key register\n"
" --update-hmac-key update the hmac key register\n"
" --increment-counter <current>\n"
" increment rpmc counter\n"
" --get-counter get rpmc counter\n"
"RPMC OPTIONS\n"
" --counter-address <address> counter address (default: 0)\n"
" --rpmc-root-key <keyfile> rpmc root key file\n"
" --key-data <value> hex number to use as key data (default: 0)\n"
#endif /* CONFIG_RPMC_ENABLED */
"PROGRAMMER SELECTION OPTIONS\n"
" -p | --programmer <name>[:<param>] specify the programmer device. One of\n");
list_programmers_linebreak(4, 80, 0);
printf(".\n\nYou can specify one of -h, -R, -L, -E, -r, -w, -v"
#if CONFIG_RPMC_ENABLED == 1
", a RPMC command"
#endif /* CONFIG_RPMC_ENABLED */
" or no operation.\n"
"If no operation is specified, flashrom will only probe for flash chips.\n");
}
static void cli_classic_abort_usage(const char *msg)
{
if (msg)
fprintf(stderr, "%s", msg);
printf("Please run \"flashrom --help\" for usage info.\n");
exit(1);
}
static void cli_classic_validate_singleop(int *operation_specified)
{
if (++(*operation_specified) > 1) {
cli_classic_abort_usage("More than one operation specified. Aborting.\n");
}
}
static int check_filename(char *filename, const char *type)
{
if (!filename || (filename[0] == '\0')) {
fprintf(stderr, "Error: No %s file specified.\n", type);
return 1;
}
/* Not an error, but maybe the user intended to specify a CLI option instead of a file name. */
if (filename[0] == '-' && filename[1] != '\0')
fprintf(stderr, "Warning: Supplied %s file name starts with -\n", type);
return 0;
}
/* Ensure a file is open by means of fstat */
static bool check_file(FILE *file)
{
struct stat statbuf;
if (fstat(fileno(file), &statbuf) < 0)
return false;
return true;
}
static int parse_wp_range(unsigned int *start, unsigned int *len)
{
char *endptr = NULL, *token = NULL;
if (!optarg) {
msg_gerr("Error: No wp-range values provided\n");
return -1;
}
token = strtok(optarg, ",");
if (!token) {
msg_gerr("Error: Invalid wp-range argument format\n");
return -1;
}
*start = strtoul(token, &endptr, 0);
token = strtok(NULL, ",");
if (!token) {
msg_gerr("Error: Invalid wp-range argument format\n");
return -1;
}
*len = strtoul(token, &endptr, 0);
return 0;
}
static int print_wp_range(struct flashrom_flashctx *flash, size_t start, size_t len)
{
/* Start address and length */
msg_ginfo("start=0x%08zx length=0x%08zx ", start, len);
/* Easily readable description like 'none' or 'lower 1/8' */
size_t chip_len = flashrom_flash_getsize(flash);
if (len == 0) {
msg_ginfo("(none)");
} else if (len == chip_len) {
msg_ginfo("(all)");
} else {
const char *location = "";
if (start == 0)
location = "lower ";
if (start == chip_len - len)
location = "upper ";
/* Remove common factors of 2 to simplify */
/* the (range_len/chip_len) fraction. */
while ((chip_len % 2) == 0 && (len % 2) == 0) {
chip_len /= 2;
len /= 2;
}
msg_ginfo("(%s%zu/%zu)", location, len, chip_len);
}
return 0;
}
static const char *get_wp_error_str(int err)
{
switch (err) {
case FLASHROM_WP_ERR_CHIP_UNSUPPORTED:
return "WP operations are not implemented for this chip";
case FLASHROM_WP_ERR_READ_FAILED:
return "failed to read the current WP configuration";
case FLASHROM_WP_ERR_WRITE_FAILED:
return "failed to write the new WP configuration";
case FLASHROM_WP_ERR_VERIFY_FAILED:
return "unexpected WP configuration read back from chip";
case FLASHROM_WP_ERR_MODE_UNSUPPORTED:
return "the requested protection mode is not supported";
case FLASHROM_WP_ERR_RANGE_UNSUPPORTED:
return "the requested protection range is not supported";
case FLASHROM_WP_ERR_RANGE_LIST_UNAVAILABLE:
return "could not determine what protection ranges are available";
case FLASHROM_WP_ERR_UNSUPPORTED_STATE:
return "can't operate on current WP configuration of the chip";
}
return "unknown WP error";
}
static int wp_cli(
struct flashctx *flash,
bool enable_wp,
bool disable_wp,
bool print_wp_status,
bool print_wp_ranges,
bool set_wp_range,
uint32_t wp_start,
uint32_t wp_len)
{
if (print_wp_ranges) {
struct flashrom_wp_ranges *list;
enum flashrom_wp_result ret = flashrom_wp_get_available_ranges(&list, flash);
if (ret != FLASHROM_WP_OK) {
msg_gerr("Failed to get list of protection ranges: %s\n",
get_wp_error_str(ret));
return 1;
}
size_t count = flashrom_wp_ranges_get_count(list);
msg_ginfo("Available protection ranges:\n");
for (size_t i = 0; i < count; i++) {
size_t start, len;
flashrom_wp_ranges_get_range(&start, &len, list, i);
msg_ginfo("\t");
print_wp_range(flash, start, len);
msg_ginfo("\n");
}
flashrom_wp_ranges_release(list);
}
if (set_wp_range || disable_wp || enable_wp) {
enum flashrom_wp_mode old_mode = FLASHROM_WP_MODE_DISABLED;
struct flashrom_wp_cfg *cfg = NULL;
enum flashrom_wp_result ret = flashrom_wp_cfg_new(&cfg);
if (ret == FLASHROM_WP_OK)
ret = flashrom_wp_read_cfg(cfg, flash);
if (ret == FLASHROM_WP_OK) {
/* Store current WP mode for printing help text if */
/* changing the cfg fails. */
old_mode = flashrom_wp_get_mode(cfg);
if (set_wp_range)
flashrom_wp_set_range(cfg, wp_start, wp_len);
if (disable_wp)
flashrom_wp_set_mode(cfg, FLASHROM_WP_MODE_DISABLED);
if (enable_wp)
flashrom_wp_set_mode(cfg, FLASHROM_WP_MODE_HARDWARE);
ret = flashrom_wp_write_cfg(flash, cfg);
}
flashrom_wp_cfg_release(cfg);
if (ret != FLASHROM_WP_OK) {
msg_gerr("Failed to apply new WP settings: %s\n",
get_wp_error_str(ret));
/* Warn user if active WP is likely to have caused failure */
if (ret == FLASHROM_WP_ERR_VERIFY_FAILED) {
switch (old_mode) {
case FLASHROM_WP_MODE_HARDWARE:
msg_gerr("Note: hardware status register protection is enabled. "
"The chip's WP# pin must be set to an inactive voltage "
"level to be able to change the WP settings.\n");
break;
case FLASHROM_WP_MODE_POWER_CYCLE:
msg_gerr("Note: power-cycle status register protection is enabled. "
"A power-off, power-on cycle is usually required to change "
"the chip's WP settings.\n");
break;
case FLASHROM_WP_MODE_PERMANENT:
msg_gerr("Note: permanent status register protection is enabled. "
"The chip's WP settings cannot be modified.\n");
break;
default:
break;
}
}
return 1;
}
if (disable_wp)
msg_ginfo("Disabled hardware protection\n");
if (enable_wp)
msg_ginfo("Enabled hardware protection\n");
if (set_wp_range) {
msg_ginfo("Activated protection range: ");
print_wp_range(flash, wp_start, wp_len);
msg_ginfo("\n");
}
}
if (print_wp_status) {
size_t start, len;
enum flashrom_wp_mode mode;
struct flashrom_wp_cfg *cfg = NULL;
enum flashrom_wp_result ret = flashrom_wp_cfg_new(&cfg);
if (ret == FLASHROM_WP_OK)
ret = flashrom_wp_read_cfg(cfg, flash);
if (ret != FLASHROM_WP_OK) {
msg_gerr("Failed to get WP status: %s\n",
get_wp_error_str(ret));
flashrom_wp_cfg_release(cfg);
return 1;
}
flashrom_wp_get_range(&start, &len, cfg);
mode = flashrom_wp_get_mode(cfg);
flashrom_wp_cfg_release(cfg);
msg_ginfo("Protection range: ");
print_wp_range(flash, start, len);
msg_ginfo("\n");
msg_ginfo("Protection mode: ");
switch (mode) {
case FLASHROM_WP_MODE_DISABLED:
msg_ginfo("disabled");
break;
case FLASHROM_WP_MODE_HARDWARE:
msg_ginfo("hardware");
break;
case FLASHROM_WP_MODE_POWER_CYCLE:
msg_ginfo("power_cycle");
break;
case FLASHROM_WP_MODE_PERMANENT:
msg_ginfo("permanent");
break;
default:
msg_ginfo("unknown");
break;
}
msg_ginfo("\n");
}
return 0;
}
#if CONFIG_RPMC_ENABLED == 1
static int rpmc_cli(struct flashctx *flash,
const char *const key_file,
const uint32_t key_data,
const unsigned int counter_address,
const uint32_t previous_counter,
const bool op_read_data,
const bool op_write_root_key,
const bool op_update_hmac_key,
const bool op_increment_counter,
const bool op_get_counter)
{
if (op_write_root_key) {
enum rpmc_result result = rpmc_write_root_key(flash, key_file, counter_address);
if (result != RPMC_SUCCESS) {
msg_gerr("Failed to write root key\n%s", rpmc_describe_result(result));
return 1;
}
msg_ginfo("Successfully wrote new root key for counter %u.\n", counter_address);
}
if (op_update_hmac_key) {
enum rpmc_result result = rpmc_update_hmac_key(flash,
key_file,
key_data,
counter_address);
if (result != RPMC_SUCCESS) {
msg_gerr("Failed to update hmac key\n%s", rpmc_describe_result(result));
return 1;
}
msg_ginfo("Successfully updated hmac key to 0x%08x for counter %u.\n",
key_data,
counter_address);
}
if (op_increment_counter) {
enum rpmc_result result = rpmc_increment_counter(flash,
key_file,
key_data,
counter_address,
previous_counter);
if (result != RPMC_SUCCESS) {
msg_gerr("Failed to increment the counter\n%s", rpmc_describe_result(result));
return 1;
}
msg_ginfo("Successfully incremented counter %u.\n", counter_address);
}
if (op_get_counter) {
uint32_t counter_value;
enum rpmc_result result = rpmc_get_monotonic_counter(flash,
key_file,
key_data,
counter_address,
&counter_value);
if (result != RPMC_SUCCESS) {
msg_gerr("Failed to get the counter value\n%s", rpmc_describe_result(result));
return 1;
}
msg_ginfo("Returned counter value %u for counter %u\n", counter_value, counter_address);
}
if (op_read_data) {
struct rpmc_status_register status;
enum rpmc_result result = rpmc_read_data(flash, &status);
if (result != RPMC_SUCCESS) {
msg_gerr("Failed to read read rpmc data\n%s", rpmc_describe_result(result));
return 1;
}
msg_ginfo("Reading rpmc data returned:\n");
char bin_buffer[9];
uint8_t status_bits = status.status;
for (int i = 7; i >= 0; i--){
bin_buffer[i] = '0' + (status_bits & 1);
status_bits = status_bits >> 1;
}
bin_buffer[8] = '\0';
msg_ginfo("Extended Status: 0b%s\n", bin_buffer);
msg_ginfo("Tag:\n");
for (size_t i = 0; i < RPMC_TAG_LENGTH; i++){
msg_ginfo("0x%02x ", status.tag[i]);
}
msg_ginfo("\n");
msg_ginfo("Counter: %u\n", status.counter_data);
msg_ginfo("Signature:\n");
for (size_t i = 0; i < RPMC_SIGNATURE_LENGTH; i++){
msg_ginfo("0x%02x ", status.signature[i]);
}
msg_ginfo("\n");
}
return 0;
}
#endif /* CONFIG_RPMC_ENABLED */
/**
* @brief Reads content to buffer from one or more files.
*
* Reads content to supplied buffer from files. If a filename is specified for
* individual regions using the partial read syntax ('-i <region>[:<filename>]')
* then this will read file data into the corresponding region in the
* supplied buffer.
*
* @param layout The layout to be used.
* @param buf Chip-sized buffer to write data to
* @return 0 on success
*/
static int read_buf_from_include_args(const struct flashrom_layout *const layout, unsigned char *buf)
{
const struct romentry *entry = NULL;
/*
* Content will be read from -i args, so they must not overlap since
* we need to know exactly what content to write to the ROM.
*/
if (included_regions_overlap(layout)) {
msg_gerr("Error: Included regions must not overlap when writing.\n");
return 1;
}
while ((entry = layout_next_included(layout, entry))) {
if (!entry->file)
continue;
const struct flash_region *region = &entry->region;
if (read_buf_from_file(buf + region->start,
region->end - region->start + 1, entry->file))
return 1;
}
return 0;
}
/**
* @brief Writes content from buffer to one or more files.
*
* Writes content from supplied buffer to files. If a filename is specified for
* individual regions using the partial read syntax ('-i <region>[:<filename>]')
* then this will write files using data from the corresponding region in the
* supplied buffer.
*
* @param layout The layout to be used.
* @param buf Chip-sized buffer to read data from
* @return 0 on success
*/
static int write_buf_to_include_args(const struct flashrom_layout *const layout, unsigned char *buf)
{
const struct romentry *entry = NULL;
while ((entry = layout_next_included(layout, entry))) {
if (!entry->file)
continue;
const struct flash_region *region = &entry->region;
if (write_buf_to_file(buf + region->start,
region->end - region->start + 1, entry->file))
return 1;
}
return 0;
}
static int do_read(struct flashctx *const flash, const char *const filename)
{
int ret;
unsigned long size = flashrom_flash_getsize(flash);
unsigned char *buf = calloc(size, sizeof(unsigned char));
if (!buf) {
msg_gerr("Memory allocation failed!\n");
return 1;
}
ret = flashrom_image_read(flash, buf, size);
if (ret > 0)
goto free_out;
if (write_buf_to_include_args(get_layout(flash), buf)) {
ret = 1;
goto free_out;
}
if (filename)
ret = write_buf_to_file(buf, size, filename);
free_out:
free(buf);
return ret;
}
static int do_extract(struct flashctx *const flash)
{
prepare_layout_for_extraction(flash);
return do_read(flash, NULL);
}
static int do_write(struct flashctx *const flash, const char *const filename, const char *const referencefile)
{
const size_t flash_size = flashrom_flash_getsize(flash);
int ret = 1;
uint8_t *const newcontents = malloc(flash_size);
uint8_t *const refcontents = referencefile ? malloc(flash_size) : NULL;
if (!newcontents || (referencefile && !refcontents)) {
msg_gerr("Out of memory!\n");
goto _free_ret;
}
/* Read '-w' argument first... */
if (read_buf_from_file(newcontents, flash_size, filename))
goto _free_ret;
/*
* ... then update newcontents with contents from files provided to '-i'
* args if needed.
*/
if (read_buf_from_include_args(get_layout(flash), newcontents))
goto _free_ret;
if (referencefile) {
if (read_buf_from_file(refcontents, flash_size, referencefile))
goto _free_ret;
}
ret = flashrom_image_write(flash, newcontents, flash_size, refcontents);
_free_ret:
free(refcontents);
free(newcontents);
return ret;
}
static int do_verify(struct flashctx *const flash, const char *const filename)
{
const size_t flash_size = flashrom_flash_getsize(flash);
int ret = 1;
uint8_t *const newcontents = malloc(flash_size);
if (!newcontents) {
msg_gerr("Out of memory!\n");
goto _free_ret;
}
/* Read '-v' argument first... */
if (read_buf_from_file(newcontents, flash_size, filename))
goto _free_ret;
/*
* ... then update newcontents with contents from files provided to '-i'
* args if needed.
*/
if (read_buf_from_include_args(get_layout(flash), newcontents))
goto _free_ret;
ret = flashrom_image_verify(flash, newcontents, flash_size);
_free_ret:
free(newcontents);
return ret;
}
/* Returns the number of buses commonly supported by the current programmer and flash chip where the latter
* can not be completely accessed due to size/address limits of the programmer. */
static unsigned int count_max_decode_exceedings(const struct flashctx *flash,
const struct decode_sizes *max_rom_decode_)
{
unsigned int limitexceeded = 0;
uint32_t size = flash->chip->total_size * 1024;
enum chipbustype buses = flash->mst->buses_supported & flash->chip->bustype;
if ((buses & BUS_PARALLEL) && (max_rom_decode_->parallel < size)) {
limitexceeded++;
msg_pdbg("Chip size %"PRIu32" kB is bigger than supported "
"size %"PRIu32" kB of chipset/board/programmer "
"for %s interface, "
"probe/read/erase/write may fail. ", size / 1024,
max_rom_decode_->parallel / 1024, "Parallel");
}
if ((buses & BUS_LPC) && (max_rom_decode_->lpc < size)) {
limitexceeded++;
msg_pdbg("Chip size %"PRIu32" kB is bigger than supported "
"size %"PRIu32" kB of chipset/board/programmer "
"for %s interface, "
"probe/read/erase/write may fail. ", size / 1024,
max_rom_decode_->lpc / 1024, "LPC");
}
if ((buses & BUS_FWH) && (max_rom_decode_->fwh < size)) {
limitexceeded++;
msg_pdbg("Chip size %"PRIu32" kB is bigger than supported "
"size %"PRIu32" kB of chipset/board/programmer "
"for %s interface, "
"probe/read/erase/write may fail. ", size / 1024,
max_rom_decode_->fwh / 1024, "FWH");
}
if ((buses & BUS_SPI) && (max_rom_decode_->spi < size)) {
limitexceeded++;
msg_pdbg("Chip size %"PRIu32" kB is bigger than supported "
"size %"PRIu32" kB of chipset/board/programmer "
"for %s interface, "
"probe/read/erase/write may fail. ", size / 1024,
max_rom_decode_->spi / 1024, "SPI");
}
return limitexceeded;
}
static void parse_options(int argc, char **argv, const char *optstring,
const struct option *long_options,
struct cli_options *options)
{
const char *name;
int namelen, opt;
int option_index = 0, operation_specified = 0;
/* FIXME: Delay all operation_specified checks until after command
* line parsing to allow --help overriding everything else.
*/
while ((opt = getopt_long(argc, argv, optstring,
long_options, &option_index)) != EOF) {
switch (opt) {
case 'r':
cli_classic_validate_singleop(&operation_specified);
options->filename = strdup(optarg);
options->read_it = true;
break;
case 'w':
cli_classic_validate_singleop(&operation_specified);
options->filename = strdup(optarg);
options->write_it = true;
break;
case 'v':
//FIXME: gracefully handle superfluous -v
cli_classic_validate_singleop(&operation_specified);
if (options->dont_verify_it) {
cli_classic_abort_usage("--verify and --noverify are mutually exclusive. Aborting.\n");
}
options->filename = strdup(optarg);
options->verify_it = true;
break;
case 'n':
if (options->verify_it) {
cli_classic_abort_usage("--verify and --noverify are mutually exclusive. Aborting.\n");
}
options->dont_verify_it = true;
break;
case 'N':
options->dont_verify_all = true;
break;
case 'x':
cli_classic_validate_singleop(&operation_specified);
options->extract_it = true;
break;
case 'c':
options->chip_to_probe = strdup(optarg);
break;
case 'V':
verbose_screen++;
if (verbose_screen > FLASHROM_MSG_DEBUG2)
verbose_logfile = verbose_screen;
break;
case 'E':
cli_classic_validate_singleop(&operation_specified);
options->erase_it = true;
break;
case 'f':
options->force = true;
break;
case 'l':
if (options->layoutfile)
cli_classic_abort_usage("Error: --layout specified more than once. Aborting.\n");
if (options->ifd)
cli_classic_abort_usage("Error: --layout and --ifd both specified. Aborting.\n");
if (options->fmap)
cli_classic_abort_usage("Error: --layout and --fmap-file both specified. Aborting.\n");
options->layoutfile = strdup(optarg);
break;
case OPTION_IFD:
if (options->layoutfile)
cli_classic_abort_usage("Error: --layout and --ifd both specified. Aborting.\n");
if (options->fmap)
cli_classic_abort_usage("Error: --fmap-file and --ifd both specified. Aborting.\n");
options->ifd = true;
break;
case OPTION_FMAP_FILE:
if (options->fmap)
cli_classic_abort_usage("Error: --fmap or --fmap-file specified "
"more than once. Aborting.\n");
if (options->ifd)
cli_classic_abort_usage("Error: --fmap-file and --ifd both specified. Aborting.\n");
if (options->layoutfile)
cli_classic_abort_usage("Error: --fmap-file and --layout both specified. Aborting.\n");
options->fmapfile = strdup(optarg);
options->fmap = true;
break;
case OPTION_FMAP:
if (options->fmap)
cli_classic_abort_usage("Error: --fmap or --fmap-file specified "
"more than once. Aborting.\n");
if (options->ifd)
cli_classic_abort_usage("Error: --fmap and --ifd both specified. Aborting.\n");
if (options->layoutfile)
cli_classic_abort_usage("Error: --layout and --fmap both specified. Aborting.\n");
options->fmap = true;
break;
case 'i':
if (register_include_arg(&options->include_args, optarg))
cli_classic_abort_usage(NULL);
break;
case OPTION_FLASH_CONTENTS:
if (options->referencefile)
cli_classic_abort_usage("Error: --flash-contents specified more than once."
"Aborting.\n");
options->referencefile = strdup(optarg);
break;
case OPTION_FLASH_NAME:
cli_classic_validate_singleop(&operation_specified);
options->flash_name = true;
break;
case OPTION_FLASH_SIZE:
cli_classic_validate_singleop(&operation_specified);
options->flash_size = true;
break;
case OPTION_WP_STATUS:
options->print_wp_status = true;
break;
case OPTION_WP_LIST:
options->print_wp_ranges = true;
break;
case OPTION_WP_SET_RANGE:
if (parse_wp_range(&options->wp_start, &options->wp_len) < 0)
cli_classic_abort_usage("Incorrect wp-range arguments provided.\n");
options->set_wp_range = true;
break;
case OPTION_WP_SET_REGION:
options->set_wp_region = true;
options->wp_region = strdup(optarg);
break;
case OPTION_WP_ENABLE:
options->enable_wp = true;
break;
case OPTION_WP_DISABLE:
options->disable_wp = true;
break;
case 'L':
cli_classic_validate_singleop(&operation_specified);
options->list_supported = true;
break;
case 'p':
if (options->prog != NULL) {
cli_classic_abort_usage("Error: --programmer specified "
"more than once. You can separate "
"multiple\nparameters for a programmer "
"with \",\". Please see the man page "
"for details.\n");
}
size_t p;
for (p = 0; p < programmer_table_size; p++) {
name = programmer_table[p]->name;
namelen = strlen(name);
if (strncmp(optarg, name, namelen) == 0) {
switch (optarg[namelen]) {
case ':':
options->pparam = strdup(optarg + namelen + 1);
if (!strlen(options->pparam)) {
free(options->pparam);
options->pparam = NULL;
}
options->prog = programmer_table[p];
break;
case '\0':
options->prog = programmer_table[p];
break;
default:
/* The continue refers to the
* for loop. It is here to be
* able to differentiate between
* foo and foobar.
*/
continue;
}
break;
}
}
if (options->prog == NULL) {
fprintf(stderr, "Error: Unknown programmer \"%s\". Valid choices are:\n",
optarg);
list_programmers_linebreak(0, 80, 0);
msg_ginfo(".\n");
cli_classic_abort_usage(NULL);
}
break;
case 'R':
/* print_version() is always called during startup. */
cli_classic_validate_singleop(&operation_specified);
exit(0);
break;
case 'h':
cli_classic_validate_singleop(&operation_specified);
cli_classic_usage(argv[0]);
exit(0);
break;
case 'o':
if (options->logfile) {
fprintf(stderr, "Warning: -o/--output specified multiple times.\n");
free(options->logfile);
}
options->logfile = strdup(optarg);
if (options->logfile[0] == '\0') {
cli_classic_abort_usage("No log filename specified.\n");
}
break;
case OPTION_PROGRESS:
options->show_progress = true;
break;
case OPTION_SACRIFICE_RATIO:
/* It is okay to convert invalid input to 0. */
options->sacrifice_ratio = atoi(optarg);
break;
#if CONFIG_RPMC_ENABLED == 1
case OPTION_RPMC_READ_DATA:
options->rpmc_read_data = true;
break;
case OPTION_RPMC_WRITE_ROOT_KEY:
options->rpmc_write_root_key = true;
break;
case OPTION_RPMC_UPDATE_HMAC_KEY:
options->rpmc_update_hmac_key = true;
break;
case OPTION_RPMC_INCREMENT_COUNTER:
options->rpmc_increment_counter = true;
options->rpmc_previous_counter_value = strtoumax(optarg, NULL, 10);
break;
case OPTION_RPMC_GET_COUNTER:
options->rpmc_get_counter = true;
break;
case OPTION_RPMC_COUNTER_ADDRESS:
options->rpmc_counter_address = strtoumax(optarg, NULL, 10);
break;
case OPTION_RPMC_KEY_DATA:
options->rpmc_key_data = strtoumax(optarg, NULL, 16);
break;
case OPTION_RPMC_KEY_FILE:
options->rpmc_root_key_file = strdup(optarg);
break;
#endif /* CONFIG_RPMC_ENABLED */