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Code Issues Releases Activity

Fix package1_read_and_parse_boot0

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Key derivation is now working
This commit is contained in:
TuxSH 2018-05-16 01:46:08 +02:00
parent db929925f3
commit 34a658ce4c
2 changed files with 29 additions and 19 deletions
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46
fusee/fusee-secondary/src/package1.c
View file

@ -7,32 +7,44 @@
#include "se.h"
int package1_read_and_parse_boot0(void **package1loader, size_t *package1loader_size, nx_keyblob_t *keyblobs, uint32_t *revision, FILE *boot0) {
static nvboot_config_table bct = {0}; /* Normal firmware BCT, primary. TODO: check? */
nv_bootloader_info *pk1_info = &bct.bootloader[0]; /* TODO: check? */
size_t fpos, pk1_offset;
nvboot_config_table *bct; /* Normal firmware BCT, primary. TODO: check? */
nv_bootloader_info *pk1l_info; /* TODO: check? */
size_t fpos, pk1l_offset;
union {
nx_keyblob_t keyblob;
uint8_t sector[0x200];
} d;
if (package1loader == NULL || package1loader_size == NULL || keyblobs == NULL || revision == NULL || boot0 == NULL) {
errno = EINVAL;
return -1;
}
bct = malloc(sizeof(nvboot_config_table));
if (bct == NULL) {
errno = ENOMEM;
return -1;
}
pk1l_info = &bct->bootloader[0];
fpos = ftell(boot0);
/* Read the BCT. */
if (fread(&bct, sizeof(nvboot_config_table), 1, boot0) == 0) {
if (fread(bct, sizeof(nvboot_config_table), 1, boot0) == 0) {
free(bct);
return -1;
}
if (bct.bootloader_used < 1) {
if (bct->bootloader_used < 1) {
free(bct);
errno = EILSEQ;
return -1;
}
*revision = pk1_info->attribute;
*package1loader_size = pk1_info->length;
pk1_offset = 0x4000 * pk1_info->start_blk + 0x200 * pk1_info->start_page;
*revision = pk1l_info->attribute;
*package1loader_size = pk1l_info->length;
pk1l_offset = 0x4000 * pk1l_info->start_blk + 0x200 * pk1l_info->start_page;
free(bct);
(*package1loader) = memalign(0x10000, *package1loader_size);
if (*package1loader == NULL) {
@ -40,27 +52,23 @@ int package1_read_and_parse_boot0(void **package1loader, size_t *package1loader_
return -1;
}
/* Read the pk1/pk1l. */
if (fseek(boot0, fpos + pk1_offset, SEEK_SET) != 0) {
/* Read the pk1/pk1l, and skip the backup too. */
if (fseek(boot0, fpos + pk1l_offset, SEEK_SET) != 0) {
return -1;
}
if (fread(*package1loader, *package1loader_size, 1, boot0) == 0) {
return -1;
}
/* Skip the backup pk1/pk1l. */
if (fseek(boot0, *package1loader_size, SEEK_CUR) != 0) {
if (fseek(boot0, fpos + pk1l_offset + 2 * PACKAGE1LOADER_SIZE_MAX, SEEK_SET) != 0) {
return -1;
}
/* Read the full keyblob area.*/
for (size_t i = 0; i < 32; i++) {
if (fread(&keyblobs[i], sizeof(nx_keyblob_t), 1, boot0) == 0) {
return -1;
}
if (fseek(boot0, 0x200 - sizeof(nx_keyblob_t), SEEK_CUR)) {
if (fread(d.sector, 0x200, 1, boot0) == 0) {
return -1;
}
keyblobs[i] = d.keyblob;
}
return 0;

2
fusee/fusee-secondary/src/package1.h
View file

@ -4,6 +4,8 @@
#include <stdio.h>
#include "key_derivation.h"
#define PACKAGE1LOADER_SIZE_MAX 0x40000
typedef struct package1_header_t {
char magic[4];
uint32_t warmboot_size;