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Stratosphere: Add libnx fsp-ldr wrapper to Loader

This commit is contained in:
Michael Scire 2018-04-19 00:37:01 -06:00
parent af11f9fdec
commit f0759b0afc
3 changed files with 199 additions and 2 deletions

View file

@ -4,6 +4,8 @@
#include <malloc.h>
#include <switch.h>
#include <switch/services/lr.h>
#include "lib/fsldr.h"
#include "waitablemanager.hpp"
#include "serviceserver.hpp"
@ -19,8 +21,7 @@ u32 __nx_applet_type = AppletType_None;
size_t nx_inner_heap_size = INNER_HEAP_SIZE;
char nx_inner_heap[INNER_HEAP_SIZE];
void __libnx_initheap(void)
{
void __libnx_initheap(void) {
void* addr = nx_inner_heap;
size_t size = nx_inner_heap_size;
@ -32,6 +33,38 @@ void __libnx_initheap(void)
fake_heap_end = (char*)addr + size;
}
void __appInit(void) {
Result rc;
/* Initialize services we need (TODO: SPL) */
rc = smInitialize();
if (R_FAILED(rc))
fatalSimple(MAKERESULT(Module_Libnx, LibnxError_InitFail_SM));
rc = fsInitialize();
if (R_FAILED(rc))
fatalSimple(MAKERESULT(Module_Libnx, LibnxError_InitFail_FS));
rc = lrInitialize();
if (R_FAILED(rc))
fatalSimple(0xCAFE << 4 | 1);
rc = fsldrInitialize();
if (R_FAILED(rc))
fatalSimple(0xCAFE << 4 | 2);
fsdevInit();
}
void __appExit(void) {
/* Cleanup services. */
fsdevExit();
fsldrExit();
lrExit();
fsExit();
smExit();
}
int main(int argc, char **argv)
{
consoleDebugInit(debugDevice_SVC);

View file

@ -0,0 +1,147 @@
// Copyright 2018 SciresM
#include <string.h>
#include <switch/types.h>
#include <switch/result.h>
#include <switch/arm/atomics.h>
#include <switch/kernel/ipc.h>
#include <switch/kernel/detect.h>
#include <switch/services/fs.h>
#include <switch/services/sm.h>
#include "fsldr.h"
static Service g_fsldrSrv;
static u64 g_fsldrRefCnt;
Result fsldrSetCurrentProcess();
Result fsldrInitialize(void) {
atomicIncrement64(&g_refCnt);
if (serviceIsActive(&g_fsldrSrv))
return 0;
Result rc = smGetService(&g_fsldrSrv, "fsp-ldr");
if (R_SUCCEEDED(rc) && kernelAbove400()) {
rc = fsldrSetCurrentProcess();
}
return rc;
}
void fsldrExit(void) {
if (atomicDecrement64(&g_fsldrRefCnt) == 0)
serviceClose(&g_fsldrSrv);
}
Result fsldrOpenCodeFileSystem(u64 tid, const char *path, FsFileSystem* out) {
char send_path[FS_MAX_PATH] = {0};
IpcCommand c;
ipcInitialize(&c);
ipcAddSendStatic(&c, send_path, FS_MAX_PATH, 0);
struct {
u64 magic;
u64 cmd_id;
u64 tid;
} *raw;
raw = ipcPrepareHeader(&c, sizeof(*raw));
raw->magic = SFCI_MAGIC;
raw->cmd_id = 0;
raw->tid = tid;
strncpy(send_path, path, FS_MAX_PATH);
Result rc = serviceIpcDispatch(&g_fsldrSrv);
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 fsldrIsArchivedProgram(u64 pid, bool *out) {
IpcCommand c;
ipcInitialize(&c);
struct {
u64 magic;
u64 cmd_id;
u64 pid;
} *raw;
raw = ipcPrepareHeader(&c, sizeof(*raw));
raw->magic = SFCI_MAGIC;
raw->cmd_id = 1;
raw->pid = pid;
Result rc = serviceIpcDispatch(&g_fsldrSrv);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct {
u64 magic;
u64 result;
u8 is_archived;
} *resp = r.Raw;
rc = resp->result;
if (R_SUCCEEDED(rc)) {
*out = is_archived != 0;
}
}
return rc;
}
Result fsldrSetCurrentProcess() {
IpcCommand c;
ipcInitialize(&c);
ipcSendPid(&c);
struct {
u64 magic;
u64 cmd_id;
u64 unk;
} *raw;
raw = ipcPrepareHeader(&c, sizeof(*raw));
raw->magic = SFCI_MAGIC;
raw->cmd_id = 2;
raw->unk = 0;
rc = serviceIpcDispatch(&g_fsldrSrv);
if (R_SUCCEEDED(rc)) {
IpcParsedCommand r;
ipcParse(&r);
struct {
u64 magic;
u64 result;
} *resp = r.Raw;
rc = resp->result;
}
return rc;
}

View file

@ -0,0 +1,17 @@
/**
* @file fsldr.h
* @brief FilesystemProxy-ForLoader (fsp-ldr) service IPC wrapper.
* @author SciresM
* @copyright libnx Authors
*/
#pragma once
#include <switch/types.h>
#include <switch/services/sm.h>
#include <switch/services/fs.h>
Result fsldrInitialize(void);
void fsldrExit(void);
Result fsldrOpenCodeFileSystem(u64 tid, const char *path, FsFileSystem* out);
Result fsldrIsArchivedProgram(u64 pid, bool *out);
Result fsldrSetCurrentProcess();