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fs.mitm: WIP LayeredFS impl (NOTE: UNUSABLE ATM)

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Also greatly refactors libstratosphere, and does a lot of other things.
There is a lot of code in this one.
This commit is contained in:
Michael Scire
2018-06-14 17:50:01 -06:00
parent 82b248aeac
commit c2d9ac8f5c
56 changed files with 1615 additions and 243 deletions
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11
stratosphere/fs_mitm/source/debug.cpp
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@@ -1,17 +1,14 @@
#include <switch.h>
#include <stratosphere.hpp>
#include <cstring>
#include "debug.hpp"
static u64 g_num_logged = 0;
#define MAX_LOGS U64_MAX
void Reboot() {
while (1) {
/* ... */
}
/* ... */
}
void Log(const void *data, int size) {
(void)(data);
(void)(size);
/* ... */
}

12
stratosphere/fs_mitm/source/fs_istorage.hpp
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@@ -22,7 +22,7 @@ class IStorage {
virtual IStorage *Clone() = 0;
virtual Result Read(void *buffer, size_t size, u64 offset, u64 *out_read_size) = 0;
virtual Result Read(void *buffer, size_t size, u64 offset) = 0;
virtual Result Write(void *buffer, size_t size, u64 offset) = 0;
virtual Result Flush() = 0;
virtual Result SetSize(u64 size) = 0;
@@ -81,10 +81,8 @@ class IStorageInterface : public IServiceObject {
};
private:
/* Actual command API. */
virtual std::tuple<Result, u64> read(OutBuffer<u8, BufferType_Type1> buffer, u64 offset, u64 size) final {
u64 out_size = 0;
Result rc = this->base_storage->Read(buffer.buffer, std::min(buffer.num_elements, size), offset , &out_size);
return {rc, out_size};
virtual std::tuple<Result> read(OutBuffer<u8, BufferType_Type1> buffer, u64 offset, u64 size) final {
return {this->base_storage->Read(buffer.buffer, std::min(buffer.num_elements, size), offset)};
};
virtual std::tuple<Result> write(InBuffer<u8, BufferType_Type1> buffer, u64 offset, u64 size) final {
return {this->base_storage->Write(buffer.buffer, std::min(buffer.num_elements, size), offset)};
@@ -109,8 +107,8 @@ class IStorageInterface : public IServiceObject {
};
class IROStorage : public IStorage {
protected:
virtual Result Read(void *buffer, size_t size, u64 offset, u64 *out_read_size) = 0;
public:
virtual Result Read(void *buffer, size_t size, u64 offset) = 0;
Result Write(void *buffer, size_t size, u64 offset) final {
(void)(buffer);
(void)(offset);

71
stratosphere/fs_mitm/source/fs_shim.c
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@@ -43,6 +43,77 @@ Result ipcCopyFromDomain(Handle session, u32 object_id, Service *out) {
/* Missing fsp-srv commands. */
Result fsOpenDataStorageByCurrentProcessFwd(Service* s, FsStorage* out) {
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
} *raw;
raw = ipcPrepareHeader(&c, sizeof(*raw));
raw->magic = SFCI_MAGIC;
raw->cmd_id = 200;
Result rc = serviceIpcDispatch(s);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct {
u64 magic;
u64 result;
} *resp = r.Raw;
rc = resp->result;
if (R_SUCCEEDED(rc)) {
serviceCreate(&out->s, r.Handles[0]);
}
}
return rc;
}
Result fsOpenDataStorageByCurrentProcessFromDomainFwd(Service* s, u32 *out_object_id) {
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
} *raw;
raw = ipcPrepareHeaderForDomain(&c, sizeof(*raw), s->object_id);
raw->magic = SFCI_MAGIC;
raw->cmd_id = 200;
Result rc = serviceIpcDispatch(s);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParseForDomain(&r);
struct {
u64 magic;
u64 result;
u32 object_id;
} *resp = r.Raw;
rc = resp->result;
if (R_SUCCEEDED(rc)) {
*out_object_id = resp->object_id;
}
}
return rc;
}
Result fsOpenDataStorageByDataId(Service* s, FsStorageId storage_id, u64 data_id, FsStorage* out) {
IpcCommand c;
ipcInitialize(&c);

2
stratosphere/fs_mitm/source/fs_shim.h
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@@ -20,6 +20,8 @@ typedef struct {
Result ipcCopyFromDomain(Handle session, u32 object_id, Service *out);
/* Missing fsp-srv commands. */
Result fsOpenDataStorageByCurrentProcessFwd(Service* s, FsStorage* out);
Result fsOpenDataStorageByCurrentProcessFromDomainFwd(Service* s, u32 *out_object_id);
Result fsOpenDataStorageByDataId(Service* s, FsStorageId storage_id, u64 data_id, FsStorage* out);
Result fsOpenDataStorageByDataIdFromDomain(Service* s, FsStorageId storage_id, u64 data_id, u32 *out_object_id);

135
stratosphere/fs_mitm/source/fsmitm_layeredrom.cpp Normal file
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@@ -0,0 +1,135 @@
#include <switch.h>
#include <stratosphere.hpp>
#include "fsmitm_layeredrom.hpp"
#include "fsmitm_utils.hpp"
#include "debug.hpp"
LayeredRomFS::LayeredRomFS(std::shared_ptr<RomInterfaceStorage> s_r, std::shared_ptr<RomFileStorage> f_r, u64 tid) : storage_romfs(s_r), file_romfs(f_r), title_id(tid) {
/* Start building the new virtual romfs. */
RomFSBuildContext build_ctx(this->title_id);
this->p_source_infos = std::shared_ptr<std::vector<RomFSSourceInfo>>(new std::vector<RomFSSourceInfo>(), [](std::vector<RomFSSourceInfo> *to_delete) {
for (unsigned int i = 0; i < to_delete->size(); i++) {
(*to_delete)[i].Cleanup();
}
delete to_delete;
});
if (Utils::IsSdInitialized()) {
build_ctx.MergeSdFiles();
}
if (this->file_romfs) {
build_ctx.MergeRomStorage(this->file_romfs.get(), RomFSDataSource_FileRomFS);
}
if (this->storage_romfs) {
build_ctx.MergeRomStorage(this->storage_romfs.get(), RomFSDataSource_BaseRomFS);
}
build_ctx.Build(this->p_source_infos.get());
}
LayeredRomFS::~LayeredRomFS() {
/* ... */
}
Result LayeredRomFS::Read(void *buffer, size_t size, u64 offset) {
/* Validate size. */
u64 virt_size = (*this->p_source_infos)[this->p_source_infos->size() - 1].virtual_offset + (*this->p_source_infos)[this->p_source_infos->size() - 1].size;
if (offset >= virt_size) {
return 0x2F5A02;
}
if (virt_size - offset < size) {
size = virt_size - offset;
}
/* Find first source info via binary search. */
u32 cur_source_ind = 0;
u32 low = 0, high = this->p_source_infos->size() - 1;
while (low <= high) {
u32 mid = (low + high) / 2;
if ((*this->p_source_infos)[mid].virtual_offset > offset) {
/* Too high. */
high = mid - 1;
} else {
/* sources[mid].virtual_offset <= offset, invariant */
if (mid == this->p_source_infos->size() - 1 || (*this->p_source_infos)[mid + 1].virtual_offset > offset) {
/* Success */
cur_source_ind = mid;
break;
}
low = mid + 1;
}
}
Result rc;
size_t read_so_far = 0;
while (read_so_far < size) {
RomFSSourceInfo *cur_source = &((*this->p_source_infos)[cur_source_ind]);
if (cur_source->virtual_offset + cur_source->size > offset) {
u64 cur_read_size = size - read_so_far;
if (cur_read_size > cur_source->size - (offset - cur_source->virtual_offset)) {
cur_read_size = cur_source->size - (offset - cur_source->virtual_offset);
}
switch (cur_source->type) {
case RomFSDataSource_LooseFile:
{
FsFile file;
if (R_FAILED((rc = Utils::OpenRomFSSdFile(this->title_id, cur_source->loose_source_info.path, FS_OPEN_READ, &file)))) {
fatalSimple(rc);
}
size_t out_read;
if (R_FAILED((rc = fsFileRead(&file, (offset - cur_source->virtual_offset), (void *)((uintptr_t)buffer + read_so_far), cur_read_size, &out_read)))) {
fatalSimple(rc);
}
if (out_read != cur_read_size) {
Reboot();
}
fsFileClose(&file);
}
break;
case RomFSDataSource_Memory:
{
memcpy((void *)((uintptr_t)buffer + read_so_far), cur_source->memory_source_info.data + (offset - cur_source->virtual_offset), cur_read_size);
}
break;
case RomFSDataSource_BaseRomFS:
{
if (R_FAILED((rc = this->storage_romfs->Read((void *)((uintptr_t)buffer + read_so_far), cur_read_size, cur_source->base_source_info.offset + (offset - cur_source->virtual_offset))))) {
/* TODO: Can this ever happen? */
/* fatalSimple(rc); */
return rc;
}
}
break;
case RomFSDataSource_FileRomFS:
{
if (R_FAILED((rc = this->file_romfs->Read((void *)((uintptr_t)buffer + read_so_far), cur_read_size, cur_source->base_source_info.offset + (offset - cur_source->virtual_offset))))) {
fatalSimple(rc);
}
}
break;
default:
fatalSimple(0xF601);
}
read_so_far += cur_read_size;
} else {
/* Handle padding explicitly. */
cur_source_ind++;
/* Zero out the padding we skip, here. */
memset((void *)((uintptr_t)buffer + read_so_far), 0, ((*this->p_source_infos)[cur_source_ind]).virtual_offset - (cur_source->virtual_offset + cur_source->size));
read_so_far += ((*this->p_source_infos)[cur_source_ind]).virtual_offset - (cur_source->virtual_offset + cur_source->size);
}
}
return 0;
}
Result LayeredRomFS::GetSize(u64 *out_size) {
*out_size = (*this->p_source_infos)[this->p_source_infos->size() - 1].virtual_offset + (*this->p_source_infos)[this->p_source_infos->size() - 1].size;
return 0x0;
}
Result LayeredRomFS::OperateRange(u32 operation_type, u64 offset, u64 size, FsRangeInfo *out_range_info) {
/* TODO: How should I implement this for a virtual romfs? */
if (operation_type == 3) {
*out_range_info = {0};
}
return 0;
}

31
stratosphere/fs_mitm/source/fsmitm_layeredrom.hpp Normal file
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@@ -0,0 +1,31 @@
#pragma once
#include <switch.h>
#include <stratosphere.hpp>
#include "fsmitm_romstorage.hpp"
#include "fsmitm_romfsbuild.hpp"
#include "fsmitm_utils.hpp"
/* Represents a merged RomFS. */
class LayeredRomFS : public IROStorage {
private:
/* Data Sources. */
std::shared_ptr<RomInterfaceStorage> storage_romfs;
std::shared_ptr<RomFileStorage> file_romfs;
/* Information about the merged RomFS. */
u64 title_id;
std::shared_ptr<std::vector<RomFSSourceInfo>> p_source_infos;
LayeredRomFS *Clone() override {
return new LayeredRomFS(*this);
};
public:
LayeredRomFS(std::shared_ptr<RomInterfaceStorage> s_r, std::shared_ptr<RomFileStorage> f_r, u64 tid);
virtual ~LayeredRomFS();
Result Read(void *buffer, size_t size, u64 offset) override;
Result GetSize(u64 *out_size) override;
Result OperateRange(u32 operation_type, u64 offset, u64 size, FsRangeInfo *out_range_info) override;
};

18
stratosphere/fs_mitm/source/fsmitm_main.cpp
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@@ -12,7 +12,7 @@
#include "fsmitm_service.hpp"
#include "fsmitm_worker.hpp"
#include "mitm_service.hpp"
#include "mitm_query_service.hpp"
extern "C" {
extern u32 __start__;
@@ -64,11 +64,6 @@ void __appInit(void) {
fatalSimple(0xCAFE << 4 | 3);
}
rc = pminfoInitialize();
if (R_FAILED(rc)) {
fatalSimple(0xCAFE << 4 | 4);
}
/* Check for exosphere API compatibility. */
u64 exosphere_cfg;
if (R_SUCCEEDED(splGetConfig((SplConfigItem)65000, &exosphere_cfg))) {
@@ -96,7 +91,7 @@ int main(int argc, char **argv)
Thread worker_thread = {0};
consoleDebugInit(debugDevice_SVC);
if (R_FAILED(threadCreate(&worker_thread, &FsMitmWorker::Main, NULL, 0x8000, 45, 0))) {
if (R_FAILED(threadCreate(&worker_thread, &FsMitMWorker::Main, NULL, 0x20000, 45, 0))) {
/* TODO: Panic. */
}
if (R_FAILED(threadStart(&worker_thread))) {
@@ -104,11 +99,14 @@ int main(int argc, char **argv)
}
/* TODO: What's a good timeout value to use here? */
WaitableManager *server_manager = new WaitableManager(U64_MAX);
MultiThreadedWaitableManager *server_manager = new MultiThreadedWaitableManager(1, U64_MAX, 0x20000);
//WaitableManager *server_manager = new WaitableManager(U64_MAX);
/* Create fsp-srv mitm. */
//server_manager->add_waitable(new MitMServer<FsMitMService>("fsp-srv", 61));
server_manager->add_waitable(new MitMServer<GenericMitMService>("fsp-srv", 61));
ISession<MitMQueryService<FsMitMService>> *fs_query_srv = NULL;
MitMServer<FsMitMService> *fs_srv = new MitMServer<FsMitMService>(&fs_query_srv, "fsp-srv", 61);
server_manager->add_waitable(fs_srv);
server_manager->add_waitable(fs_query_srv);
/* Loop forever, servicing our services. */
server_manager->process();

420
stratosphere/fs_mitm/source/fsmitm_romfsbuild.cpp Normal file
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@@ -0,0 +1,420 @@
#include <switch.h>
#include <string.h>
#include <stratosphere.hpp>
#include "fsmitm_utils.hpp"
#include "fsmitm_romfsbuild.hpp"
#include "debug.hpp"
void RomFSBuildContext::VisitDirectory(FsFileSystem *filesys, RomFSBuildDirectoryContext *parent) {
FsDir dir;
Result rc;
/* Open the current parent directory. */
if (R_FAILED((rc = Utils::OpenRomFSDir(filesys, this->title_id, parent->path, &dir)))) {
fatalSimple(rc);
}
u64 read_entries;
while (R_SUCCEEDED((rc = fsDirRead(&dir, 0, &read_entries, 1, &this->dir_entry))) && read_entries == 1) {
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)) {
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;
}
} 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)) {
fatalSimple(0xF601);
}
strcat(child->path + parent->path_len, "/");
strcat(child->path + parent->path_len, this->dir_entry.name);
child->source = this->cur_source_type;
child->size = this->dir_entry.fileSize;
if (!this->AddFile(parent, child)) {
delete child;
}
} else {
fatalSimple(rc);
}
}
fsDirClose(&dir);
RomFSBuildDirectoryContext *cur_child = parent->child;
while (cur_child != NULL) {
this->VisitDirectory(filesys, cur_child);
cur_child = cur_child->sibling;
}
}
void RomFSBuildContext::MergeSdFiles() {
FsFileSystem sd_filesystem;
FsDir dir;
if (!Utils::IsSdInitialized()) {
return;
}
if (R_FAILED((Utils::OpenSdDirForAtmosphere(this->title_id, "/romfs", &dir)))) {
return;
}
fsDirClose(&dir);
if (R_FAILED(fsMountSdcard(&sd_filesystem))) {
return;
}
this->cur_source_type = RomFSDataSource_LooseFile;
this->VisitDirectory(&sd_filesystem, this->root);
fsFsClose(&sd_filesystem);
}
void RomFSBuildContext::VisitDirectory(RomFSBuildDirectoryContext *parent, u32 parent_offset, void *dir_table, size_t dir_table_size, void *file_table, size_t file_table_size) {
RomFSDirectoryEntry *parent_entry = romfs_get_direntry(dir_table, parent_offset);
if (parent_entry->file != ROMFS_ENTRY_EMPTY) {
RomFSFileEntry *cur_file = romfs_get_fentry(file_table, parent_entry->file);
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)) {
fatalSimple(0xF601);
}
strcat(child->path + parent->path_len, "/");
strncat(child->path + parent->path_len, cur_file->name, cur_file->name_size);
child->size = cur_file->size;
child->source = this->cur_source_type;
child->orig_offset = cur_file->offset;
if (!this->AddFile(parent, child)) {
delete child;
}
if (cur_file->sibling == ROMFS_ENTRY_EMPTY) {
cur_file = NULL;
} else {
cur_file = romfs_get_fentry(file_table, cur_file->sibling);
}
}
}
if (parent_entry->child != ROMFS_ENTRY_EMPTY) {
RomFSDirectoryEntry *cur_child = romfs_get_direntry(dir_table, parent_entry->child);
u32 cur_child_offset = parent_entry->child;
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)) {
fatalSimple(0xF601);
}
strcat(child->path + parent->path_len, "/");
strncat(child->path + parent->path_len, cur_child->name, cur_child->name_size);
RomFSBuildDirectoryContext *real = NULL;
if (!this->AddDirectory(parent, child, &real)) {
delete child;
}
if (real == NULL) {
fatalSimple(0xF601);
}
this->VisitDirectory(real, cur_child_offset, dir_table, dir_table_size, file_table, file_table_size);
if (cur_child->sibling == ROMFS_ENTRY_EMPTY) {
cur_child = NULL;
} else {
cur_child_offset = cur_child->sibling;
cur_child = romfs_get_direntry(dir_table, cur_child->sibling);
}
}
}
}
void RomFSBuildContext::MergeRomStorage(IROStorage *storage, RomFSDataSource source) {
Result rc;
RomFSHeader header;
if (R_FAILED((rc = storage->Read(&header, sizeof(header), 0)))) {
fatalSimple(rc);
}
if (header.header_size != sizeof(header)) {
/* what */
return;
}
/* Read tables. */
u8 *dir_table = new u8[header.dir_table_size];
u8 *file_table = new u8[header.file_table_size];
if (R_FAILED((rc = storage->Read(dir_table, header.dir_table_size, header.dir_table_ofs)))) {
fatalSimple(rc);
}
if (R_FAILED((rc = storage->Read(file_table, header.file_table_size, header.file_table_ofs)))) {
fatalSimple(rc);
}
this->cur_source_type = source;
this->VisitDirectory(this->root, 0x0, dir_table, (size_t)header.dir_table_size, file_table, (size_t)header.file_table_size);
delete dir_table;
delete file_table;
}
bool RomFSBuildContext::AddDirectory(RomFSBuildDirectoryContext *parent_dir_ctx, RomFSBuildDirectoryContext *dir_ctx, RomFSBuildDirectoryContext **out_dir_ctx) {
/* Ordered insertion on child. */
int cmp_val;
if (parent_dir_ctx->child == NULL || (cmp_val = strcmp(dir_ctx->path, parent_dir_ctx->child->path)) < 0) {
dir_ctx->sibling = parent_dir_ctx->child;
parent_dir_ctx->child = dir_ctx;
} else if (cmp_val == 0) {
/* This directory already exists! */
if (out_dir_ctx) {
*out_dir_ctx = parent_dir_ctx->child;
}
return false;
} else {
RomFSBuildDirectoryContext *child, *prev;
prev = parent_dir_ctx->child;
child = prev->sibling;
while (child != NULL) {
cmp_val = strcmp(dir_ctx->path, child->path);
if (cmp_val < 0) {
break;
} else if (cmp_val == 0) {
/* This directory already exists! */
if (out_dir_ctx) {
*out_dir_ctx = child;
}
return false;
}
prev = child;
child = child->sibling;
}
prev->sibling = dir_ctx;
dir_ctx->sibling = child;
}
/* If we got this far, we're definitely adding a new directory. */
this->num_dirs++;
this->dir_table_size += sizeof(RomFSDirectoryEntry) + ((dir_ctx->path_len - dir_ctx->cur_path_ofs + 3) & ~3);
dir_ctx->parent = parent_dir_ctx;
/* Ordered insertion on next */
RomFSBuildDirectoryContext *cur = parent_dir_ctx->next, *prev = parent_dir_ctx;
while (cur != NULL) {
if (strcmp(dir_ctx->path, cur->path) < 0) {
break;
}
prev = cur;
cur = cur->next;
}
prev->next = dir_ctx;
dir_ctx->next = cur;
if (out_dir_ctx) {
*out_dir_ctx = dir_ctx;
}
return true;
}
bool RomFSBuildContext::AddFile(RomFSBuildDirectoryContext *parent_dir_ctx, RomFSBuildFileContext *file_ctx) {
/* Ordered insertion on sibling */
int cmp_val;
if (parent_dir_ctx->file == NULL || (cmp_val = strcmp(file_ctx->path, parent_dir_ctx->file->path)) < 0) {
file_ctx->sibling = parent_dir_ctx->file;
parent_dir_ctx->file = file_ctx;
} else if (cmp_val == 0) {
/* This file already exists! */
return false;
} else {
RomFSBuildFileContext *child, *prev;
prev = parent_dir_ctx->file;
child = prev->sibling;
while (child != NULL) {
cmp_val = strcmp(file_ctx->path, child->path);
if (cmp_val < 0) {
break;
} else if (cmp_val == 0) {
/* This directory already exists! */
return false;
}
prev = child;
child = child->sibling;
}
prev->sibling = file_ctx;
file_ctx->sibling = child;
}
/* If we got this far, we're definitely adding a new file. */
this->num_files++;
this->file_table_size += sizeof(RomFSFileEntry) + ((file_ctx->path_len - file_ctx->cur_path_ofs + 3) & ~3);
file_ctx->parent = parent_dir_ctx;
/* Ordered insertion on next */
if (this->files == NULL || strcmp(file_ctx->path, this->files->path) < 0) {
file_ctx->next = this->files;
this->files = file_ctx;
} else {
RomFSBuildFileContext *cur = this->files->next, *prev = this->files;
while (cur != NULL) {
if (strcmp(file_ctx->path, cur->path) < 0) {
break;
}
prev = cur;
cur = cur->next;
}
prev->next = file_ctx;
file_ctx->next = cur;
}
return true;
}
void RomFSBuildContext::Build(std::vector<RomFSSourceInfo> *out_infos) {
RomFSBuildFileContext *cur_file;
RomFSBuildDirectoryContext *cur_dir;
u32 entry_offset;
u32 dir_hash_table_entry_count = romfs_get_hash_table_count(this->num_dirs);
u32 file_hash_table_entry_count = romfs_get_hash_table_count(this->num_files);
this->dir_hash_table_size = 4 * dir_hash_table_entry_count;
this->file_hash_table_size = 4 * file_hash_table_entry_count;
/* Assign metadata pointers */
RomFSHeader *header = new RomFSHeader({0});
u8 *metadata = new u8[this->dir_hash_table_size + this->dir_table_size + this->file_hash_table_size + this->file_table_size];
u32 *dir_hash_table = (u32 *)((uintptr_t)metadata);
RomFSDirectoryEntry *dir_table = (RomFSDirectoryEntry *)((uintptr_t)dir_hash_table + this->dir_hash_table_size);
u32 *file_hash_table = (u32 *)((uintptr_t)dir_table + this->dir_table_size);
RomFSFileEntry *file_table = (RomFSFileEntry *)((uintptr_t)file_hash_table + this->file_hash_table_size);
/* Clear out hash tables. */
for (u32 i = 0; i < dir_hash_table_entry_count; i++) {
dir_hash_table[i] = ROMFS_ENTRY_EMPTY;
}
for (u32 i = 0; i < file_hash_table_entry_count; i++) {
file_hash_table[i] = ROMFS_ENTRY_EMPTY;
}
out_infos->clear();
out_infos->push_back(RomFSSourceInfo(0, sizeof(*header), header, RomFSDataSource_Memory));
/* Determine file offsets. */
cur_file = this->files;
entry_offset = 0;
while (cur_file != NULL) {
this->file_partition_size = (this->file_partition_size + 0xFULL) & ~0xFULL;
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);
cur_file = cur_file->next;
}
/* Determine directory offsets. */
cur_dir = this->root;
entry_offset = 0;
while (cur_dir != NULL) {
cur_dir->entry_offset = entry_offset;
entry_offset += sizeof(RomFSDirectoryEntry) + ((cur_dir->path_len - cur_dir->cur_path_ofs + 3) & ~3);
cur_dir = cur_dir->next;
}
/* Populate file tables. */
cur_file = this->files;
while (cur_file != NULL) {
RomFSFileEntry *cur_entry = romfs_get_fentry(file_table, cur_file->entry_offset);
cur_entry->parent = cur_file->parent->entry_offset;
cur_entry->sibling = (cur_file->sibling == NULL) ? ROMFS_ENTRY_EMPTY : cur_file->sibling->entry_offset;
cur_entry->offset = cur_file->offset;
cur_entry->size = cur_file->size;
u32 name_size = cur_file->path_len - cur_file->cur_path_ofs;
u32 hash = romfs_calc_path_hash(cur_file->parent->entry_offset, (unsigned char *)cur_file->path + cur_file->cur_path_ofs, 0, name_size);
cur_entry->hash = file_hash_table[hash % file_hash_table_entry_count];
file_hash_table[hash % file_hash_table_entry_count] = cur_file->entry_offset;
cur_entry->name_size = name_size;
memset(cur_entry->name, 0, (cur_entry->name_size + 3) & ~3);
memcpy(cur_entry->name, cur_file->path + cur_file->cur_path_ofs, name_size);
switch (cur_file->source) {
case RomFSDataSource_BaseRomFS:
case RomFSDataSource_FileRomFS:
/* Try to compact, if possible. */
if (out_infos->back().type == cur_file->source) {
out_infos->back().size = cur_file->offset + ROMFS_FILEPARTITION_OFS + cur_file->size - out_infos->back().virtual_offset;
} else {
out_infos->push_back(RomFSSourceInfo(cur_file->offset + ROMFS_FILEPARTITION_OFS, cur_file->size, cur_file->orig_offset + ROMFS_FILEPARTITION_OFS, cur_file->source));
}
break;
case RomFSDataSource_LooseFile:
{
char *path = new char[cur_file->path_len + 1];
strcpy(path, cur_file->path);
out_infos->push_back(RomFSSourceInfo(cur_file->offset + ROMFS_FILEPARTITION_OFS, cur_file->size, path, cur_file->source));
}
break;
default:
fatalSimple(0xF601);
}
RomFSBuildFileContext *temp = cur_file;
cur_file = cur_file->next;
delete temp;
}
/* Populate dir tables. */
cur_dir = this->root;
while (cur_dir != NULL) {
RomFSDirectoryEntry *cur_entry = romfs_get_direntry(dir_table, cur_dir->entry_offset);
cur_entry->parent = cur_dir == this->root ? 0 : cur_dir->parent->entry_offset;
cur_entry->sibling = (cur_dir->sibling == NULL) ? ROMFS_ENTRY_EMPTY : cur_dir->sibling->entry_offset;
cur_entry->child = (cur_dir->child == NULL) ? ROMFS_ENTRY_EMPTY : cur_dir->child->entry_offset;
cur_entry->file = (cur_dir->file == NULL) ? ROMFS_ENTRY_EMPTY : cur_dir->file->entry_offset;
u32 name_size = cur_dir->path_len - cur_dir->cur_path_ofs;
u32 hash = romfs_calc_path_hash(cur_dir == this->root ? 0 : cur_dir->parent->entry_offset, (unsigned char *)cur_dir->path + cur_dir->cur_path_ofs, 0, name_size);
cur_entry->hash = dir_hash_table[hash % dir_hash_table_entry_count];
dir_hash_table[hash % dir_hash_table_entry_count] = cur_dir->entry_offset;
cur_entry->name_size = name_size;
memset(cur_entry->name, 0, (cur_entry->name_size + 3) & ~3);
memcpy(cur_entry->name, cur_dir->path + cur_dir->cur_path_ofs, name_size);
RomFSBuildDirectoryContext *temp = cur_dir;
cur_dir = cur_dir->next;
delete temp;
}
/* Set header fields. */
header->header_size = sizeof(*header);
header->file_hash_table_size = this->file_hash_table_size;
header->file_table_size = this->file_table_size;
header->dir_hash_table_size = this->dir_hash_table_size;
header->dir_table_size = this->dir_table_size;
header->file_partition_ofs = ROMFS_FILEPARTITION_OFS;
header->dir_hash_table_ofs = (header->file_partition_ofs + this->file_partition_size + 3ULL) & ~3ULL;
header->dir_table_ofs = header->dir_hash_table_ofs + header->dir_hash_table_size;
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;
out_infos->push_back(RomFSSourceInfo(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));
}

228
stratosphere/fs_mitm/source/fsmitm_romfsbuild.hpp Normal file
View File

@@ -0,0 +1,228 @@
#pragma once
#include <switch.h>
#include "fsmitm_romstorage.hpp"
#define ROMFS_ENTRY_EMPTY 0xFFFFFFFF
#define ROMFS_FILEPARTITION_OFS 0x200
/* Types for RomFS Meta construction. */
enum RomFSDataSource {
RomFSDataSource_BaseRomFS,
RomFSDataSource_FileRomFS,
RomFSDataSource_LooseFile,
RomFSDataSource_Memory,
};
struct RomFSBaseSourceInfo {
u64 offset;
};
struct RomFSFileSourceInfo {
u64 offset;
};
struct RomFSLooseSourceInfo {
const char *path;
};
struct RomFSMemorySourceInfo {
const u8 *data;
};
struct RomFSSourceInfo {
u64 virtual_offset;
u64 size;
union {
RomFSBaseSourceInfo base_source_info;
RomFSFileSourceInfo file_source_info;
RomFSLooseSourceInfo loose_source_info;
RomFSMemorySourceInfo memory_source_info;
};
RomFSDataSource type;
RomFSSourceInfo(u64 v_o, u64 s, u64 offset, RomFSDataSource t) : virtual_offset(v_o), size(s), type(t) {
switch (this->type) {
case RomFSDataSource_BaseRomFS:
this->base_source_info.offset = offset;
break;
case RomFSDataSource_FileRomFS:
this->file_source_info.offset = offset;
break;
case RomFSDataSource_LooseFile:
case RomFSDataSource_Memory:
default:
fatalSimple(0xF601);
}
}
RomFSSourceInfo(u64 v_o, u64 s, const void *arg, RomFSDataSource t) : virtual_offset(v_o), size(s), type(t) {
switch (this->type) {
case RomFSDataSource_LooseFile:
this->loose_source_info.path = (decltype(this->loose_source_info.path))arg;
break;
case RomFSDataSource_Memory:
this->memory_source_info.data = (decltype(this->memory_source_info.data))arg;
break;
case RomFSDataSource_BaseRomFS:
case RomFSDataSource_FileRomFS:
default:
fatalSimple(0xF601);
}
}
void Cleanup() {
switch (this->type) {
case RomFSDataSource_BaseRomFS:
case RomFSDataSource_FileRomFS:
break;
case RomFSDataSource_LooseFile:
delete this->loose_source_info.path;
break;
case RomFSDataSource_Memory:
delete this->memory_source_info.data;
break;
default:
fatalSimple(0xF601);
}
}
static bool Compare(RomFSSourceInfo *a, RomFSSourceInfo *b) {
return (a->virtual_offset < b->virtual_offset);
}
};
/* Types for building a RomFS. */
struct RomFSHeader {
u64 header_size;
u64 dir_hash_table_ofs;
u64 dir_hash_table_size;
u64 dir_table_ofs;
u64 dir_table_size;
u64 file_hash_table_ofs;
u64 file_hash_table_size;
u64 file_table_ofs;
u64 file_table_size;
u64 file_partition_ofs;
};
static_assert(sizeof(RomFSHeader) == 0x50, "Incorrect RomFS Header definition!");
struct RomFSDirectoryEntry {
u32 parent;
u32 sibling;
u32 child;
u32 file;
u32 hash;
u32 name_size;
char name[];
};
static_assert(sizeof(RomFSDirectoryEntry) == 0x18, "Incorrect RomFSDirectoryEntry definition!");
struct RomFSFileEntry {
u32 parent;
u32 sibling;
u64 offset;
u64 size;
u32 hash;
u32 name_size;
char name[];
};
static_assert(sizeof(RomFSFileEntry) == 0x20, "Incorrect RomFSFileEntry definition!");
struct RomFSBuildFileContext;
struct RomFSBuildDirectoryContext {
char path[FS_MAX_PATH];
u32 cur_path_ofs;
u32 path_len;
u32 entry_offset;
RomFSBuildDirectoryContext *parent;
RomFSBuildDirectoryContext *child;
RomFSBuildDirectoryContext *sibling;
RomFSBuildFileContext *file;
RomFSBuildDirectoryContext *next;
};
struct RomFSBuildFileContext {
char path[FS_MAX_PATH];
u32 cur_path_ofs;
u32 path_len;
u32 entry_offset;
u64 offset;
u64 size;
RomFSBuildDirectoryContext *parent;
RomFSBuildFileContext *sibling;
RomFSBuildFileContext *next;
RomFSDataSource source;
u64 orig_offset;
};
class RomFSBuildContext {
private:
u64 title_id;
RomFSBuildDirectoryContext *root;
RomFSBuildFileContext *files;
u64 num_dirs;
u64 num_files;
u64 dir_table_size;
u64 file_table_size;
u64 dir_hash_table_size;
u64 file_hash_table_size;
u64 file_partition_size;
FsDirectoryEntry dir_entry;
RomFSDataSource cur_source_type;
void VisitDirectory(FsFileSystem *filesys, RomFSBuildDirectoryContext *parent);
void VisitDirectory(RomFSBuildDirectoryContext *parent, u32 parent_offset, void *dir_table, size_t dir_table_size, void *file_table, size_t file_table_size);
bool AddDirectory(RomFSBuildDirectoryContext *parent_dir_ctx, RomFSBuildDirectoryContext *dir_ctx, RomFSBuildDirectoryContext **out_dir_ctx);
bool AddFile(RomFSBuildDirectoryContext *parent_dir_ctx, RomFSBuildFileContext *file_ctx);
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->num_dirs = 1;
this->dir_table_size = 0x18;
}
void MergeSdFiles();
void MergeRomStorage(IROStorage *storage, RomFSDataSource source);
/* This finalizes the context. */
void Build(std::vector<RomFSSourceInfo> *out_infos);
};
static inline RomFSDirectoryEntry *romfs_get_direntry(void *directories, uint32_t offset) {
return (RomFSDirectoryEntry *)((uintptr_t)directories + offset);
}
static inline RomFSFileEntry *romfs_get_fentry(void *files, uint32_t offset) {
return (RomFSFileEntry *)((uintptr_t)files + offset);
}
static inline uint32_t romfs_calc_path_hash(uint32_t parent, const unsigned char *path, uint32_t start, size_t path_len) {
uint32_t hash = parent ^ 123456789;
for (uint32_t i = 0; i < path_len; i++) {
hash = (hash >> 5) | (hash << 27);
hash ^= path[start + i];
}
return hash;
}
static inline uint32_t romfs_get_hash_table_count(uint32_t num_entries) {
if (num_entries < 3) {
return 3;
} else if (num_entries < 19) {
return num_entries | 1;
}
uint32_t count = num_entries;
while (count % 2 == 0 || count % 3 == 0 || count % 5 == 0 || count % 7 == 0 || count % 11 == 0 || count % 13 == 0 || count % 17 == 0) {
count++;
}
return count;
}

24
stratosphere/fs_mitm/source/fsmitm_romstorage.hpp
View File

@@ -23,12 +23,12 @@ class RomFileStorage : public IROStorage {
RomFileStorage *Clone() override {
return new RomFileStorage(this->base_file);
};
protected:
Result Read(void *buffer, size_t size, u64 offset, u64 *out_read_size) override {
public:
Result Read(void *buffer, size_t size, u64 offset) override {
size_t out_sz = 0;
Result rc = fsFileRead(this->base_file, offset, buffer, size, &out_sz);
if (R_SUCCEEDED(rc)) {
*out_read_size = out_sz;
if (R_SUCCEEDED(rc) && out_sz != size && out_sz) {
return this->Read((void *)((uintptr_t)buffer + out_sz), size - out_sz, offset + out_sz);
}
return rc;
};
@@ -36,7 +36,7 @@ class RomFileStorage : public IROStorage {
return fsFileGetSize(this->base_file, out_size);
};
Result OperateRange(u32 operation_type, u64 offset, u64 size, FsRangeInfo *out_range_info) override {
/* TODO: Merge into libnx. */
/* TODO: Merge into libnx? */
return fsFileOperateRange(this->base_file, operation_type, offset, size, out_range_info);
};
};
@@ -60,20 +60,16 @@ class RomInterfaceStorage : public IROStorage {
RomInterfaceStorage *Clone() override {
return new RomInterfaceStorage(this->base_storage);
};
protected:
Result Read(void *buffer, size_t size, u64 offset, u64 *out_read_size) override {
Result rc = fsStorageRead(this->base_storage, offset, buffer, size);
if (R_SUCCEEDED(rc)) {
*out_read_size = size;
}
return rc;
public:
Result Read(void *buffer, size_t size, u64 offset) override {
return fsStorageRead(this->base_storage, offset, buffer, size);
};
Result GetSize(u64 *out_size) override {
/* TODO: Merge into libnx. */
/* TODO: Merge into libnx? */
return fsStorageGetSize(this->base_storage, out_size);
};
Result OperateRange(u32 operation_type, u64 offset, u64 size, FsRangeInfo *out_range_info) override {
/* TODO: Merge into libnx. */
/* TODO: Merge into libnx? */
return fsStorageOperateRange(this->base_storage, operation_type, offset, size, out_range_info);
};
};

92
stratosphere/fs_mitm/source/fsmitm_service.cpp
View File

@@ -5,21 +5,28 @@
#include "fsmitm_worker.hpp"
#include "fsmitm_utils.hpp"
#include "fsmitm_romstorage.hpp"
#include "fsmitm_layeredrom.hpp"
#include "mitm_query_service.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;
if (this->has_initialized) {
switch (cmd_id) {
case FspSrv_Cmd_OpenDataStorageByCurrentProcess:
rc = WrapIpcCommandImpl<&FsMitMService::open_data_storage_by_current_process>(this, r, out_c, pointer_buffer, pointer_buffer_size);
break;
case FspSrv_Cmd_OpenDataStorageByDataId:
rc = WrapIpcCommandImpl<&FsMitMService::open_data_storage_by_data_id>(this, r, out_c, pointer_buffer, pointer_buffer_size);
break;
}
} else {
if (cmd_id == FspSrv_Cmd_SetCurrentProcess) {
if (r.HasPid) {
this->init_pid = 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;
}
@@ -41,24 +48,15 @@ void FsMitMService::postprocess(IpcParsedCommand &r, IpcCommand &out_c, u64 cmd_
case FspSrv_Cmd_SetCurrentProcess:
if (R_SUCCEEDED(rc)) {
this->has_initialized = true;
rc = pminfoGetTitleId(&this->title_id, this->process_id);
if (R_FAILED(rc)) {
if (rc == 0x20F) {
this->title_id = this->process_id;
rc = 0x0;
} else {
fatalSimple(rc);
}
}
}
Log(&this->process_id, 8);
Log(&this->title_id, 8);
this->process_id = this->init_pid;
this->title_id = this->process_id;
if (R_FAILED(MitMQueryUtils::get_associated_tid_for_pid(this->process_id, &this->title_id))) {
/* Log here, if desired. */
}
for (unsigned int i = 0; i < sizeof(backup_tls)/sizeof(u64); i++) {
tls[i] = backup_tls[i];
}
if (this->title_id >= 0x0100000000001000) {
Reboot();
}
break;
}
resp->result = rc;
@@ -69,13 +67,46 @@ Result FsMitMService::handle_deferred() {
return 0;
}
/* Add redirection for RomFS to the SD card. */
std::tuple<Result, OutSession<IStorageInterface>> FsMitMService::open_data_storage_by_current_process() {
IPCSession<IStorageInterface> *out_session = NULL;
FsStorage data_storage;
FsFile data_file;
u32 out_domain_id = 0;
Result rc;
if (this->get_owner() == NULL) {
rc = fsOpenDataStorageByCurrentProcessFwd(this->forward_service, &data_storage);
} else {
rc = fsOpenDataStorageByCurrentProcessFromDomainFwd(this->forward_service, &out_domain_id);
if (R_SUCCEEDED(rc)) {
rc = ipcCopyFromDomain(this->forward_service->handle, out_domain_id, &data_storage.s);
}
}
Log(armGetTls(), 0x100);
if (R_SUCCEEDED(rc)) {
/* TODO: Is there a sensible path that ends in ".romfs" we can use?" */
if (R_SUCCEEDED(Utils::OpenSdFileForAtmosphere(this->title_id, "romfs.bin", FS_OPEN_READ, &data_file))) {
out_session = new IPCSession<IStorageInterface>(std::make_shared<IStorageInterface>(new LayeredRomFS(std::make_shared<RomInterfaceStorage>(data_storage), std::make_shared<RomFileStorage>(data_file), this->title_id)));
} else {
out_session = new IPCSession<IStorageInterface>(std::make_shared<IStorageInterface>(new LayeredRomFS(std::make_shared<RomInterfaceStorage>(data_storage), nullptr, this->title_id)));
}
if (this->get_owner() == NULL) {
FsMitMWorker::AddWaitable(out_session);
}
}
OutSession out_s = OutSession(out_session);
out_s.domain_id = out_domain_id;
return {rc, out_s};
}
/* Add redirection for System Data Archives to the SD card. */
std::tuple<Result, OutSession<IStorageInterface>> FsMitMService::open_data_storage_by_data_id(u64 sid, u64 data_id) {
FsStorageId storage_id = (FsStorageId)sid;
IPCSession<IStorageInterface> *out_session = NULL;
FsStorage data_storage;
FsFile data_file;
u32 out_domain_id;
u32 out_domain_id = 0;
Result rc;
if (this->get_owner() == NULL) {
rc = fsOpenDataStorageByDataId(this->forward_service, storage_id, data_id, &data_storage);
@@ -86,17 +117,14 @@ std::tuple<Result, OutSession<IStorageInterface>> FsMitMService::open_data_stora
}
}
if (R_SUCCEEDED(rc)) {
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)));
if (R_SUCCEEDED(Utils::OpenSdFileForAtmosphere(data_id, "romfs.bin", FS_OPEN_READ, &data_file))) {
out_session = new IPCSession<IStorageInterface>(std::make_shared<IStorageInterface>(new LayeredRomFS(std::make_shared<RomInterfaceStorage>(data_storage), std::make_shared<RomFileStorage>(data_file), data_id)));
} else {
out_session = new IPCSession<IStorageInterface>(std::make_shared<IStorageInterface>(new LayeredRomFS(std::make_shared<RomInterfaceStorage>(data_storage), nullptr, data_id)));
}
if (this->get_owner() == NULL) {
FsMitmWorker::AddWaitable(out_session);
FsMitMWorker::AddWaitable(out_session);
}
}

14
stratosphere/fs_mitm/source/fsmitm_service.hpp
View File

@@ -6,19 +6,23 @@
enum FspSrvCmd {
FspSrv_Cmd_SetCurrentProcess = 1,
FspSrv_Cmd_OpenDataStorageByCurrentProcess = 200,
FspSrv_Cmd_OpenDataStorageByDataId = 202,
};
class FsMitMService : public IMitMServiceObject {
private:
bool has_initialized;
u64 process_id;
u64 title_id;
u64 init_pid;
public:
FsMitMService(Service *s) : IMitMServiceObject(s), has_initialized(false), process_id(0), title_id(0) {
FsMitMService(Service *s) : IMitMServiceObject(s), has_initialized(false), init_pid(0) {
/* ... */
}
static bool should_mitm(u64 pid, u64 tid) {
return tid >= 0x0100000000010000ULL;
}
FsMitMService *clone() override {
auto new_srv = new FsMitMService((Service *)&this->forward_service);
this->clone_to(new_srv);
@@ -28,8 +32,7 @@ class FsMitMService : public IMitMServiceObject {
void clone_to(void *o) override {
FsMitMService *other = (FsMitMService *)o;
other->has_initialized = has_initialized;
other->process_id = process_id;
other->title_id = title_id;
other->init_pid = init_pid;
}
virtual Result dispatch(IpcParsedCommand &r, IpcCommand &out_c, u64 cmd_id, u8 *pointer_buffer, size_t pointer_buffer_size);
@@ -38,5 +41,6 @@ class FsMitMService : public IMitMServiceObject {
protected:
/* Overridden commands. */
std::tuple<Result, OutSession<IStorageInterface>> open_data_storage_by_current_process();
std::tuple<Result, OutSession<IStorageInterface>> open_data_storage_by_data_id(u64 storage_id, u64 data_id);
};

91
stratosphere/fs_mitm/source/fsmitm_utils.cpp
View File

@@ -3,10 +3,10 @@
#include <atomic>
#include "sm_mitm.h"
#include "debug.hpp"
#include "fsmitm_utils.hpp"
static FsFileSystem g_sd_filesystem;
static FsFileSystem g_sd_filesystem = {0};
static bool g_has_initialized = false;
static Result EnsureInitialized() {
@@ -19,7 +19,7 @@ static Result EnsureInitialized() {
Result rc = smMitMUninstall(required_active_services[i]);
if (rc == 0xE15) {
return rc;
} else if (rc != 0x1015) {
} else if (R_FAILED(rc) && rc != 0x1015) {
return rc;
}
}
@@ -31,12 +31,93 @@ static Result EnsureInitialized() {
return rc;
}
bool Utils::IsSdInitialized() {
return R_SUCCEEDED(EnsureInitialized());
}
Result Utils::OpenSdFile(const char *fn, int flags, FsFile *out) {
Result rc;
if (R_FAILED((rc = EnsureInitialized()))) {
return rc;
}
return fsFsOpenFile(&g_sd_filesystem, fn, flags, out);
}
Result Utils::OpenSdFileForAtmosphere(u64 title_id, const char *fn, int flags, FsFile *out) {
Result rc;
if (R_FAILED((rc = EnsureInitialized()))) {
return rc;
}
char path[FS_MAX_PATH];
strcpy(path, fn);
if (*fn == '/') {
snprintf(path, sizeof(path), "/atmosphere/titles/%016lx%s", title_id, fn);
} else {
snprintf(path, sizeof(path), "/atmosphere/titles/%016lx/%s", title_id, fn);
}
return fsFsOpenFile(&g_sd_filesystem, path, flags, out);
}
}
Result Utils::OpenRomFSSdFile(u64 title_id, const char *fn, int flags, FsFile *out) {
Result rc;
if (R_FAILED((rc = EnsureInitialized()))) {
return rc;
}
return OpenRomFSFile(&g_sd_filesystem, title_id, fn, flags, out);
}
Result Utils::OpenSdDir(const char *path, FsDir *out) {
Result rc;
if (R_FAILED((rc = EnsureInitialized()))) {
return rc;
}
return fsFsOpenDirectory(&g_sd_filesystem, path, FS_DIROPEN_DIRECTORY | FS_DIROPEN_FILE, out);
}
Result Utils::OpenSdDirForAtmosphere(u64 title_id, const char *path, FsDir *out) {
Result rc;
if (R_FAILED((rc = EnsureInitialized()))) {
return rc;
}
char safe_path[FS_MAX_PATH];
if (*path == '/') {
snprintf(safe_path, sizeof(safe_path), "/atmosphere/titles/%016lx%s", title_id, path);
} else {
snprintf(safe_path, sizeof(safe_path), "/atmosphere/titles/%016lx/%s", title_id, path);
}
return fsFsOpenDirectory(&g_sd_filesystem, safe_path, FS_DIROPEN_DIRECTORY | FS_DIROPEN_FILE, out);
}
Result Utils::OpenRomFSSdDir(u64 title_id, const char *path, FsDir *out) {
Result rc;
if (R_FAILED((rc = EnsureInitialized()))) {
return rc;
}
return OpenRomFSDir(&g_sd_filesystem, title_id, path, out);
}
Result Utils::OpenRomFSFile(FsFileSystem *fs, u64 title_id, const char *fn, int flags, FsFile *out) {
char path[FS_MAX_PATH];
if (*fn == '/') {
snprintf(path, sizeof(path), "/atmosphere/titles/%016lx/romfs%s", title_id, fn);
} else {
snprintf(path, sizeof(path), "/atmosphere/titles/%016lx/romfs/%s", title_id, fn);
}
return fsFsOpenFile(fs, path, flags, out);
}
Result Utils::OpenRomFSDir(FsFileSystem *fs, u64 title_id, const char *path, FsDir *out) {
char safe_path[FS_MAX_PATH];
if (*path == '/') {
snprintf(safe_path, sizeof(safe_path), "/atmosphere/titles/%016lx/romfs%s", title_id, path);
} else {
snprintf(safe_path, sizeof(safe_path), "/atmosphere/titles/%016lx/romfs/%s", title_id, path);
}
return fsFsOpenDirectory(fs, safe_path, FS_DIROPEN_DIRECTORY | FS_DIROPEN_FILE, out);
}

10
stratosphere/fs_mitm/source/fsmitm_utils.hpp
View File

@@ -4,5 +4,15 @@
class Utils {
public:
static bool IsSdInitialized();
static Result OpenSdFile(const char *fn, int flags, FsFile *out);
static Result OpenSdFileForAtmosphere(u64 title_id, const char *fn, int flags, FsFile *out);
static Result OpenRomFSSdFile(u64 title_id, const char *fn, int flags, FsFile *out);
static Result OpenSdDir(const char *path, FsDir *out);
static Result OpenSdDirForAtmosphere(u64 title_id, const char *path, FsDir *out);
static Result OpenRomFSSdDir(u64 title_id, const char *path, FsDir *out);
static Result OpenRomFSFile(FsFileSystem *fs, u64 title_id, const char *fn, int flags, FsFile *out);
static Result OpenRomFSDir(FsFileSystem *fs, u64 title_id, const char *path, FsDir *out);
};

9
stratosphere/fs_mitm/source/fsmitm_worker.cpp
View File

@@ -9,13 +9,14 @@ static HosSemaphore g_sema_new_waitable_finish;
static WaitableManager *g_worker_waiter = NULL;
Result FsMitmWorker::AddWaitableCallback(Handle *handles, size_t num_handles, u64 timeout) {
Result FsMitMWorker::AddWaitableCallback(void *arg, Handle *handles, size_t num_handles, u64 timeout) {
(void)arg;
svcClearEvent(handles[0]);
g_sema_new_waitable_finish.Signal();
return 0;
}
void FsMitmWorker::AddWaitable(IWaitable *waitable) {
void FsMitMWorker::AddWaitable(IWaitable *waitable) {
g_worker_waiter->add_waitable(waitable);
g_new_waitable_mutex.Lock();
g_new_waitable_event->signal_event();
@@ -23,9 +24,9 @@ void FsMitmWorker::AddWaitable(IWaitable *waitable) {
g_new_waitable_mutex.Unlock();
}
void FsMitmWorker::Main(void *arg) {
void FsMitMWorker::Main(void *arg) {
/* Initialize waitable event. */
g_new_waitable_event = new SystemEvent(&FsMitmWorker::AddWaitableCallback);
g_new_waitable_event = new SystemEvent(NULL, &FsMitMWorker::AddWaitableCallback);
/* Make a new waitable manager. */
g_worker_waiter = new WaitableManager(U64_MAX);

4
stratosphere/fs_mitm/source/fsmitm_worker.hpp
View File

@@ -2,9 +2,9 @@
#include <switch.h>
#include <stratosphere.hpp>
class FsMitmWorker {
class FsMitMWorker {
private:
static Result AddWaitableCallback(Handle *handles, size_t num_handles, u64 timeout);
static Result AddWaitableCallback(void *arg, Handle *handles, size_t num_handles, u64 timeout);
public:
static void Main(void *arg);
static void AddWaitable(IWaitable *waitable);

11
stratosphere/fs_mitm/source/imitmserviceobject.hpp
View File

@@ -1,16 +1,25 @@
#pragma once
#include <switch.h>
#include <atomic>
#include <stratosphere.hpp>
#include "debug.hpp"
class IMitMServiceObject : public IServiceObject {
protected:
Service *forward_service;
u64 process_id;
u64 title_id;
public:
IMitMServiceObject(Service *s) : forward_service(s) {
IMitMServiceObject(Service *s) : forward_service(s), process_id(0), title_id(0) {
}
static bool should_mitm(u64 pid, u64 tid) {
return true;
}
virtual void clone_to(void *o) = 0;
protected:
virtual ~IMitMServiceObject() { }

28
stratosphere/fs_mitm/source/mitm_query_service.cpp Normal file
View File

@@ -0,0 +1,28 @@
#include <switch.h>
#include <stratosphere.hpp>
#include "mitm_query_service.hpp"
static std::vector<u64> g_known_pids;
static std::vector<u64> g_known_tids;
static HosMutex g_pid_tid_mutex;
Result MitMQueryUtils::get_associated_tid_for_pid(u64 pid, u64 *tid) {
Result rc = 0xCAFE;
g_pid_tid_mutex.Lock();
for (unsigned int i = 0; i < g_known_pids.size(); i++) {
if (g_known_pids[i] == pid) {
*tid = g_known_tids[i];
rc = 0x0;
break;
}
}
g_pid_tid_mutex.Unlock();
return rc;
}
void MitMQueryUtils::associate_pid_to_tid(u64 pid, u64 tid) {
g_pid_tid_mutex.Lock();
g_known_pids.push_back(pid);
g_known_tids.push_back(tid);
g_pid_tid_mutex.Unlock();
}

59
stratosphere/fs_mitm/source/mitm_query_service.hpp Normal file
View File

@@ -0,0 +1,59 @@
#pragma once
#include <switch.h>
#include <stratosphere/iserviceobject.hpp>
#include "debug.hpp"
enum MitMQueryServiceCommand {
MQS_Cmd_ShouldMitm = 65000,
MQS_Cmd_AssociatePidTid = 65001
};
namespace MitMQueryUtils {
Result get_associated_tid_for_pid(u64 pid, u64 *tid);
void associate_pid_to_tid(u64 pid, u64 tid);
}
template <typename T>
class MitMQueryService : public IServiceObject {
public:
MitMQueryService<T> *clone() override {
return new MitMQueryService<T>();
}
Result dispatch(IpcParsedCommand &r, IpcCommand &out_c, u64 cmd_id, u8 *pointer_buffer, size_t pointer_buffer_size) override {
Log(armGetTls(), 0x100);
switch (cmd_id) {
case MQS_Cmd_ShouldMitm:
return WrapIpcCommandImpl<&MitMQueryService::should_mitm>(this, r, out_c, pointer_buffer, pointer_buffer_size);
case MQS_Cmd_AssociatePidTid:
return WrapIpcCommandImpl<&MitMQueryService::associate_pid_tid>(this, r, out_c, pointer_buffer, pointer_buffer_size);
default:
return 0xF601;
}
if (cmd_id == 65000) {
} else {
return 0xF601;
}
}
Result handle_deferred() override {
/* This service is never deferrable. */
return 0;
}
protected:
std::tuple<Result, u64> should_mitm(u64 pid) {
u64 should_mitm = 0;
u64 tid = 0;
if (R_SUCCEEDED(MitMQueryUtils::get_associated_tid_for_pid(pid, &tid))) {
should_mitm = T::should_mitm(pid, tid);
}
return {0, should_mitm};
}
std::tuple<Result> associate_pid_tid(u64 pid, u64 tid) {
MitMQueryUtils::associate_pid_to_tid(pid, tid);
return {0x0};
}
};

9
stratosphere/fs_mitm/source/mitm_server.hpp
View File

@@ -2,6 +2,7 @@
#include <switch.h>
#include <stratosphere.hpp>
#include "mitm_query_service.hpp"
#include "sm_mitm.h"
#include "mitm_session.hpp"
@@ -16,9 +17,10 @@ class MitMServer final : public IServer<T> {
private:
char mitm_name[9];
public:
MitMServer(const char *service_name, unsigned int max_s, bool s_d = false) : IServer<T>(service_name, max_s, s_d) {
public:
MitMServer(ISession<MitMQueryService<T>> **out_query_session, const char *service_name, unsigned int max_s, bool s_d = false) : IServer<T>(service_name, max_s, s_d) {
Handle tmp_hnd;
Handle out_query_h;
Result rc;
if (R_SUCCEEDED((rc = smGetServiceOriginal(&tmp_hnd, smEncodeName(service_name))))) {
@@ -28,9 +30,10 @@ class MitMServer final : public IServer<T> {
}
strncpy(mitm_name, service_name, 8);
mitm_name[8] = '\x00';
if (R_FAILED((rc = smMitMInstall(&this->port_handle, mitm_name)))) {
if (R_FAILED((rc = smMitMInstall(&this->port_handle, &out_query_h, mitm_name)))) {
fatalSimple(rc);
}
*out_query_session = new ServiceSession<MitMQueryService<T>>(NULL, out_query_h, 0);
}
virtual ~MitMServer() {

16
stratosphere/fs_mitm/source/mitm_service.cpp
View File

@@ -1,16 +0,0 @@
#include <switch.h>
#include "mitm_service.hpp"
#include "debug.hpp"
Result GenericMitMService::dispatch(IpcParsedCommand &r, IpcCommand &out_c, u64 cmd_id, u8 *pointer_buffer, size_t pointer_buffer_size) {
return 0xF601;
}
void GenericMitMService::postprocess(IpcParsedCommand &r, IpcCommand &out_c, u64 cmd_id, u8 *pointer_buffer, size_t pointer_buffer_size) {
}
Result GenericMitMService::handle_deferred() {
/* This service is never deferrable. */
return 0;
}

27
stratosphere/fs_mitm/source/mitm_service.hpp
View File

@@ -1,27 +0,0 @@
#pragma once
#include <switch.h>
#include <stratosphere/iserviceobject.hpp>
#include "imitmserviceobject.hpp"
#include "fs_istorage.hpp"
class GenericMitMService : public IMitMServiceObject {
public:
GenericMitMService(Service *s) : IMitMServiceObject(s) {
/* ... */
}
GenericMitMService *clone() override {
auto new_srv = new GenericMitMService((Service *)&this->forward_service);
this->clone_to(new_srv);
return new_srv;
}
void clone_to(void *o) override {
/* ... */
}
virtual Result dispatch(IpcParsedCommand &r, IpcCommand &out_c, u64 cmd_id, u8 *pointer_buffer, size_t pointer_buffer_size);
virtual void postprocess(IpcParsedCommand &r, IpcCommand &out_c, u64 cmd_id, u8 *pointer_buffer, size_t pointer_buffer_size);
virtual Result handle_deferred();
};

68
stratosphere/fs_mitm/source/mitm_session.hpp
View File

@@ -3,11 +3,12 @@
#include <stratosphere.hpp>
#include "imitmserviceobject.hpp"
#include "mitm_query_service.hpp"
#include "mitm_server.hpp"
#include "fsmitm_worker.hpp"
#include "debug.hpp"
template <typename T>
class MitMServer;
@@ -19,9 +20,10 @@ class MitMSession final : public ISession<T> {
Service forward_service;
IpcParsedCommand cur_out_r;
u32 mitm_domain_id;
bool got_first_message;
public:
MitMSession<T>(MitMServer<T> *s, Handle s_h, Handle c_h, const char *srv) : ISession<T>(s, s_h, c_h, NULL, 0), mitm_domain_id(0) {
MitMSession<T>(MitMServer<T> *s, Handle s_h, Handle c_h, const char *srv) : ISession<T>(s, s_h, c_h, NULL, 0), mitm_domain_id(0), got_first_message(false) {
this->server = s;
this->server_handle = s_h;
this->client_handle = c_h;
@@ -31,16 +33,18 @@ class MitMSession final : public ISession<T> {
if (R_FAILED(ipcQueryPointerBufferSize(forward_service.handle, &this->pointer_buffer_size))) {
/* TODO: Panic. */
}
this->service_object = new T(&forward_service);
this->service_object = std::make_shared<T>(&forward_service);
this->pointer_buffer = new char[this->pointer_buffer_size];
}
MitMSession<T>(MitMServer<T> *s, Handle s_h, Handle c_h, Handle f_h, size_t pbs) : ISession<T>(s, s_h, c_h, NULL, 0), mitm_domain_id(0) {
MitMSession<T>(MitMServer<T> *s, Handle s_h, Handle c_h, Handle f_h) : ISession<T>(s, s_h, c_h, NULL, 0), mitm_domain_id(0), got_first_message(true) {
this->server = s;
this->server_handle = s_h;
this->client_handle = c_h;
this->pointer_buffer_size = pbs;
this->forward_service = {.handle = f_h};
this->service_object = new T(&forward_service);
serviceCreate(&this->forward_service, f_h);
if (R_FAILED(ipcQueryPointerBufferSize(forward_service.handle, &this->pointer_buffer_size))) {
/* TODO: Panic. */
}
this->service_object = std::make_shared<T>(&forward_service);
this->pointer_buffer = new char[this->pointer_buffer_size];
}
@@ -57,14 +61,21 @@ class MitMSession final : public ISession<T> {
cur_out_r.NumHandles = 0;
Log(armGetTls(), 0x100);
u32 *cmdbuf = (u32 *)armGetTls();
if (r.CommandType == IpcCommandType_Close) {
Reboot();
}
if (r.CommandType == IpcCommandType_Request || r.CommandType == IpcCommandType_RequestWithContext) {
IServiceObject *obj;
std::shared_ptr<IServiceObject> obj;
if (r.IsDomainMessage) {
obj = this->get_domain_object(r.ThisObjectId);
if (obj && r.MessageType == DomainMessageType_Close) {
this->delete_object(r.ThisObjectId);
obj = this->domain->get_domain_object(r.ThisObjectId);
if (obj != nullptr && r.MessageType == DomainMessageType_Close) {
if (r.ThisObjectId == this->mitm_domain_id) {
Reboot();
}
this->domain->delete_object(r.ThisObjectId);
struct {
u64 magic;
u64 result;
@@ -75,13 +86,12 @@ class MitMSession final : public ISession<T> {
o_resp->magic = SFCO_MAGIC;
o_resp->result = 0x0;
Log(armGetTls(), 0x100);
Reboot();
return o_resp->result;
}
} else {
obj = this->service_object;
}
if (obj) {
if (obj != nullptr) {
retval = obj->dispatch(r, c, cmd_id, (u8 *)this->pointer_buffer, this->pointer_buffer_size);
if (R_SUCCEEDED(retval)) {
if (r.IsDomainMessage) {
@@ -103,7 +113,7 @@ class MitMSession final : public ISession<T> {
u64 result;
} *resp = (decltype(resp))cur_out_r.Raw;
retval = resp->result;
if (false && (cmd_id == IpcCtrl_Cmd_CloneCurrentObject || cmd_id == IpcCtrl_Cmd_CloneCurrentObjectEx)) {
if ((cmd_id == IpcCtrl_Cmd_CloneCurrentObject || cmd_id == IpcCtrl_Cmd_CloneCurrentObjectEx)) {
if (R_SUCCEEDED(retval)) {
Handle s_h;
Handle c_h;
@@ -112,22 +122,18 @@ class MitMSession final : public ISession<T> {
fatalSimple(rc);
}
MitMSession<T> *new_sess = new MitMSession<T>((MitMServer<T> *)this->server, s_h, c_h, cur_out_r.Handles[0], this->pointer_buffer_size);
this->get_service_object()->clone_to(new_sess->get_service_object());
if (cur_out_r.NumHandles != 1) {
Reboot();
}
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;
if (this->is_domain) {
new_sess->is_domain = true;
new_sess->domain = this->domain;
new_sess->mitm_domain_id = this->mitm_domain_id;
new_sess->forward_service.type = this->forward_service.type;
new_sess->forward_service.object_id = this->forward_service.object_id;
new_sess->set_object(new_sess->get_service_object(), new_sess->mitm_domain_id);
for (unsigned int i = 0; i < DOMAIN_ID_MAX; i++) {
if (i != new_sess->mitm_domain_id) {
IServiceObject *obj = this->get_domain_object(i);
if (obj) {
new_sess->set_object(obj->clone(), i);
}
}
}
}
this->get_manager()->add_waitable(new_sess);
ipcSendHandleMove(&c, c_h);
@@ -179,7 +185,11 @@ class MitMSession final : public ISession<T> {
if (R_FAILED(retval)) {
// Reboot();
}
if (retval == 0xA08) {
Reboot();
}
return retval;
}
@@ -190,15 +200,15 @@ class MitMSession final : public ISession<T> {
this->service_object->postprocess(cur_out_r, c, cmd_id, (u8 *)this->pointer_buffer, this->pointer_buffer_size);
} else if (r.CommandType == IpcCommandType_Control || r.CommandType == IpcCommandType_ControlWithContext) {
if (cmd_id == IpcCtrl_Cmd_ConvertCurrentObjectToDomain) {
return;
this->is_domain = true;
this->domain = std::make_shared<DomainOwner>();
struct {
u64 magic;
u64 result;
u32 domain_id;
} *resp = (decltype(resp))cur_out_r.Raw;
Result rc;
if (R_FAILED((rc = this->set_object(this->service_object, resp->domain_id)))) {
if (R_FAILED((rc = this->domain->set_object(this->service_object, resp->domain_id)))) {
fatalSimple(rc);
}
this->mitm_domain_id = resp->domain_id;

3
stratosphere/fs_mitm/source/sm_mitm.c
View File

@@ -101,7 +101,7 @@ Result smMitMGetService(Service* service_out, const char *name_str)
}
Result smMitMInstall(Handle *handle_out, const char *name) {
Result smMitMInstall(Handle *handle_out, Handle *query_out, const char *name) {
IpcCommand c;
ipcInitialize(&c);
@@ -132,6 +132,7 @@ Result smMitMInstall(Handle *handle_out, const char *name) {
if (R_SUCCEEDED(rc)) {
*handle_out = r.Handles[0];
*query_out = r.Handles[1];
}
}

2
stratosphere/fs_mitm/source/sm_mitm.h
View File

@@ -14,7 +14,7 @@ extern "C" {
Result smMitMInitialize(void);
void smMitMExit(void);
Result smMitMGetService(Service* service_out, const char *name);
Result smMitMInstall(Handle *handle_out, const char *name);
Result smMitMInstall(Handle *handle_out, Handle *query_out, const char *name);
Result smMitMUninstall(const char *name);
#ifdef __cplusplus