mirror of
https://gitlab.com/Nanolx/homebrewfilter.git
synced 2024-11-28 20:14:22 +01:00
70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
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#include <gccore.h>
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#include <ogc/machine/processor.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "RuntimeIOSPatch.h"
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#define MEM_PROT 0xD8B420A
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const u8 isfs_permissions_old[] = { 0x42, 0x8B, 0xD0, 0x01, 0x25, 0x66 };
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const u8 isfs_permissions_patch[] = { 0x42, 0x8B, 0xE0, 0x01, 0x25, 0x66 };
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const u8 setuid_old[] = { 0xD1, 0x2A, 0x1C, 0x39 };
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const u8 setuid_patch[] = { 0x46, 0xC0 };
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const u8 es_identify_old[] = { 0x28, 0x03, 0xD1, 0x23 };
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const u8 es_identify_patch[] = { 0x00, 0x00 };
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const u8 hash_old[] = { 0x20, 0x07, 0x4B, 0x0B };
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const u8 hash_patch[] = { 0x00 };
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const u8 addticket_vers_check[] = { 0xD2, 0x01, 0x4E, 0x56 };
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const u8 addticket_patch[] = { 0xE0 };
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u32 apply_patch(const char *name, const u8 *old, u32 old_size, const u8 *patch, u32 patch_size, u32 patch_offset)
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{
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// printf("Applying patch %s.....", name);
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u8 *ptr = (u8 *) 0x93400000;
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u32 i, found = 0;
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u8 *start;
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while ((u32) ptr < (0x94000000 - old_size))
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{
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if(!memcmp(ptr, old, old_size))
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{
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found++;
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start = ptr + patch_offset;
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for (i = 0; i < patch_size; i++)
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*(start + i) = patch[i];
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ptr += patch_size;
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DCFlushRange((u8 *) (((u32) start) >> 5 << 5), (patch_size >> 5 << 5) + 64);
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}
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ptr++;
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}
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// if(found)
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// printf("Patched\n");
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// else
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// printf("\n");
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return found;
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}
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u32 runtimePatchApply()
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{
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u32 count = 0;
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write16(MEM_PROT, 0);
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count += apply_patch("Trucha", hash_old,
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sizeof(hash_old), hash_patch, sizeof(hash_patch), 1);
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count += apply_patch("ES_Identify", es_identify_old,
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sizeof(es_identify_old), es_identify_patch, sizeof(es_identify_patch),
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2);
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count += apply_patch("NAND Permissions", isfs_permissions_old,
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sizeof(isfs_permissions_old), isfs_permissions_patch,
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sizeof(isfs_permissions_patch), 0);
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count += apply_patch("add ticket patch", addticket_vers_check,
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sizeof(addticket_vers_check), addticket_patch, sizeof(addticket_patch),
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0);
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count += apply_patch("ES_SetUID", setuid_old, sizeof(setuid_old),
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setuid_patch, sizeof(setuid_patch), 0);
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write16(MEM_PROT, 1);
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return count;
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}
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