Atmosphere/stratosphere/ncm/source/ncm_readonlycontentstorage.cpp
2019-07-27 11:59:56 +10:00

268 lines
No EOL
9.5 KiB
C++

/*
* Copyright (c) 2019 Adubbz
*
* 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 "ncm_fs.hpp"
#include "ncm_path_utils.hpp"
#include "ncm_readonlycontentstorage.hpp"
namespace sts::ncm {
Result ReadOnlyContentStorageInterface::Initialize(const char* root_path, MakeContentPathFunc content_path_func) {
if (this->disabled) {
return ResultNcmInvalidContentStorage;
}
const size_t root_path_len = strnlen(root_path, FS_MAX_PATH-1);
if (root_path_len >= FS_MAX_PATH-1) {
std::abort();
}
strncpy(this->root_path, root_path, FS_MAX_PATH-2);
this->make_content_path_func = *content_path_func;
return ResultSuccess;
}
Result ReadOnlyContentStorageInterface::GeneratePlaceHolderId(Out<PlaceHolderId> out) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::CreatePlaceHolder(PlaceHolderId placeholder_id, ContentId content_id, u64 size) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::DeletePlaceHolder(PlaceHolderId placeholder_id) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::HasPlaceHolder(Out<bool> out, PlaceHolderId placeholder_id) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::WritePlaceHolder(PlaceHolderId placeholder_id, u64 offset, InBuffer<u8> data) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::Register(PlaceHolderId placeholder_id, ContentId content_id) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::Delete(ContentId content_id) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::Has(Out<bool> out, ContentId content_id) {
if (this->disabled) {
return ResultNcmInvalidContentStorage;
}
char content_path[FS_MAX_PATH] = {0};
this->make_content_path_func(content_path, content_id, this->root_path);
bool has = false;
R_TRY(HasFile(&has, content_path));
if (!has) {
path::GetContentMetaPath(content_path, content_id, this->make_content_path_func, this->root_path);
R_TRY(HasFile(&has, content_path));
}
out.SetValue(has);
return ResultSuccess;
}
Result ReadOnlyContentStorageInterface::GetPath(OutPointerWithServerSize<lr::Path, 0x1> out, ContentId content_id) {
if (this->disabled) {
return ResultNcmInvalidContentStorage;
}
char content_path[FS_MAX_PATH] = {0};
char common_path[FS_MAX_PATH] = {0};
bool is_content_meta_file = false;
path::GetContentMetaPath(content_path, content_id, this->make_content_path_func, this->root_path);
R_TRY(HasFile(&is_content_meta_file, content_path));
if (!is_content_meta_file) {
this->make_content_path_func(content_path, content_id, this->root_path);
}
R_TRY(ConvertToFsCommonPath(common_path, FS_MAX_PATH-1, content_path));
*out.pointer = common_path;
return ResultSuccess;
}
Result ReadOnlyContentStorageInterface::GetPlaceHolderPath(OutPointerWithServerSize<lr::Path, 0x1> out, PlaceHolderId placeholder_id) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::CleanupAllPlaceHolder() {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::ListPlaceHolder(Out<u32> out_count, OutBuffer<PlaceHolderId> out_buf) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::GetContentCount(Out<u32> out_count) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::ListContentId(Out<u32> out_count, OutBuffer<ContentId> out_buf, u32 start_offset) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::GetSizeFromContentId(Out<u64> out_size, ContentId content_id) {
if (this->disabled) {
return ResultNcmInvalidContentStorage;
}
char content_path[FS_MAX_PATH] = {0};
bool is_content_file = false;
this->make_content_path_func(content_path, content_id, this->root_path);
R_TRY(HasFile(&is_content_file, content_path));
if (!is_content_file) {
path::GetContentMetaPath(content_path, content_id, this->make_content_path_func, this->root_path);
}
struct stat st;
if (stat(content_path, &st) == -1) {
return fsdevGetLastResult();
}
out_size.SetValue(st.st_size);
return ResultSuccess;
}
Result ReadOnlyContentStorageInterface::DisableForcibly() {
this->disabled = true;
return ResultSuccess;
}
Result ReadOnlyContentStorageInterface::RevertToPlaceHolder(PlaceHolderId placeholder_id, ContentId old_content_id, ContentId new_content_id) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::SetPlaceHolderSize(PlaceHolderId placeholder_id, u64 size) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::ReadContentIdFile(OutBuffer<u8> buf, ContentId content_id, u64 offset) {
/* Offset is too large */
if (offset >> 0x3f != 0) {
return ResultNcmInvalidOffset;
}
if (this->disabled) {
return ResultNcmInvalidContentStorage;
}
char content_path[FS_MAX_PATH] = {0};
bool is_content_file = false;
this->make_content_path_func(content_path, content_id, this->root_path);
R_TRY(HasFile(&is_content_file, content_path));
if (!is_content_file) {
path::GetContentMetaPath(content_path, content_id, this->make_content_path_func, this->root_path);
}
FILE* f = fopen(content_path, "rb");
ON_SCOPE_EXIT {
fclose(f);
};
if (f == nullptr) {
return fsdevGetLastResult();
}
if (!fseek(f, offset, SEEK_SET)) {
return fsdevGetLastResult();
}
if (fread(buf.buffer, 1, buf.num_elements, f) != buf.num_elements && ferror(f)) {
return fsdevGetLastResult();
}
return ResultSuccess;
}
Result ReadOnlyContentStorageInterface::GetRightsIdFromPlaceHolderId(Out<FsRightsId> out_rights_id, Out<u64> out_key_generation, PlaceHolderId placeholder_id) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::GetRightsIdFromContentId(Out<FsRightsId> out_rights_id, Out<u64> out_key_generation, ContentId content_id) {
if (this->disabled) {
return ResultNcmInvalidContentStorage;
}
FsRightsId rights_id = {0};
u8 key_generation = 0;
char content_path[FS_MAX_PATH] = {0};
char common_path[FS_MAX_PATH] = {0};
bool is_content_meta_file = false;
path::GetContentMetaPath(content_path, content_id, this->make_content_path_func, this->root_path);
R_TRY(HasFile(&is_content_meta_file, content_path));
if (!is_content_meta_file) {
this->make_content_path_func(content_path, content_id, this->root_path);
}
R_TRY(ConvertToFsCommonPath(common_path, FS_MAX_PATH-1, content_path));
R_TRY(fsGetRightsIdAndKeyGenerationByPath(common_path, &key_generation, &rights_id));
out_rights_id.SetValue(rights_id);
out_key_generation.SetValue(static_cast<u64>(key_generation));
return ResultSuccess;
}
Result ReadOnlyContentStorageInterface::WriteContentForDebug(ContentId content_id, u64 offset, InBuffer<u8> data) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::GetFreeSpaceSize(Out<u64> out_size) {
out_size.SetValue(0);
return ResultSuccess;
}
Result ReadOnlyContentStorageInterface::GetTotalSpaceSize(Out<u64> out_size) {
out_size.SetValue(0);
return ResultSuccess;
}
Result ReadOnlyContentStorageInterface::FlushPlaceHolder() {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::GetSizeFromPlaceHolderId(Out<u64> out, PlaceHolderId placeholder_id) {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::RepairInvalidFileAttribute() {
return ResultNcmInvalidContentStorageOperation;
}
Result ReadOnlyContentStorageInterface::GetRightsIdFromPlaceHolderIdWithCache(Out<FsRightsId> out_rights_id, Out<u64> out_key_generation, PlaceHolderId placeholder_id, ContentId cache_content_id) {
return ResultNcmInvalidContentStorageOperation;
}
}