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hos: Header for pkg2 is now more proper

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This commit is contained in:
CTCaer
2020-06-14 02:23:02 +03:00
parent accf226214
commit 3dcd2ad15f
4 changed files with 26 additions and 7 deletions
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21
bootloader/hos/pkg2.c
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@@ -1395,7 +1395,7 @@ DPRINTF("adding kip1 '%s' @ %08X (%08X)\n", ki->kip1->name, (u32)ki->kip1, ki->s
return ini1_size;
}
void pkg2_build_encrypt(void *dst, void *kernel, u32 kernel_size, link_t *kips_info, bool new_pkg2)
void pkg2_build_encrypt(void *dst, void *kernel, u32 kernel_size, link_t *kips_info, bool new_pkg2, u8 kb)
{
u8 *pdst = (u8 *)dst;
@@ -1406,14 +1406,20 @@ void pkg2_build_encrypt(void *dst, void *kernel, u32 kernel_size, link_t *kips_i
// Header.
pkg2_hdr_t *hdr = (pkg2_hdr_t *)pdst;
memset(hdr, 0, sizeof(pkg2_hdr_t));
pdst += sizeof(pkg2_hdr_t);
// Set initial header values.
hdr->magic = PKG2_MAGIC;
hdr->bl_ver = 0;
hdr->pkg2_ver = 0xFF;
if (!new_pkg2)
hdr->base = 0x10000000;
else
hdr->base = 0x60000;
DPRINTF("kernel @ %08X (%08X)\n", (u32)kernel, kernel_size);
pdst += sizeof(pkg2_hdr_t);
// Kernel.
memcpy(pdst, kernel, kernel_size);
if (!new_pkg2)
@@ -1436,9 +1442,20 @@ DPRINTF("kernel encrypted\n");
ini1_size = _pkg2_ini1_build(pdst, hdr, kips_info, new_pkg2);
DPRINTF("INI1 encrypted\n");
// Calculate SHA256 over encrypted Kernel and INI1.
u8 *pk2_hash_data = (u8 *)dst + 0x100 + sizeof(pkg2_hdr_t);
se_calc_sha256_oneshot(&hdr->sec_sha256[0x20 * PKG2_SEC_KERNEL],
(void *)pk2_hash_data, hdr->sec_size[PKG2_SEC_KERNEL]);
pk2_hash_data += hdr->sec_size[PKG2_SEC_KERNEL];
se_calc_sha256_oneshot(&hdr->sec_sha256[0x20 * PKG2_SEC_INI1],
(void *)pk2_hash_data, hdr->sec_size[PKG2_SEC_INI1]);
//Encrypt header.
u8 key_ver = kb ? kb + 1 : 0;
*(u32 *)hdr->ctr = 0x100 + sizeof(pkg2_hdr_t) + kernel_size + ini1_size;
hdr->ctr[4] = key_ver;
se_aes_crypt_ctr(8, hdr, sizeof(pkg2_hdr_t), hdr, sizeof(pkg2_hdr_t), hdr);
memset(hdr->ctr, 0 , 0x10);
*(u32 *)hdr->ctr = 0x100 + sizeof(pkg2_hdr_t) + kernel_size + ini1_size;
hdr->ctr[4] = key_ver;
}