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FSA: Disable access to some raw devices for unlocked clients
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66
source/ios_fs/source/fsa.h
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66
source/ios_fs/source/fsa.h
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#pragma once
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#include <assert.h>
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#include <stdint.h>
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#define FSA_CAPABILITY_ODD_READ (1llu << 0)
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#define FSA_CAPABILITY_ODD_WRITE (1llu << 1)
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#define FSA_CAPABILITY_ODD_RAW_OPEN (1llu << 2)
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#define FSA_CAPABILITY_ODD_MOUNT (1llu << 3)
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#define FSA_CAPABILITY_SLCCMPT_READ (1llu << 4)
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#define FSA_CAPABILITY_SLCCMPT_WRITE (1llu << 5)
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#define FSA_CAPABILITY_SLCCMPT_RAW_OPEN (1llu << 6)
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#define FSA_CAPABILITY_SLCCMPT_MOUNT (1llu << 7)
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#define FSA_CAPABILITY_SLC_READ (1llu << 8)
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#define FSA_CAPABILITY_SLC_WRITE (1llu << 9)
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#define FSA_CAPABILITY_SLC_RAW_OPEN (1llu << 10)
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#define FSA_CAPABILITY_SLC_MOUNT (1llu << 11)
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#define FSA_CAPABILITY_MLC_READ (1llu << 12)
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#define FSA_CAPABILITY_MLC_WRITE (1llu << 13)
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#define FSA_CAPABILITY_MLC_RAW_OPEN (1llu << 14)
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#define FSA_CAPABILITY_MLC_MOUNT (1llu << 15)
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#define FSA_CAPABILITY_SDCARD_READ (1llu << 16)
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#define FSA_CAPABILITY_SDCARD_WRITE (1llu << 17)
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#define FSA_CAPABILITY_SDCARD_RAW_OPEN (1llu << 18)
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#define FSA_CAPABILITY_SDCARD_MOUNT (1llu << 19)
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#define FSA_CAPABILITY_HFIO_READ (1llu << 20)
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#define FSA_CAPABILITY_HFIO_WRITE (1llu << 21)
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#define FSA_CAPABILITY_HFIO_RAW_OPEN (1llu << 22)
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#define FSA_CAPABILITY_HFIO_MOUNT (1llu << 23)
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#define FSA_CAPABILITY_RAMDISK_READ (1llu << 24)
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#define FSA_CAPABILITY_RAMDISK_WRITE (1llu << 25)
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#define FSA_CAPABILITY_RAMDISK_RAW_OPEN (1llu << 26)
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#define FSA_CAPABILITY_RAMDISK_MOUNT (1llu << 27)
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#define FSA_CAPABILITY_USB_READ (1llu << 28)
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#define FSA_CAPABILITY_USB_WRITE (1llu << 29)
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#define FSA_CAPABILITY_USB_RAW_OPEN (1llu << 30)
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#define FSA_CAPABILITY_USB_MOUNT (1llu << 31)
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#define FSA_CAPABILITY_OTHER_READ (1llu << 32)
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#define FSA_CAPABILITY_OTHER_WRITE (1llu << 33)
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#define FSA_CAPABILITY_OTHER_RAW_OPEN (1llu << 34)
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#define FSA_CAPABILITY_OTHER_MOUNT (1llu << 35)
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typedef struct __attribute__((packed)) {
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uint32_t initialized;
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uint64_t titleId;
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uint32_t processId;
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uint32_t groupId;
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uint32_t unk0;
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uint64_t capabilityMask;
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uint8_t unk1[0x4518];
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char unk2[0x280];
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char unk3[0x280];
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void *mutex;
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} FSAProcessData;
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static_assert(sizeof(FSAProcessData) == 0x4A3C, "FSAProcessData: wrong size");
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typedef struct __attribute__((packed)) {
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uint32_t opened;
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FSAProcessData *processData;
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char unk0[0x10];
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char unk1[0x90];
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uint32_t unk2;
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char work_dir[0x280];
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uint32_t unk3;
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} FSAClientHandle;
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static_assert(sizeof(FSAClientHandle) == 0x330, "FSAClientHandle: wrong size");
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@ -1,35 +1,15 @@
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#include "fsa.h"
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#include "ipc_types.h"
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#include <assert.h>
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#include <stdint.h>
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#include <stdio.h>
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typedef struct __attribute__((packed)) {
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uint32_t initialized;
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uint64_t titleId;
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uint32_t processId;
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uint32_t groupId;
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uint32_t unk0;
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uint64_t capabilityMask;
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uint8_t unk1[0x4518];
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char unk2[0x280];
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char unk3[0x280];
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void *mutex;
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} FSAProcessData;
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static_assert(sizeof(FSAProcessData) == 0x4A3C, "FSAProcessData: wrong size");
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typedef struct __attribute__((packed)) {
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uint32_t opened;
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FSAProcessData *processData;
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char unk0[0x10];
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char unk1[0x90];
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uint32_t unk2;
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char work_dir[0x280];
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uint32_t unk3;
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} FSAClientHandle;
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static_assert(sizeof(FSAClientHandle) == 0x330, "FSAClientHandle: wrong size");
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#define PATCHED_CLIENT_HANDLES_MAX_COUNT 0x40
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// Disable raw access to every device except ODD and USB
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#define DISABLED_CAPABILITIES \
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(FSA_CAPABILITY_SLCCMPT_RAW_OPEN | FSA_CAPABILITY_SLC_RAW_OPEN | FSA_CAPABILITY_MLC_RAW_OPEN | FSA_CAPABILITY_SDCARD_RAW_OPEN | \
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FSA_CAPABILITY_HFIO_RAW_OPEN | FSA_CAPABILITY_RAMDISK_RAW_OPEN | FSA_CAPABILITY_OTHER_RAW_OPEN)
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FSAClientHandle *patchedClientHandles[PATCHED_CLIENT_HANDLES_MAX_COUNT];
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int (*const IOS_ResourceReply)(void *, int32_t) = (void *) 0x107f6b4c;
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@ -64,7 +44,7 @@ int FSA_IOCTLV_HOOK(ResourceRequest *param_1, uint32_t u2, uint32_t u3) {
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int toBeRestored = 0;
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for (int i = 0; i < PATCHED_CLIENT_HANDLES_MAX_COUNT; i++) {
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if (patchedClientHandles[i] == clientHandle) {
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clientHandle->processData->capabilityMask = 0xffffffffffffffffL;
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clientHandle->processData->capabilityMask = 0xffffffffffffffffL & ~DISABLED_CAPABILITIES;
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// printf("IOCTL: Force mask to 0xFFFFFFFFFFFFFFFF for client %08X\n", (uint32_t) clientHandle);
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toBeRestored = 1;
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break;
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@ -89,7 +69,7 @@ int FSA_IOCTL_HOOK(ResourceRequest *request, uint32_t u2, uint32_t u3, uint32_t
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for (int i = 0; i < PATCHED_CLIENT_HANDLES_MAX_COUNT; i++) {
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if (patchedClientHandles[i] == clientHandle) {
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// printf("IOCTL: Force mask to 0xFFFFFFFFFFFFFFFF for client %08X\n", (uint32_t) clientHandle);
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clientHandle->processData->capabilityMask = 0xffffffffffffffffL;
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clientHandle->processData->capabilityMask = 0xffffffffffffffffL & ~DISABLED_CAPABILITIES;
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toBeRestored = 1;
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break;
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}
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