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Add workaround to allow installing B9S FIRM

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This commit is contained in:
d0k3 2017-08-22 13:23:48 +02:00
parent 9c02388d15
commit c0aec42f1d
1 changed files with 5 additions and 2 deletions
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7
source/game/firm.c
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@ -75,6 +75,9 @@ u32 ValidateFirm(void* firm, u32 firm_size, bool installable) {
if (ValidateFirmHeader(header, firm_size) != 0)
return 1;
// check for boot9strap magic
bool b9s_fix = installable && (memcmp(&(header->reserved0[0x2D]), "B9S", 3) == 0);
// hash verify all available sections and check load address
for (u32 i = 0; i < 4; i++) {
u32 whitelist_boot[] = { FIRM_VALID_ADDRESS_BOOT };
@ -85,8 +88,8 @@ u32 ValidateFirm(void* firm, u32 firm_size, bool installable) {
if (!section->size) continue;
if (sha_cmp(section->hash, ((u8*) firm) + section->offset, section->size, SHA256_MODE) != 0)
return 1;
bool is_whitelisted = false;
for (u32 a = 0; a < whitelist_size; a++) {
bool is_whitelisted = (b9s_fix && (i == 3)); // don't check last section in b9s
for (u32 a = 0; (a < whitelist_size) && !is_whitelisted; a++) {
if ((section->address >= whitelist[2*a]) && (section->address + section->size <= whitelist[(2*a)+1]))
is_whitelisted = true;
}