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fs.mitm: Add HANS-style redirection for System Data Archives.

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This commit is contained in:
Michael Scire
2018-06-10 11:11:05 -06:00
parent ceb93867b4
commit 5c80016c81
13 changed files with 698 additions and 26 deletions
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35
stratosphere/fs_mitm/source/fsmitm_service.cpp
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@@ -1,14 +1,25 @@
#include <switch.h>
#include "fsmitm_service.hpp"
#include "fs_shim.h"
#include "fsmitm_worker.hpp"
#include "fsmitm_utils.hpp"
#include "fsmitm_romstorage.hpp"
#include "debug.hpp"
Result FsMitMService::dispatch(IpcParsedCommand &r, IpcCommand &out_c, u64 cmd_id, u8 *pointer_buffer, size_t pointer_buffer_size) {
Result rc = 0xF601;
switch (cmd_id) {
case FspSrv_Cmd_SetCurrentProcess:
if (!this->has_initialized && r.HasPid) {
this->process_id = r.Pid;
}
break;
case FspSrv_Cmd_OpenDataStorageByDataId:
rc = WrapIpcCommandImpl<&FsMitMService::open_data_storage_by_data_id>(this, r, out_c, pointer_buffer, pointer_buffer_size);
break;
}
return rc;
}
@@ -37,4 +48,28 @@ Result FsMitMService::postprocess(IpcParsedCommand &r, IpcCommand &out_c, u64 cm
Result FsMitMService::handle_deferred() {
/* This service is never deferrable. */
return 0;
}
/* Add redirection for System Data Archives to the SD card. */
std::tuple<Result, MovedHandle> FsMitMService::open_data_storage_by_data_id(FsStorageId storage_id, u64 data_id) {
Handle out_h = 0;
FsStorage data_storage;
FsFile data_file;
Result rc = fsOpenDataStorageByDataId(this->forward_service, storage_id, data_id, &data_storage);
if (R_SUCCEEDED(rc)) {
IPCSession<IStorageInterface> *out_session = NULL;
char path[FS_MAX_PATH] = {0};
/* TODO: Is there a sensible path that ends in ".romfs" we can use?" */
snprintf(path, sizeof(path), "/atmosphere/titles/%016lx/romfs.bin", data_id);
if (R_SUCCEEDED(Utils::OpenSdFile(path, FS_OPEN_READ, &data_file))) {
fsStorageClose(&data_storage);
out_session = new IPCSession<IStorageInterface>(new IStorageInterface(new RomFileStorage(data_file)));
} else {
out_session = new IPCSession<IStorageInterface>(new IStorageInterface(new RomInterfaceStorage(data_storage)));
}
FsMitmWorker::AddWaitable(out_session);
out_h = out_session->get_client_handle();
}
return {rc, out_h};
}