Added Rosalina, see details

- see release notes
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sysmodules/rosalina/source/fsreg.c

@@ -0,0 +1,179 @@
+/*
+*   This file is part of Luma3DS
+*   Copyright (C) 2016-2017 Aurora Wright, TuxSH
+*
+*   This program is free software: you can redistribute it and/or modify
+*   it under the terms of the GNU General Public License as published by
+*   the Free Software Foundation, either version 3 of the License, or
+*   (at your option) any later version.
+*
+*   This program is distributed in the hope that 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/>.
+*
+*   Additional Terms 7.b and 7.c of GPLv3 apply to this file:
+*       * Requiring preservation of specified reasonable legal notices or
+*         author attributions in that material or in the Appropriate Legal
+*         Notices displayed by works containing it.
+*       * Prohibiting misrepresentation of the origin of that material,
+*         or requiring that modified versions of such material be marked in
+*         reasonable ways as different from the original version.
+*/
+
+#include <3ds.h>
+#include <string.h>
+#include "fsreg.h"
+#include "services.h"
+#include "csvc.h"
+
+static Handle fsregHandle;
+static int fsregRefCount;
+
+Result fsregInit(void)
+{
+    Result ret = 0;
+
+    if(AtomicPostIncrement(&fsregRefCount))
+        return 0;
+
+    ret = svcControlService(SERVICEOP_STEAL_CLIENT_SESSION, &fsregHandle, "fs:REG");
+    while(ret == 0x9401BFE)
+    {
+        svcSleepThread(500 * 1000LL);
+        ret = svcControlService(SERVICEOP_STEAL_CLIENT_SESSION, &fsregHandle, "fs:REG");
+    }
+
+    if(R_FAILED(ret))
+        AtomicDecrement(&fsregRefCount);
+    return ret;
+}
+
+void fsregExit(void)
+{
+    if(AtomicDecrement(&fsregRefCount) || !fsregHandle)
+        return;
+    svcCloseHandle(fsregHandle);
+}
+
+Handle fsregGetHandle(void)
+{
+    return fsregHandle;
+}
+
+Result fsregSetupPermissions(void)
+{
+    u32 pid;
+    Result res;
+    FS_ProgramInfo info;
+    u32 storage[8] = {0};
+
+    storage[6] = 0x800 | 0x400 | 0x80 | 0x1; // SDMC access and NAND access flags
+    info.programId = 0x0004013000006902LL; // Rosalina TID
+    info.mediaType = MEDIATYPE_NAND;
+
+    if(R_SUCCEEDED(res = svcGetProcessId(&pid, 0xFFFF8001))) // 0xFFFF8001 is an handle to the active process
+        res = FSREG_Register(pid, 0xFFFF000000000000LL, &info, (u8*)storage);
+
+    return res;
+}
+
+Result FSREG_CheckHostLoadId(u64 prog_handle)
+{
+    u32 *cmdbuf = getThreadCommandBuffer();
+
+    cmdbuf[0] = IPC_MakeHeader(0x406,2,0); // 0x4060080
+    cmdbuf[1] = (u32) (prog_handle);
+    cmdbuf[2] = (u32) (prog_handle >> 32);
+
+    Result ret = 0;
+    if(R_FAILED(ret = svcSendSyncRequest(fsregHandle)))
+        return ret;
+
+    return cmdbuf[1];
+}
+
+Result FSREG_LoadProgram(u64 *prog_handle, FS_ProgramInfo *title)
+{
+    u32 *cmdbuf = getThreadCommandBuffer();
+
+    cmdbuf[0] = IPC_MakeHeader(0x404,4,0); // 0x4040100
+    memcpy(&cmdbuf[1], &title->programId, sizeof(u64));
+    *(u8 *)&cmdbuf[3] = title->mediaType;
+    memcpy(((u8 *)&cmdbuf[3])+1, &title->padding, 7);
+
+    Result ret = 0;
+    if(R_FAILED(ret = svcSendSyncRequest(fsregHandle)))
+        return ret;
+    *prog_handle = *(u64 *)&cmdbuf[2];
+
+    return cmdbuf[1];
+}
+
+Result FSREG_GetProgramInfo(exheader_header *exheader, u32 entry_count, u64 prog_handle)
+{
+    u32 *cmdbuf = getThreadCommandBuffer();
+
+    cmdbuf[0] = IPC_MakeHeader(0x403,3,0); // 0x40300C0
+    cmdbuf[1] = entry_count;
+    *(u64 *)&cmdbuf[2] = prog_handle;
+    cmdbuf[64] = ((entry_count << 10) << 14) | 2;
+    cmdbuf[65] = (u32) exheader;
+
+    Result ret = 0;
+    if(R_FAILED(ret = svcSendSyncRequest(fsregHandle)))
+    return ret;
+
+    return cmdbuf[1];
+}
+
+Result FSREG_UnloadProgram(u64 prog_handle)
+{
+    u32 *cmdbuf = getThreadCommandBuffer();
+
+    cmdbuf[0] = IPC_MakeHeader(0x405,2,0); // 0x4050080
+    cmdbuf[1] = (u32) (prog_handle);
+    cmdbuf[2] = (u32) (prog_handle >> 32);
+
+    Result ret = 0;
+    if(R_FAILED(ret = svcSendSyncRequest(fsregHandle)))
+        return ret;
+
+    return cmdbuf[1];
+}
+
+Result FSREG_Unregister(u32 pid)
+{
+    u32 *cmdbuf = getThreadCommandBuffer();
+
+    cmdbuf[0] = IPC_MakeHeader(0x402,1,0); // 0x4020040
+    cmdbuf[1] = pid;
+
+    Result ret = 0;
+    if(R_FAILED(ret = svcSendSyncRequest(fsregHandle)))
+        return ret;
+
+    return cmdbuf[1];
+}
+
+Result FSREG_Register(u32 pid, u64 prog_handle, FS_ProgramInfo *info, void *storageinfo)
+{
+    u32 *cmdbuf = getThreadCommandBuffer();
+
+    cmdbuf[0] = IPC_MakeHeader(0x401,0xf,0); // 0x40103C0
+    cmdbuf[1] = pid;
+    *(u64 *)&cmdbuf[2] = prog_handle;
+    memcpy(&cmdbuf[4], &info->programId, sizeof(u64));
+    *(u8 *)&cmdbuf[6] = info->mediaType;
+    memcpy(((u8 *)&cmdbuf[6])+1, &info->padding, 7);
+    memcpy((u8 *)&cmdbuf[8], storageinfo, 32);
+
+    Result ret = 0;
+    if(R_FAILED(ret = svcSendSyncRequest(fsregHandle)))
+        return ret;
+
+    return cmdbuf[1];
+}