summaryrefslogtreecommitdiff
path: root/util/ifdfake/ifdfake.c
diff options
context:
space:
mode:
Diffstat (limited to 'util/ifdfake/ifdfake.c')
-rw-r--r--util/ifdfake/ifdfake.c221
1 files changed, 0 insertions, 221 deletions
diff --git a/util/ifdfake/ifdfake.c b/util/ifdfake/ifdfake.c
deleted file mode 100644
index b549f3ad8d..0000000000
--- a/util/ifdfake/ifdfake.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/*
- * ifdfake - Create an Intel Firmware Descriptor with just a section layout
- *
- * Copyright (C) 2013 secunet Security Networks AG
- *
- * 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; version 2 of the License.
- *
- * 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 <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <getopt.h>
-
-#define REGION_COUNT 5
-
-#define FDBAR_OFFSET 0x10
-#define FRBA_OFFSET 0x40
-
-typedef struct {
- uint32_t base, limit, size;
-} region_t;
-
-static void write_image(const region_t regions[], const char *const image)
-{
- FILE *const f = fopen(image, "w");
- if (!f) {
- perror("Could not open file");
- exit(EXIT_FAILURE);
- }
-
- if (fseek(f, 0x1000 - 1, SEEK_SET)) {
- perror("Failed to seek to end of descriptor");
- exit(EXIT_FAILURE);
- }
- char zero = '\0';
- if (fwrite(&zero, 1, 1, f) != 1) {
- fprintf(stderr, "Failed to write at end of descriptor.\n");
- exit(EXIT_FAILURE);
- }
-
- if (fseek(f, FDBAR_OFFSET, SEEK_SET)) {
- perror("Failed to seek to fdbar");
- exit(EXIT_FAILURE);
- }
-
- struct {
- uint32_t flvalsig;
- uint32_t flmap0;
- } fdbar;
- memset(&fdbar, 0x00, sizeof(fdbar));
- fdbar.flvalsig = 0x0ff0a55a;
- fdbar.flmap0 = (REGION_COUNT - 1) << 24 | (FRBA_OFFSET >> 4) << 16;
- if (fwrite(&fdbar, sizeof(fdbar), 1, f) != 1) {
- fprintf(stderr, "Failed to write fdbar.\n");
- exit(EXIT_FAILURE);
- }
-
- int i;
- uint32_t frba[REGION_COUNT];
- for (i = 0; i < REGION_COUNT; ++i) {
- if (regions[i].size)
- frba[i] = ((regions[i].limit & 0xfff000) << (16 - 12)) |
- ((regions[i].base & 0xfff000) >> 12);
- else
- frba[i] = 0x00000fff;
- }
-
- if (fseek(f, FRBA_OFFSET, SEEK_SET)) {
- perror("Failed to seek to frba");
- exit(EXIT_FAILURE);
- }
- if (fwrite(frba, sizeof(frba), 1, f) != 1) {
- fprintf(stderr, "Failed to write frba.\n");
- exit(EXIT_FAILURE);
- }
-
- fclose(f);
-}
-
-static int parse_region(const char *_arg, region_t *const region)
-{
- char *const start = strdup(_arg);
- int size_spec = 0;
- unsigned long first, second;
- if (!start) {
- fprintf(stderr, "Out of memory.\n");
- exit(EXIT_FAILURE);
- }
-
- char *colon = strchr(start, ':');
- if (!colon) {
- colon = strchr(start, '+');
- if (!colon) {
- free(start);
- return -1;
- }
- size_spec = 1;
- }
- *colon = '\0';
-
- char *const end = colon + 1;
-
- errno = 0;
- first = strtoul(start, NULL, 0);
- second = strtoul(end, NULL, 0);
-
- if (size_spec) {
- region->base = first;
- region->size = second;
- region->limit = region->base + region->size - 1;
- } else {
- region->base = first;
- region->limit = second;
- region->size = region->limit - region->base + 1;
- }
-
- free(start);
- if (errno) {
- perror("Failed to parse region");
- return -1;
- } else {
- return 0;
- }
-}
-
-static void print_usage(const char *name)
-{
- printf("usage: %s [(-b|-m|-g|-p) <start>:<end>]... <output file>\n", name);
- printf("\n"
- " -b | --bios <start>:<end> BIOS region\n"
- " -m | --me <start>:<end> Intel ME region\n"
- " -g | --gbe <start>:<end> Gigabit Ethernet region\n"
- " -p | --platform <start>:<end> Platform Data region\n"
- " -h | --help print this help\n\n"
- "<start> and <end> bounds are given in bytes, the <end> bound is inclusive.\n"
- "All regions must be multiples of 4K in size and 4K aligned.\n"
- "The descriptor region always resides in the first 4K.\n\n"
- "An IFD created with ifdfake won't work as a replacement for a real IFD.\n"
- "Never try to flash such an IFD to your board!\n\n");
-}
-
-int main(int argc, char *argv[])
-{
- int opt, option_index = 0, idx;
- region_t regions[REGION_COUNT];
-
- memset(regions, 0x00, sizeof(regions));
-
- static struct option long_options[] = {
- {"bios", 1, NULL, 'b'},
- {"me", 1, NULL, 'm'},
- {"gbe", 1, NULL, 'g'},
- {"platform", 1, NULL, 'p'},
- {"help", 0, NULL, 'h'},
- {0, 0, 0, 0}
- };
-
- while ((opt = getopt_long(argc, argv, "b:m:g:p:h?",
- long_options, &option_index)) != EOF) {
- switch (opt) {
- case 'b': case 'm': case 'g': case 'p':
- switch (opt) {
- case 'b': idx = 1; break;
- case 'm': idx = 2; break;
- case 'g': idx = 3; break;
- case 'p': idx = 4; break;
- default: idx = 0; break; /* can't happen */
- }
- if (parse_region(optarg, &regions[idx])) {
- print_usage(argv[0]);
- exit(EXIT_FAILURE);
- }
- break;
- case 'h':
- case '?':
- default:
- print_usage(argv[0]);
- exit(EXIT_SUCCESS);
- break;
- }
- }
-
- if (optind + 1 != argc) {
- fprintf(stderr, "No output file given.\n\n");
- print_usage(argv[0]);
- exit(EXIT_FAILURE);
- }
-
- regions[0].base = 0x00000000;
- regions[0].limit = 0x00000fff;
- regions[0].size = 0x00001000;
- for (idx = 1; idx < REGION_COUNT; ++idx) {
- if (regions[idx].size) {
- if (regions[idx].base & 0xfff)
- fprintf(stderr, "Region %d is "
- "not 4K aligned.\n", idx);
- else if (regions[idx].size & 0xfff)
- fprintf(stderr, "Region %d size is "
- "no multiple of 4K.\n", idx);
- else if (regions[idx].limit <= regions[idx].base)
- fprintf(stderr, "Region %d is empty.\n", idx);
- else
- continue;
- print_usage(argv[0]);
- exit(EXIT_FAILURE);
- }
- }
-
- write_image(regions, argv[optind]);
-
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 20:54:13 +0000