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git subrepo pull emummc

Browse source 
subrepo:
  subdir:   "emummc"
  merged:   "d12dd546"
upstream:
  origin:   "https://github.com/m4xw/emuMMC"
  branch:   "develop"
  commit:   "d12dd546"
git-subrepo:
  version:  "0.4.1"
  origin:   "???"
  commit:   "???"
This commit is contained in:
Michael Scire 2020-03-06 16:09:14 -08:00
parent 259a1a7513
commit 78447fc995
4 changed files with 22 additions and 26 deletions
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6
emummc/.gitrepo
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@ -6,7 +6,7 @@
[subrepo]
remote = https://github.com/m4xw/emuMMC
branch = develop
commit = bd81a674a946c30b566e1732a95c18f19b701558
parent = 6ee525201ccef107c61d81ba73c891e3eb5f0215
commit = d12dd5464422029a1e5601916517ec3f1c81d8d0
parent = 259a1a7513236a1de4d373bc6cb99032ede2c626
method = rebase
cmdver = 0.4.0
cmdver = 0.4.1

14
emummc/README.md
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@ -1,21 +1,21 @@
# emuMMC
*A SDMMC driver replacement for Nintendo's Filesystem Services, by **m4xw***
*A SDMMC driver replacement for Nintendo's Filesystem Services, by **m4xw***
### Supported Horizon Versions
**1.0.0 - 9.1.0**
## Features
* Arbitrary SDMMC backend selection
* Arbitrary SDMMC backend selection
**This allows loading eMMC from SD or even SD from eMMC**
* On the fly hooking / patching, fully self-infesting
* On the fly hooking / patching, fully self-infesting
**Only one payload required for all versions!**
* File-based SDMMC backend support (from SD)
* File-based SDMMC backend support (from SD)
**This allows loading eMMC images from hekate-backups (split or not)**
* SDMMC device based sector offset (*currently eMMC only*)
* SDMMC device based sector offset (*currently eMMC only*)
**Raw partition support for eMMC from SD with less performance overhead**
* Full support for `/Nintendo` folder redirection to a arbitrary path
* Full support for `/Nintendo` folder redirection to a arbitrary path
**No 8 char length restriction!**
* exosphere based context configuration
* exosphere based context configuration
**This includes full support for multiple emuMMC images**
## Compiling

6
emummc/source/FS/offsets/100.h
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@ -48,10 +48,8 @@
// Nintendo Paths
#define FS_OFFSET_100_NINTENDO_PATHS \
{ \
{.opcode_reg = 9, .adrp_offset = 0x00032C58, .add_rel_offset = 4}, \
{.opcode_reg = 8, .adrp_offset = 0x00032C60, .add_rel_offset = 4}, \
{.opcode_reg = 9, .adrp_offset = 0x00032F3C, .add_rel_offset = 4}, \
{.opcode_reg = 8, .adrp_offset = 0x00032F44, .add_rel_offset = 4}, \
{.opcode_reg = 8, .adrp_offset = 0x00032C58, .add_rel_offset = 8}, \
{.opcode_reg = 9, .adrp_offset = 0x00032F40, .add_rel_offset = 8}, \
{.opcode_reg = 0, .adrp_offset = 0, .add_rel_offset = 0}, \
}

22
emummc/source/main.c
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@ -48,6 +48,9 @@ extern char __argdata__;
// TODO
static char nintendo_path[0x80] = "Nintendo";
// 1.0.0 requires special path handling because it has separate album and contents paths.
#define FS_100_ALBUM_PATH 0
#define FS_100_CONTENTS_PATH 1
static char nintendo_path_album_100[0x100] = "/Nintendo/Album";
static char nintendo_path_contents_100[0x100] = "/Nintendo/Contents";
@ -275,23 +278,18 @@ void setup_nintendo_paths(void)
// 1.0.0 needs special handling because it uses two paths.
// Do album path
{
int path_len = snprintf(nintendo_path_album_100, sizeof(nintendo_path_album_100), "/%s/Album", nintendo_path);
snprintf(nintendo_path_album_100, sizeof(nintendo_path_album_100), "/%s/Album", nintendo_path);
intptr_t nintendo_album_path_location = (intptr_t)&nintendo_path_album_100;
intptr_t album_path_location = nintendo_album_path_location + path_len - 6; // "/Album"
uintptr_t fs_n_adrp_opcode_location = INJECT_OFFSET(uintptr_t, fs_offsets->nintendo_paths[0].adrp_offset);
uintptr_t fs_adrp_opcode_location = INJECT_OFFSET(uintptr_t, fs_offsets->nintendo_paths[1].adrp_offset);
write_adrp_add(fs_offsets->nintendo_paths[0].opcode_reg, fs_n_adrp_opcode_location, fs_offsets->nintendo_paths[0].add_rel_offset, nintendo_album_path_location);
write_adrp_add(fs_offsets->nintendo_paths[1].opcode_reg, fs_adrp_opcode_location, fs_offsets->nintendo_paths[1].add_rel_offset, album_path_location);
uintptr_t fs_adrp_opcode_location = INJECT_OFFSET(uintptr_t, fs_offsets->nintendo_paths[FS_100_ALBUM_PATH].adrp_offset);
write_adrp_add(fs_offsets->nintendo_paths[FS_100_ALBUM_PATH].opcode_reg, fs_adrp_opcode_location, fs_offsets->nintendo_paths[FS_100_ALBUM_PATH].add_rel_offset, nintendo_album_path_location);
}
// Do contents path
{
int path_len = snprintf(nintendo_path_contents_100, sizeof(nintendo_path_contents_100), "/%s/Contents", nintendo_path);
snprintf(nintendo_path_contents_100, sizeof(nintendo_path_contents_100), "/%s/Contents", nintendo_path);
intptr_t nintendo_contents_path_location = (intptr_t)&nintendo_path_contents_100;
intptr_t contents_path_location = nintendo_contents_path_location + path_len - 9; // "/Contents"
uintptr_t fs_n_adrp_opcode_location = INJECT_OFFSET(uintptr_t, fs_offsets->nintendo_paths[2].adrp_offset);
uintptr_t fs_adrp_opcode_location = INJECT_OFFSET(uintptr_t, fs_offsets->nintendo_paths[3].adrp_offset);
write_adrp_add(fs_offsets->nintendo_paths[2].opcode_reg, fs_n_adrp_opcode_location, fs_offsets->nintendo_paths[2].add_rel_offset, nintendo_contents_path_location);
write_adrp_add(fs_offsets->nintendo_paths[3].opcode_reg, fs_adrp_opcode_location, fs_offsets->nintendo_paths[3].add_rel_offset, contents_path_location);
uintptr_t fs_adrp_opcode_location = INJECT_OFFSET(uintptr_t, fs_offsets->nintendo_paths[FS_100_CONTENTS_PATH].adrp_offset);
write_adrp_add(fs_offsets->nintendo_paths[FS_100_CONTENTS_PATH].opcode_reg, fs_adrp_opcode_location, fs_offsets->nintendo_paths[FS_100_CONTENTS_PATH].add_rel_offset, nintendo_contents_path_location);
}
}
}