mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-13 23:46:40 +00:00
520 lines
18 KiB
C++
520 lines
18 KiB
C++
/*
|
|
* Copyright (c) 2018 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <switch.h>
|
|
#include <algorithm>
|
|
#include <cstdio>
|
|
#include "ldr_npdm.hpp"
|
|
#include "ldr_registration.hpp"
|
|
#include "ldr_content_management.hpp"
|
|
|
|
static NpdmUtils::NpdmCache g_npdm_cache = {0};
|
|
static NpdmUtils::NpdmCache g_original_npdm_cache = {0};
|
|
static char g_npdm_path[FS_MAX_PATH] = {0};
|
|
|
|
Result NpdmUtils::LoadNpdmFromCache(u64 tid, NpdmInfo *out) {
|
|
if (g_npdm_cache.info.title_id != tid) {
|
|
return LoadNpdm(tid, out);
|
|
}
|
|
*out = g_npdm_cache.info;
|
|
return 0;
|
|
}
|
|
|
|
FILE *NpdmUtils::OpenNpdmFromECS(ContentManagement::ExternalContentSource *ecs) {
|
|
std::fill(g_npdm_path, g_npdm_path + FS_MAX_PATH, 0);
|
|
snprintf(g_npdm_path, FS_MAX_PATH, "%s:/main.npdm", ecs->mountpoint);
|
|
return fopen(g_npdm_path, "rb");
|
|
}
|
|
|
|
FILE *NpdmUtils::OpenNpdmFromHBL() {
|
|
std::fill(g_npdm_path, g_npdm_path + FS_MAX_PATH, 0);
|
|
snprintf(g_npdm_path, FS_MAX_PATH, "hbl:/main.npdm");
|
|
return fopen(g_npdm_path, "rb");
|
|
}
|
|
|
|
FILE *NpdmUtils::OpenNpdmFromExeFS() {
|
|
std::fill(g_npdm_path, g_npdm_path + FS_MAX_PATH, 0);
|
|
snprintf(g_npdm_path, FS_MAX_PATH, "code:/main.npdm");
|
|
return fopen(g_npdm_path, "rb");
|
|
}
|
|
|
|
FILE *NpdmUtils::OpenNpdmFromSdCard(u64 title_id) {
|
|
std::fill(g_npdm_path, g_npdm_path + FS_MAX_PATH, 0);
|
|
snprintf(g_npdm_path, FS_MAX_PATH, "sdmc:/atmosphere/titles/%016lx/exefs/main.npdm", title_id);
|
|
return fopen(g_npdm_path, "rb");
|
|
}
|
|
|
|
|
|
FILE *NpdmUtils::OpenNpdm(u64 title_id) {
|
|
ContentManagement::ExternalContentSource *ecs = nullptr;
|
|
if ((ecs = ContentManagement::GetExternalContentSource(title_id)) != nullptr) {
|
|
return OpenNpdmFromECS(ecs);
|
|
}
|
|
|
|
if (ContentManagement::ShouldOverrideContents(title_id)) {
|
|
if (ContentManagement::ShouldReplaceWithHBL(title_id)) {
|
|
return OpenNpdmFromHBL();
|
|
}
|
|
FILE *f_out = OpenNpdmFromSdCard(title_id);
|
|
if (f_out != NULL) {
|
|
return f_out;
|
|
}
|
|
}
|
|
return OpenNpdmFromExeFS();
|
|
}
|
|
|
|
Result NpdmUtils::LoadNpdmInternal(FILE *f_npdm, NpdmUtils::NpdmCache *cache) {
|
|
Result rc;
|
|
|
|
cache->info = (const NpdmUtils::NpdmInfo){0};
|
|
|
|
rc = 0x202;
|
|
if (f_npdm == NULL) {
|
|
/* For generic "Couldn't open the file" error, just say the file doesn't exist. */
|
|
return rc;
|
|
}
|
|
|
|
fseek(f_npdm, 0, SEEK_END);
|
|
size_t npdm_size = ftell(f_npdm);
|
|
fseek(f_npdm, 0, SEEK_SET);
|
|
|
|
rc = 0x609;
|
|
if ((npdm_size > sizeof(cache->buffer)) || (fread(cache->buffer, 1, npdm_size, f_npdm) != npdm_size)) {
|
|
fclose(f_npdm);
|
|
return rc;
|
|
}
|
|
|
|
fclose(f_npdm);
|
|
|
|
rc = 0x809;
|
|
if (npdm_size < sizeof(NpdmUtils::NpdmHeader)) {
|
|
return rc;
|
|
}
|
|
|
|
/* For ease of access... */
|
|
cache->info.header = (NpdmUtils::NpdmHeader *)(cache->buffer);
|
|
NpdmInfo *info = &cache->info;
|
|
|
|
if (info->header->magic != MAGIC_META) {
|
|
return rc;
|
|
}
|
|
|
|
if (info->header->mmu_flags > 0xF) {
|
|
return rc;
|
|
}
|
|
|
|
if (info->header->aci0_offset < sizeof(NpdmUtils::NpdmHeader) || info->header->aci0_size < sizeof(NpdmUtils::NpdmAci0) || info->header->aci0_offset + info->header->aci0_size > npdm_size) {
|
|
return rc;
|
|
}
|
|
|
|
info->aci0 = (NpdmAci0 *)(cache->buffer + info->header->aci0_offset);
|
|
|
|
if (info->aci0->magic != MAGIC_ACI0) {
|
|
return rc;
|
|
}
|
|
|
|
if (info->aci0->fah_size > info->header->aci0_size || info->aci0->fah_offset < sizeof(NpdmUtils::NpdmAci0) || info->aci0->fah_offset + info->aci0->fah_size > info->header->aci0_size) {
|
|
return rc;
|
|
}
|
|
|
|
info->aci0_fah = (void *)((uintptr_t)info->aci0 + info->aci0->fah_offset);
|
|
|
|
if (info->aci0->sac_size > info->header->aci0_size || info->aci0->sac_offset < sizeof(NpdmUtils::NpdmAci0) || info->aci0->sac_offset + info->aci0->sac_size > info->header->aci0_size) {
|
|
return rc;
|
|
}
|
|
|
|
info->aci0_sac = (void *)((uintptr_t)info->aci0 + info->aci0->sac_offset);
|
|
|
|
if (info->aci0->kac_size > info->header->aci0_size || info->aci0->kac_offset < sizeof(NpdmUtils::NpdmAci0) || info->aci0->kac_offset + info->aci0->kac_size > info->header->aci0_size) {
|
|
return rc;
|
|
}
|
|
|
|
info->aci0_kac = (void *)((uintptr_t)info->aci0 + info->aci0->kac_offset);
|
|
|
|
if (info->header->acid_offset < sizeof(NpdmUtils::NpdmHeader) || info->header->acid_size < sizeof(NpdmUtils::NpdmAcid) || info->header->acid_offset + info->header->acid_size > npdm_size) {
|
|
return rc;
|
|
}
|
|
|
|
info->acid = (NpdmAcid *)(cache->buffer + info->header->acid_offset);
|
|
|
|
if (info->acid->magic != MAGIC_ACID) {
|
|
return rc;
|
|
}
|
|
|
|
/* TODO: Check if retail flag is set if not development hardware. */
|
|
|
|
if (info->acid->fac_size > info->header->acid_size || info->acid->fac_offset < sizeof(NpdmUtils::NpdmAcid) || info->acid->fac_offset + info->acid->fac_size > info->header->acid_size) {
|
|
return rc;
|
|
}
|
|
|
|
info->acid_fac = (void *)((uintptr_t)info->acid + info->acid->fac_offset);
|
|
|
|
if (info->acid->sac_size > info->header->acid_size || info->acid->sac_offset < sizeof(NpdmUtils::NpdmAcid) || info->acid->sac_offset + info->acid->sac_size > info->header->acid_size) {
|
|
return rc;
|
|
}
|
|
|
|
info->acid_sac = (void *)((uintptr_t)info->acid + info->acid->sac_offset);
|
|
|
|
if (info->acid->kac_size > info->header->acid_size || info->acid->kac_offset < sizeof(NpdmUtils::NpdmAcid) || info->acid->kac_offset + info->acid->kac_size > info->header->acid_size) {
|
|
return rc;
|
|
}
|
|
|
|
info->acid_kac = (void *)((uintptr_t)info->acid + info->acid->kac_offset);
|
|
|
|
rc = 0;
|
|
return rc;
|
|
}
|
|
|
|
Result NpdmUtils::LoadNpdm(u64 tid, NpdmInfo *out) {
|
|
Result rc;
|
|
|
|
rc = LoadNpdmInternal(OpenNpdm(tid), &g_npdm_cache);
|
|
|
|
if (R_FAILED(rc)) {
|
|
return rc;
|
|
}
|
|
|
|
NpdmInfo *info = &g_npdm_cache.info;
|
|
/* Override the ACID/ACI0 title ID, in order to facilitate HBL takeover of any title. */
|
|
info->acid->title_id_range_min = tid;
|
|
info->acid->title_id_range_max = tid;
|
|
info->aci0->title_id = tid;
|
|
|
|
if (ContentManagement::ShouldOverrideContents(tid) && ContentManagement::ShouldReplaceWithHBL(tid)
|
|
&& R_SUCCEEDED(LoadNpdmInternal(OpenNpdmFromExeFS(), &g_original_npdm_cache))) {
|
|
NpdmInfo *original_info = &g_original_npdm_cache.info;
|
|
/* Fix pool partition. */
|
|
if (kernelAbove500()) {
|
|
info->acid->flags = (info->acid->flags & 0xFFFFFFC3) | (original_info->acid->flags & 0x0000003C);
|
|
}
|
|
/* Fix application type. */
|
|
const u32 original_application_type = GetApplicationTypeRaw((u32 *)original_info->aci0_kac, original_info->aci0->kac_size/sizeof(u32)) & 7;
|
|
u32 *caps = (u32 *)info->aci0_kac;
|
|
for (unsigned int i = 0; i < info->aci0->kac_size/sizeof(u32); i++) {
|
|
if ((caps[i] & 0x3FFF) == 0x1FFF) {
|
|
caps[i] = (caps[i] & 0xFFFE3FFF) | (original_application_type << 14);
|
|
}
|
|
}
|
|
caps = (u32 *)info->acid_kac;
|
|
for (unsigned int i = 0; i < info->acid->kac_size/sizeof(u32); i++) {
|
|
if ((caps[i] & 0x3FFF) == 0x1FFF) {
|
|
caps[i] = (caps[i] & 0xFFFE3FFF) | (original_application_type << 14);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* We validated! */
|
|
info->title_id = tid;
|
|
*out = *info;
|
|
rc = 0;
|
|
|
|
return rc;
|
|
}
|
|
|
|
Result NpdmUtils::ValidateCapabilityAgainstRestrictions(u32 *restrict_caps, size_t num_restrict_caps, u32 *&cur_cap, size_t &caps_remaining) {
|
|
Result rc = 0;
|
|
u32 desc = *cur_cap++;
|
|
caps_remaining--;
|
|
unsigned int low_bits = 0;
|
|
while (desc & 1) {
|
|
desc >>= 1;
|
|
low_bits++;
|
|
}
|
|
desc >>= 1;
|
|
u32 r_desc = 0;
|
|
switch (low_bits) {
|
|
case 3: /* Kernel flags. */
|
|
rc = 0xCE09;
|
|
for (size_t i = 0; i < num_restrict_caps; i++) {
|
|
if ((restrict_caps[i] & 0xF) == 0x7) {
|
|
r_desc = restrict_caps[i] >> 4;
|
|
u32 highest_thread_prio = desc & 0x3F;
|
|
u32 r_highest_thread_prio = r_desc & 0x3F;
|
|
desc >>= 6;
|
|
r_desc >>= 6;
|
|
u32 lowest_thread_prio = desc & 0x3F;
|
|
u32 r_lowest_thread_prio = r_desc & 0x3F;
|
|
desc >>= 6;
|
|
r_desc >>= 6;
|
|
u32 lowest_cpu_id = desc & 0xFF;
|
|
u32 r_lowest_cpu_id = r_desc & 0xFF;
|
|
desc >>= 8;
|
|
r_desc >>= 8;
|
|
u32 highest_cpu_id = desc & 0xFF;
|
|
u32 r_highest_cpu_id = r_desc & 0xFF;
|
|
if (highest_thread_prio > r_highest_thread_prio) {
|
|
break;
|
|
}
|
|
if (lowest_thread_prio > highest_thread_prio) {
|
|
break;
|
|
}
|
|
if (lowest_thread_prio < r_lowest_thread_prio) {
|
|
break;
|
|
}
|
|
if (lowest_cpu_id < r_lowest_cpu_id) {
|
|
break;
|
|
}
|
|
if (lowest_cpu_id > r_highest_cpu_id) {
|
|
break;
|
|
}
|
|
if (highest_cpu_id > r_highest_cpu_id) {
|
|
break;
|
|
}
|
|
/* Valid! */
|
|
rc = 0;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 4: /* Syscall mask. */
|
|
rc = 0xD009;
|
|
for (size_t i = 0; i < num_restrict_caps; i++) {
|
|
if ((restrict_caps[i] & 0x1F) == 0xF) {
|
|
r_desc = restrict_caps[i] >> 5;
|
|
u32 syscall_base = (desc >> 24);
|
|
u32 r_syscall_base = (r_desc >> 24);
|
|
if (syscall_base != r_syscall_base) {
|
|
continue;
|
|
}
|
|
u32 syscall_mask = desc & 0xFFFFFF;
|
|
u32 r_syscall_mask = r_desc & 0xFFFFFF;
|
|
if ((r_syscall_mask & syscall_mask) != syscall_mask) {
|
|
break;
|
|
}
|
|
/* Valid! */
|
|
rc = 0;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 6: /* Map IO/Normal. */ {
|
|
rc = 0xD409;
|
|
if (caps_remaining == 0) {
|
|
break;
|
|
}
|
|
u32 next_cap = *cur_cap++;
|
|
caps_remaining--;
|
|
if ((next_cap & 0x7F) != 0x3F) {
|
|
break;
|
|
}
|
|
u32 next_desc = next_cap >> 7;
|
|
u32 base_addr = desc & 0xFFFFFF;
|
|
u32 base_size = next_desc & 0xFFFFFF;
|
|
/* Size check the mapping. */
|
|
if (base_size >> 20) {
|
|
break;
|
|
}
|
|
u32 base_end = base_addr + base_size;
|
|
/* Validate it's possible to validate this mapping. */
|
|
if (num_restrict_caps < 2) {
|
|
break;
|
|
}
|
|
for (size_t i = 0; i < num_restrict_caps - 1; i++) {
|
|
if ((restrict_caps[i] & 0x7F) == 0x3F) {
|
|
r_desc = restrict_caps[i] >> 7;
|
|
if ((restrict_caps[i+1] & 0x7F) != 0x3F) {
|
|
break;
|
|
}
|
|
u32 r_next_desc = restrict_caps[++i] >> 7;
|
|
u32 r_base_addr = r_desc & 0xFFFFFF;
|
|
u32 r_base_size = r_next_desc & 0xFFFFFF;
|
|
/* Size check the mapping. */
|
|
if (r_base_size >> 20) {
|
|
break;
|
|
}
|
|
u32 r_base_end = r_base_addr + r_base_size;
|
|
/* Validate is_io matches. */
|
|
if (((r_desc >> 24) & 1) ^ ((desc >> 24) & 1)) {
|
|
continue;
|
|
}
|
|
/* Validate is_ro matches. */
|
|
if (((r_next_desc >> 24) & 1) ^ ((next_desc >> 24) & 1)) {
|
|
continue;
|
|
}
|
|
/* Validate bounds. */
|
|
if (base_addr < r_base_addr || base_end > r_base_end) {
|
|
continue;
|
|
}
|
|
/* Valid! */
|
|
rc = 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 7: /* Map Normal Page. */
|
|
rc = 0xD609;
|
|
for (size_t i = 0; i < num_restrict_caps; i++) {
|
|
if ((restrict_caps[i] & 0xFF) == 0x7F) {
|
|
r_desc = restrict_caps[i] >> 8;
|
|
if (r_desc != desc) {
|
|
continue;
|
|
}
|
|
/* Valid! */
|
|
rc = 0;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 11: /* IRQ Pair. */
|
|
rc = 0x0;
|
|
for (unsigned int irq_i = 0; irq_i < 2; irq_i++) {
|
|
u32 irq = desc & 0x3FF;
|
|
desc >>= 10;
|
|
if (irq != 0x3FF) {
|
|
bool found = false;
|
|
for (size_t i = 0; i < num_restrict_caps && !found; i++) {
|
|
if ((restrict_caps[i] & 0xFFF) == 0x7FF) {
|
|
r_desc = restrict_caps[i] >> 12;
|
|
u32 r_irq_0 = r_desc & 0x3FF;
|
|
r_desc >>= 10;
|
|
u32 r_irq_1 = r_desc & 0x3FF;
|
|
found |= irq == r_irq_0 || irq == r_irq_1;
|
|
found |= r_irq_0 == 0x3FF && r_irq_1 == 0x3FF;
|
|
}
|
|
}
|
|
if (!found) {
|
|
rc = 0xDE09;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 13: /* App Type. */
|
|
rc = 0xE209;
|
|
if (num_restrict_caps) {
|
|
for (size_t i = 0; i < num_restrict_caps; i++) {
|
|
if ((restrict_caps[i] & 0x3FFF) == 0x1FFF) {
|
|
r_desc = restrict_caps[i] >> 14;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
r_desc = 0;
|
|
}
|
|
if (desc == r_desc) {
|
|
/* Valid! */
|
|
rc = 0;
|
|
}
|
|
break;
|
|
case 14: /* Kernel Release Version. */
|
|
rc = 0xE409;
|
|
if (num_restrict_caps) {
|
|
for (size_t i = 0; i < num_restrict_caps; i++) {
|
|
if ((restrict_caps[i] & 0x7FFF) == 0x3FFF) {
|
|
r_desc = restrict_caps[i] >> 15;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
r_desc = 0;
|
|
}
|
|
if (desc == r_desc) {
|
|
/* Valid! */
|
|
rc = 0;
|
|
}
|
|
break;
|
|
case 15: /* Handle Table Size. */
|
|
rc = 0xE609;
|
|
for (size_t i = 0; i < num_restrict_caps; i++) {
|
|
if ((restrict_caps[i] & 0xFFFF) == 0x7FFF) {
|
|
r_desc = restrict_caps[i] >> 16;
|
|
desc &= 0x3FF;
|
|
r_desc &= 0x3FF;
|
|
if (desc > r_desc) {
|
|
break;
|
|
}
|
|
/* Valid! */
|
|
rc = 0;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 16: /* Debug Flags. */
|
|
rc = 0xE809;
|
|
if (num_restrict_caps) {
|
|
for (size_t i = 0; i < num_restrict_caps; i++) {
|
|
if ((restrict_caps[i] & 0x1FFFF) == 0xFFFF) {
|
|
r_desc = restrict_caps[i] >> 17;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
r_desc = 0;
|
|
}
|
|
if ((desc & ~r_desc) == 0) {
|
|
/* Valid! */
|
|
rc = 0;
|
|
}
|
|
break;
|
|
case 32: /* Empty Descriptor. */
|
|
rc = 0;
|
|
break;
|
|
default: /* Unrecognized Descriptor. */
|
|
rc = 0xC809;
|
|
break;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
Result NpdmUtils::ValidateCapabilities(u32 *acid_caps, size_t num_acid_caps, u32 *aci0_caps, size_t num_aci0_caps) {
|
|
Result rc = 0;
|
|
size_t remaining = num_aci0_caps;
|
|
u32 *cur_cap = aci0_caps;
|
|
while (remaining) {
|
|
if (R_FAILED((rc = ValidateCapabilityAgainstRestrictions(acid_caps, num_acid_caps, cur_cap, remaining)))) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
u32 NpdmUtils::GetApplicationType(u32 *caps, size_t num_caps) {
|
|
u32 application_type = 0;
|
|
for (unsigned int i = 0; i < num_caps; i++) {
|
|
if ((caps[i] & 0x3FFF) == 0x1FFF) {
|
|
u16 app_type = (caps[i] >> 14) & 7;
|
|
if (app_type == 1) {
|
|
application_type |= 1;
|
|
} else if (app_type == 2) {
|
|
application_type |= 2;
|
|
}
|
|
}
|
|
/* After 1.0.0, allow_debug is used as bit 4. */
|
|
if (kernelAbove200() && (caps[i] & 0x1FFFF) == 0xFFFF) {
|
|
application_type |= (caps[i] >> 15) & 4;
|
|
}
|
|
}
|
|
return application_type;
|
|
}
|
|
|
|
/* Like GetApplicationType, except this returns the raw kac descriptor value. */
|
|
u32 NpdmUtils::GetApplicationTypeRaw(u32 *caps, size_t num_caps) {
|
|
u32 application_type = 0;
|
|
for (unsigned int i = 0; i < num_caps; i++) {
|
|
if ((caps[i] & 0x3FFF) == 0x1FFF) {
|
|
return (caps[i] >> 14) & 7;
|
|
}
|
|
}
|
|
return application_type;
|
|
}
|
|
|
|
void NpdmUtils::InvalidateCache(u64 tid) {
|
|
if (g_npdm_cache.info.title_id == tid) {
|
|
g_npdm_cache.info = (const NpdmUtils::NpdmInfo){0};
|
|
}
|
|
}
|