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fs.mitm: Use less path memory, fix source concat. (Fixes BotW, probably others)

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This commit is contained in:
Michael Scire
2018-06-28 20:39:23 -06:00
parent 8da27723fc
commit a95836552e
4 changed files with 55 additions and 13 deletions
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59
stratosphere/fs_mitm/source/fsmitm_romfsbuild.cpp
View File

@@ -20,25 +20,28 @@ void RomFSBuildContext::VisitDirectory(FsFileSystem *filesys, RomFSBuildDirector
if (this->dir_entry.type == ENTRYTYPE_DIR) {
RomFSBuildDirectoryContext *child = new RomFSBuildDirectoryContext({0});
/* Set child's path. */
strcpy(child->path, parent->path);
child->cur_path_ofs = parent->path_len + 1;
child->path_len = child->cur_path_ofs + strlen(this->dir_entry.name);
if (child->path_len > sizeof(child->path)) {
child->path = new char[child->path_len + 1];
strcpy(child->path, parent->path);
if (child->path_len > FS_MAX_PATH - 1) {
fatalSimple(0xF601);
}
strcat(child->path + parent->path_len, "/");
strcat(child->path + parent->path_len, this->dir_entry.name);
if (!this->AddDirectory(parent, child, NULL)) {
delete child->path;
delete child;
}
} else if (this->dir_entry.type == ENTRYTYPE_FILE) {
RomFSBuildFileContext *child = new RomFSBuildFileContext({0});
/* Set child's path. */
strcpy(child->path, parent->path);
child->cur_path_ofs = parent->path_len + 1;
child->path_len = child->cur_path_ofs + strlen(this->dir_entry.name);
if (child->path_len > sizeof(child->path)) {
child->path = new char[child->path_len + 1];
strcpy(child->path, parent->path);
if (child->path_len > FS_MAX_PATH - 1) {
fatalSimple(0xF601);
}
strcat(child->path + parent->path_len, "/");
@@ -49,6 +52,7 @@ void RomFSBuildContext::VisitDirectory(FsFileSystem *filesys, RomFSBuildDirector
child->size = this->dir_entry.fileSize;
if (!this->AddFile(parent, child)) {
delete child->path;
delete child;
}
} else {
@@ -89,10 +93,11 @@ void RomFSBuildContext::VisitDirectory(RomFSBuildDirectoryContext *parent, u32 p
while (cur_file != NULL) {
RomFSBuildFileContext *child = new RomFSBuildFileContext({0});
/* Set child's path. */
strcpy(child->path, parent->path);
child->cur_path_ofs = parent->path_len + 1;
child->path_len = child->cur_path_ofs + cur_file->name_size;
if (child->path_len > sizeof(child->path)) {
child->path = new char[child->path_len + 1];
strcpy(child->path, parent->path);
if (child->path_len > FS_MAX_PATH - 1) {
fatalSimple(0xF601);
}
strcat(child->path + parent->path_len, "/");
@@ -102,6 +107,7 @@ void RomFSBuildContext::VisitDirectory(RomFSBuildDirectoryContext *parent, u32 p
child->source = this->cur_source_type;
child->orig_offset = cur_file->offset;
if (!this->AddFile(parent, child)) {
delete child->path;
delete child;
}
if (cur_file->sibling == ROMFS_ENTRY_EMPTY) {
@@ -117,10 +123,11 @@ void RomFSBuildContext::VisitDirectory(RomFSBuildDirectoryContext *parent, u32 p
while (cur_child != NULL) {
RomFSBuildDirectoryContext *child = new RomFSBuildDirectoryContext({0});
/* Set child's path. */
strcpy(child->path, parent->path);
child->cur_path_ofs = parent->path_len + 1;
child->path_len = child->cur_path_ofs + cur_child->name_size;
if (child->path_len > sizeof(child->path)) {
child->path = new char[child->path_len + 1];
strcpy(child->path, parent->path);
if (child->path_len > FS_MAX_PATH - 1) {
fatalSimple(0xF601);
}
strcat(child->path + parent->path_len, "/");
@@ -128,6 +135,7 @@ void RomFSBuildContext::VisitDirectory(RomFSBuildDirectoryContext *parent, u32 p
RomFSBuildDirectoryContext *real = NULL;
if (!this->AddDirectory(parent, child, &real)) {
delete child->path;
delete child;
}
if (real == NULL) {
@@ -313,12 +321,25 @@ void RomFSBuildContext::Build(std::vector<RomFSSourceInfo> *out_infos) {
/* Determine file offsets. */
cur_file = this->files;
entry_offset = 0;
RomFSBuildFileContext *prev_file = NULL;
while (cur_file != NULL) {
this->file_partition_size = (this->file_partition_size + 0xFULL) & ~0xFULL;
/* Check for extra padding in the original romfs source and preserve it, to help ourselves later. */
if (prev_file && prev_file->source == cur_file->source && (prev_file->source == RomFSDataSource::BaseRomFS || prev_file->source == RomFSDataSource::FileRomFS)) {
u64 expected = (this->file_partition_size - prev_file->offset + prev_file->orig_offset);
if (expected != cur_file->orig_offset) {
if (expected > cur_file->orig_offset) {
/* This case should NEVER happen. */
fatalSimple(0xF601);
}
this->file_partition_size += cur_file->orig_offset - expected;
}
}
cur_file->offset = this->file_partition_size;
this->file_partition_size += cur_file->size;
cur_file->entry_offset = entry_offset;
entry_offset += sizeof(RomFSFileEntry) + ((cur_file->path_len - cur_file->cur_path_ofs + 3) & ~3);
prev_file = cur_file;
cur_file = cur_file->next;
}
@@ -357,7 +378,7 @@ void RomFSBuildContext::Build(std::vector<RomFSSourceInfo> *out_infos) {
case RomFSDataSource::BaseRomFS:
case RomFSDataSource::FileRomFS:
/* Try to compact, if possible. */
if (out_infos->back().type == cur_file->source) {
if (out_infos->back().type == cur_file->source && ((out_infos->back().virtual_offset + out_infos->back().size + 0xFULL) & ~0xFULL) == cur_file->offset + ROMFS_FILEPARTITION_OFS) {
out_infos->back().size = cur_file->offset + ROMFS_FILEPARTITION_OFS + cur_file->size - out_infos->back().virtual_offset;
} else {
out_infos->emplace_back(cur_file->offset + ROMFS_FILEPARTITION_OFS, cur_file->size, cur_file->orig_offset + ROMFS_FILEPARTITION_OFS, cur_file->source);
@@ -376,6 +397,7 @@ void RomFSBuildContext::Build(std::vector<RomFSSourceInfo> *out_infos) {
RomFSBuildFileContext *temp = cur_file;
cur_file = cur_file->next;
delete temp->path;
delete temp;
}
@@ -399,6 +421,7 @@ void RomFSBuildContext::Build(std::vector<RomFSSourceInfo> *out_infos) {
RomFSBuildDirectoryContext *temp = cur_dir;
cur_dir = cur_dir->next;
delete temp->path;
delete temp;
}
@@ -414,5 +437,23 @@ void RomFSBuildContext::Build(std::vector<RomFSSourceInfo> *out_infos) {
header->file_hash_table_ofs = header->dir_table_ofs + header->dir_table_size;
header->file_table_ofs = header->file_hash_table_ofs + header->file_hash_table_size;
/* For debugging, uncomment this to get a log of the generated metadata tables. */
/*
{
FsFileSystem sd_fs;
if (R_SUCCEEDED(fsMountSdcard(&sd_fs))) {
FsFile f;
fsFsCreateFile(&sd_fs, "/METADATALOG.bin", this->dir_hash_table_size + this->dir_table_size + this->file_hash_table_size + this->file_table_size + sizeof(*header), 0);
if (R_SUCCEEDED(fsFsOpenFile(&sd_fs, "/METADATALOG.bin", FS_OPEN_READ | FS_OPEN_WRITE, &f))) {
fsFileSetSize(&f, this->dir_hash_table_size + this->dir_table_size + this->file_hash_table_size + this->file_table_size + sizeof(*header));
fsFileWrite(&f, 0, header, sizeof(*header));
fsFileWrite(&f, sizeof(*header), metadata, this->dir_hash_table_size + this->dir_table_size + this->file_hash_table_size + this->file_table_size);
fsFileClose(&f);
}
fsFsClose(&sd_fs);
}
}
*/
out_infos->emplace_back(header->dir_hash_table_ofs, this->dir_hash_table_size + this->dir_table_size + this->file_hash_table_size + this->file_table_size, metadata, RomFSDataSource::Memory);
}

6
stratosphere/fs_mitm/source/fsmitm_romfsbuild.hpp
View File

@@ -138,7 +138,7 @@ static_assert(sizeof(RomFSFileEntry) == 0x20, "Incorrect RomFSFileEntry definiti
struct RomFSBuildFileContext;
struct RomFSBuildDirectoryContext {
char path[FS_MAX_PATH];
char *path;
u32 cur_path_ofs;
u32 path_len;
u32 entry_offset = 0;
@@ -150,7 +150,7 @@ struct RomFSBuildDirectoryContext {
};
struct RomFSBuildFileContext {
char path[FS_MAX_PATH];
char *path;
u32 cur_path_ofs;
u32 path_len;
u32 entry_offset = 0;
@@ -187,6 +187,8 @@ class RomFSBuildContext {
public:
RomFSBuildContext(u64 tid) : title_id(tid), root(NULL), files(NULL), num_dirs(0), num_files(0), dir_table_size(0), file_table_size(0), dir_hash_table_size(0), file_hash_table_size(0), file_partition_size(0) {
this->root = new RomFSBuildDirectoryContext({0});
this->root->path = new char[1];
this->root->path[0] = '\x00';
this->num_dirs = 1;
this->dir_table_size = 0x18;
}

2
stratosphere/fs_mitm/source/fsmitm_service.cpp
View File

@@ -18,7 +18,7 @@ Result FsMitMService::dispatch(IpcParsedCommand &r, IpcCommand &out_c, u64 cmd_i
rc = WrapIpcCommandImpl<&FsMitMService::open_data_storage_by_current_process>(this, r, out_c, pointer_buffer, pointer_buffer_size);
break;
case FspSrvCmd::OpenDataStorageByDataId:
rc = WrapIpcCommandImpl<&FsMitMService::open_data_storage_by_data_id>(this, r, out_c, pointer_buffer, pointer_buffer_size);
//rc = WrapIpcCommandImpl<&FsMitMService::open_data_storage_by_data_id>(this, r, out_c, pointer_buffer, pointer_buffer_size);
break;
default:
break;

1
stratosphere/fs_mitm/source/mitm_session.hpp
View File

@@ -130,7 +130,6 @@ class MitMSession final : public ISession<T> {
MitMSession<T> *new_sess = new MitMSession<T>((MitMServer<T> *)this->server, s_h, c_h, cur_out_r.Handles[0]);
new_sess->service_object = this->service_object;
IServiceObject *obj = this->service_object.get();
if (this->is_domain) {
new_sess->is_domain = true;