├── .gitignore ├── .travis.yml ├── CMakeLists.txt ├── COPYING ├── HISTORY.md ├── Makefile ├── README.md ├── romdir.c ├── romdir.h └── romdirfs.c /.gitignore: -------------------------------------------------------------------------------- 1 | *.bin 2 | *.img 3 | *.o 4 | build/ 5 | romdirfs 6 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: c 2 | 3 | compiler: 4 | - gcc 5 | - clang 6 | 7 | before_install: sudo apt-get install -y libfuse-dev 8 | 9 | install: 10 | - make CC=$CC 11 | - sudo make install prefix=/usr/local 12 | 13 | script: romdirfs --version # no tests yet 14 | -------------------------------------------------------------------------------- /CMakeLists.txt: -------------------------------------------------------------------------------- 1 | PROJECT("romdirfs" C) 2 | 3 | CMAKE_MINIMUM_REQUIRED(VERSION 2.6) 4 | 5 | INCLUDE(${CMAKE_ROOT}/Modules/FindPkgConfig.cmake) 6 | PKG_CHECK_MODULES(FUSE fuse>=2.6) 7 | 8 | SET(CMAKE_C_FLAGS "-Wall -Werror -O2") 9 | ADD_DEFINITIONS(${FUSE_CFLAGS_OTHER}) 10 | #ADD_DEFINITIONS(-DUSE_MMAP) 11 | INCLUDE_DIRECTORIES(${FUSE_INCLUDE_DIRS}) 12 | 13 | ADD_EXECUTABLE(romdirfs romdir.c romdirfs.c) 14 | TARGET_LINK_LIBRARIES(romdirfs ${FUSE_LIBRARIES}) 15 | INSTALL(TARGETS romdirfs DESTINATION bin) 16 | -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /HISTORY.md: -------------------------------------------------------------------------------- 1 | History 2 | ======= 3 | 4 | v1.2 (Apr 12 2012) 5 | ------------------ 6 | 7 | * Migrate project from hg to git. 8 | * Add Makefile. 9 | * Move source files to root folder. 10 | * Let `romdir_extract()` return number of bytes written. Fixes a compile error 11 | under gcc 4.6.1. 12 | * Support Mac OS X. 13 | * Add Travis CI config. 14 | * Update documentation and convert it to markdown. 15 | 16 | v1.1 (Aug 25 2009) 17 | ------------------ 18 | 19 | * Read whole input file into memory rather than reading each module's data. 20 | * Define `-DUSE_MMAP` to map the input file into memory with `mmap()`. 21 | * Add `EXTINFO` information to `romfile_t` struct. 22 | 23 | v1.0 (Jul 15 2009) 24 | ------------------ 25 | 26 | * Initial public release 27 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | CC = gcc 2 | INSTALL = install 3 | STRIP = strip 4 | 5 | CFLAGS = -Wall -Werror -O2 6 | CFLAGS += $(shell pkg-config --cflags fuse) 7 | LIBS = $(shell pkg-config --libs fuse) 8 | prefix = $(HOME) 9 | 10 | PROG = romdirfs 11 | OBJS += romdir.o 12 | OBJS += romdirfs.o 13 | 14 | all: $(PROG) 15 | 16 | install: $(PROG) 17 | $(INSTALL) -d -m 755 '$(prefix)/bin/' 18 | $(INSTALL) $(PROG) '$(prefix)/bin/' 19 | 20 | $(PROG): $(OBJS) 21 | $(CC) $(CFLAGS) -o $@ $? $(LIBS) 22 | $(STRIP) $@ 23 | 24 | $(OBJS): romdir.h 25 | 26 | clean: 27 | $(RM) $(PROG) $(OBJS) 28 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # romdirfs - ROMDIR filesystem in userspace 2 | 3 | romdirfs is a userspace filesystem for Linux and macOS that allows you to 4 | access the IOP modules contained in PS2 IOPRP images and BIOS dumps. The tool 5 | can mount the so-called ROMDIR "filesystem" in those PS2 files to a directory, 6 | thereby mapping the included IOP modules to actual (read-only) files. 7 | 8 | I mainly developed romdirfs because I was interested in the technology behind 9 | [FUSE] and wanted to implement a simple filesystem on my own. (With FUSE, you 10 | can easily export a virtual filesystem to the Linux kernel without root 11 | privileges.) 12 | 13 | More recently, I created a [Rust spike] for the same reason. 14 | 15 | ## Installation 16 | 17 | romdirfs requires a working FUSE implementation. Under Ubuntu/Debian, you can 18 | install the package `libfuse-dev` (version 2.6 or higher). Get [FUSE for macOS] 19 | if you are on macOS. 20 | 21 | To build and install romdirfs, simply run: 22 | 23 | $ make 24 | $ make install 25 | 26 | CMake is supported too: 27 | 28 | $ mkdir build 29 | $ cd build/ 30 | $ cmake .. 31 | $ make 32 | $ make install 33 | 34 | ## Usage 35 | 36 | usage: romdirfs [options] 37 | must be a PS2 IOPRP image or BIOS dump 38 | 39 | ROMDIRFS options: 40 | -V, --version print version 41 | -h, --help print help 42 | -D, -o romdirfs_debug print some debugging information 43 | 44 | You can get the complete option list with `--help`. 45 | 46 | To unmount the filesystem on Linux: 47 | 48 | $ fusermount -u 49 | 50 | To unmount the filesystem on macOS: 51 | 52 | $ umount 53 | 54 | ## Examples 55 | 56 | Mounting a PS2 IOPRP image: 57 | 58 | $ mkdir /tmp/romdir 59 | $ romdirfs ioprp15.img /tmp/romdir/ 60 | 61 | $ mount | grep romdirfs 62 | romdirfs on /tmp/romdir type fuse.romdirfs (rw,nosuid,nodev,user=misfire) 63 | 64 | $ ls -l /tmp/romdir/ 65 | total 0 66 | -r--r--r-- 1 root root 28533 1970-01-01 01:00 CDVDFSV 67 | -r--r--r-- 1 root root 35317 1970-01-01 01:00 CDVDMAN 68 | -r--r--r-- 1 root root 208 1970-01-01 01:00 EXTINFO 69 | -r--r--r-- 1 root root 9085 1970-01-01 01:00 FILEIO 70 | -r--r--r-- 1 root root 0 1970-01-01 01:00 RESET 71 | -r--r--r-- 1 root root 128 1970-01-01 01:00 ROMDIR 72 | -r--r--r-- 1 root root 9441 1970-01-01 01:00 SIFCMD 73 | 74 | $ hd /tmp/romdir/ROMDIR 75 | 00000000 52 45 53 45 54 00 00 00 00 00 08 00 00 00 00 00 |RESET...........| 76 | 00000010 52 4f 4d 44 49 52 00 00 00 00 44 00 80 00 00 00 |ROMDIR....D.....| 77 | 00000020 45 58 54 49 4e 46 4f 00 00 00 00 00 d0 00 00 00 |EXTINFO.........| 78 | 00000030 53 49 46 43 4d 44 00 00 00 00 28 00 e1 24 00 00 |SIFCMD....(..$..| 79 | 00000040 46 49 4c 45 49 4f 00 00 00 00 20 00 7d 23 00 00 |FILEIO.... .}#..| 80 | 00000050 43 44 56 44 4d 41 4e 00 00 00 1c 00 f5 89 00 00 |CDVDMAN.........| 81 | 00000060 43 44 56 44 46 53 56 00 00 00 20 00 75 6f 00 00 |CDVDFSV... .uo..| 82 | 00000070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 83 | 00000080 84 | 85 | $ fusermount -u /tmp/romdir/ 86 | 87 | Mounting a PS2 BIOS dump: 88 | 89 | $ romdirfs SCPH-30004R_BIOS_V4_PAL_160.BIN /tmp/romdir/ 90 | 91 | $ ls /tmp/romdir/ 92 | ADDDRV EXTINFO IOPBOOT MODLOAD ROMDRV SYSMEM VBLANK 93 | ATAD FILEIO IOPBTCON2 OSDCNF ROMVER TBIN VERSTR 94 | CDVDFSV FNTIMAGE IOPBTCONF OSDSND SBIN TESTMODE XCDVDFSV 95 | CDVDMAN FONTM KERNEL OSDSYS SECRMAN TESTSPU XCDVDMAN 96 | CLEARSPU HDDLOAD KROM PADMAN SIFCMD TEXIMAGE XFILEIO 97 | DMACMAN HDDOSD KROMG PS1DRV SIFINIT THREADMAN XLOADFILE 98 | EECONF HEAPLIB LIBSD PS2LOGO SIFMAN TIMEMANI XMCMAN 99 | EELOAD ICOIMAGE LOADCORE RDRAM SIO2MAN TIMEMANP XMCSERV 100 | EELOADCNF IGREETING LOADFILE REBOOT SNDIMAGE TPADMAN XMTAPMAN 101 | EENULL INTRMANI LOGO RESET SSBUSC TSIO2MAN XPADMAN 102 | EESYNC INTRMANP MCMAN RMRESET STDIO TZLIST XSIFCMD 103 | EXCEPMAN IOMAN MCSERV ROMDIR SYSCLIB UDNL XSIO2MAN 104 | 105 | $ cat /tmp/romdir/ROMVER 106 | 0160EC20010704 107 | 108 | $ fusermount -u /tmp/romdir/ 109 | 110 | ## Disclaimer 111 | 112 | THIS PROGRAM IS NOT LICENSED, ENDORSED, NOR SPONSORED BY SONY COMPUTER 113 | ENTERTAINMENT, INC. ALL TRADEMARKS ARE PROPERTY OF THEIR RESPECTIVE OWNERS. 114 | 115 | romdirfs comes with ABSOLUTELY NO WARRANTY. It is covered by the GNU General 116 | Public License. Please see file `COPYING` for further information. 117 | 118 | ## Special Thanks 119 | 120 | Thanks goes out to the authors of the following programs: 121 | 122 | * RomDir by Alex Lau (http://alexlau.8k.com) 123 | * SSHFS by Miklos Seredi () 124 | * WDFS by Jens M. Noedler () 125 | 126 | 127 | [FUSE]: https://github.com/libfuse/libfuse 128 | [FUSE for macOS]: https://github.com/osxfuse/osxfuse 129 | [Rust spike]: https://github.com/mlafeldt/romdirfs/pull/2 130 | -------------------------------------------------------------------------------- /romdir.c: -------------------------------------------------------------------------------- 1 | /* 2 | * romdir.c - read files from ROMDIR filesystem 3 | * 4 | * Copyright (C) 2009 Mathias Lafeldt 5 | * 6 | * This file is part of romdirfs. 7 | * 8 | * romdirfs is free software: you can redistribute it and/or modify 9 | * it under the terms of the GNU General Public License as published by 10 | * the Free Software Foundation, either version 3 of the License, or 11 | * (at your option) any later version. 12 | * 13 | * romdirfs is distributed in the hope that it will be useful, 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | * GNU General Public License for more details. 17 | * 18 | * You should have received a copy of the GNU General Public License 19 | * along with romdirfs. If not, see . 20 | */ 21 | 22 | #include 23 | #include 24 | #include 25 | #include 26 | #include 27 | #include 28 | #include 29 | #include "romdir.h" 30 | 31 | /** 32 | * roment_t - ROMDIR entry 33 | * @name: entry name 34 | * @xi_size: size of information in "EXTINFO" for this entry 35 | * @size: entry size 36 | * 37 | * This data structure represents one entry in the ROMDIR entry table. The 38 | * first entry is always "RESET", followed by "ROMDIR" and "EXTINFO". 39 | */ 40 | typedef struct _roment { 41 | char name[10]; 42 | uint16_t xi_size; 43 | uint32_t size; 44 | } roment_t; 45 | 46 | /** 47 | * strhash - String hashing function as specified by the ELF ABI. 48 | * @name: string to calculate hash from 49 | * @return: 32-bit hash value 50 | */ 51 | uint32_t strhash(const char *name) 52 | { 53 | const uint8_t *p = (uint8_t*)name; 54 | uint32_t h = 0, g; 55 | 56 | while (*p) { 57 | h = (h << 4) + *p++; 58 | if ((g = (h & 0xf0000000)) != 0) 59 | h ^= (g >> 24); 60 | h &= ~g; 61 | } 62 | 63 | return h; 64 | } 65 | 66 | #define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1)) 67 | 68 | /* 69 | * Parse buffer @buf for ROMDIR entries and add them to @dir. 70 | */ 71 | int romdir_read(const uint8_t *buf, size_t length, romdir_t *dir) 72 | { 73 | roment_t *entry = NULL; 74 | romfile_t *file = NULL, *xinfo = NULL; 75 | off_t i, off = 0, xoff = 0; 76 | 77 | /* find ROMDIR entry named "RESET" */ 78 | for (i = 0; i < length; i += sizeof(roment_t)) { 79 | if (!strcmp((char*)&buf[i], "RESET")) { 80 | entry = (roment_t*)&buf[i]; 81 | break; 82 | } 83 | } 84 | 85 | if (entry == NULL) 86 | return -1; /* RESET not found */ 87 | 88 | /* add ROMDIR entries to queue */ 89 | do { 90 | /* ignore "-" entries containing only zeros */ 91 | if (entry->name[0] != '-') { 92 | file = (romfile_t*)calloc(1, sizeof(romfile_t)); 93 | if (file == NULL) 94 | return -1; 95 | 96 | strcpy(file->name, entry->name); 97 | file->hash = strhash(file->name); 98 | file->offset = off; 99 | file->size = entry->size; 100 | if (file->size > 0) 101 | file->data = &buf[off]; 102 | 103 | if (entry->xi_size) { 104 | file->xi_offset = xoff; 105 | file->xi_size = entry->xi_size; 106 | xoff += file->xi_size; 107 | } 108 | 109 | STAILQ_INSERT_TAIL(dir, file, node); 110 | } 111 | 112 | /* offset must be aligned to 16 bytes */ 113 | off += ALIGN(entry->size, 0x10); 114 | } while ((++entry)->name[0]); 115 | 116 | /* get extinfo for each file */ 117 | xinfo = romdir_find_file(dir, HASH_EXTINFO); 118 | if (xinfo != NULL) { 119 | STAILQ_FOREACH(file, dir, node) { 120 | if (file->hash != HASH_EXTINFO && file->xi_size > 0) 121 | file->xi_data = xinfo->data + file->xi_offset; 122 | } 123 | } 124 | 125 | return 0; 126 | } 127 | 128 | /* 129 | * Extract @file from ROMDIR fs to @path. 130 | */ 131 | int romdir_extract(const romfile_t *file, const char *path) 132 | { 133 | char fullpath[1024] = { 0 }; 134 | int fd, ret = 0; 135 | 136 | if (path != NULL) { 137 | strcpy(fullpath, path); 138 | strcat(fullpath, "/"); 139 | } 140 | 141 | strcat(fullpath, file->name); 142 | 143 | fd = open(fullpath, O_CREAT | O_WRONLY | O_TRUNC, 0644); 144 | if (fd == -1) 145 | return -1; 146 | 147 | if (file->data != NULL) 148 | ret = write(fd, file->data, file->size); 149 | 150 | close(fd); 151 | 152 | return ret; 153 | } 154 | 155 | /* 156 | * Search @dir for file by @hash. 157 | */ 158 | romfile_t *romdir_find_file(const romdir_t *dir, uint32_t hash) 159 | { 160 | romfile_t *file; 161 | 162 | STAILQ_FOREACH(file, dir, node) { 163 | if (hash == file->hash) 164 | return file; 165 | } 166 | 167 | return NULL; 168 | } 169 | -------------------------------------------------------------------------------- /romdir.h: -------------------------------------------------------------------------------- 1 | /* 2 | * romdir.h - read files from ROMDIR filesystem 3 | * 4 | * Copyright (C) 2009 Mathias Lafeldt 5 | * 6 | * This file is part of romdirfs. 7 | * 8 | * romdirfs is free software: you can redistribute it and/or modify 9 | * it under the terms of the GNU General Public License as published by 10 | * the Free Software Foundation, either version 3 of the License, or 11 | * (at your option) any later version. 12 | * 13 | * romdirfs is distributed in the hope that it will be useful, 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | * GNU General Public License for more details. 17 | * 18 | * You should have received a copy of the GNU General Public License 19 | * along with romdirfs. If not, see . 20 | */ 21 | 22 | #ifndef _ROMDIR_H_ 23 | #define _ROMDIR_H_ 24 | 25 | #include 26 | #include 27 | 28 | /** 29 | * romfile_t - ROMDIR file information 30 | * @name: file name 31 | * @hash: file name hash for fast searching 32 | * @offset: file offset of data 33 | * @size: file size 34 | * @data: pointer to file data, or NULL if @size is 0 35 | * @xi_offset: offset of information in EXTINFO for this entry 36 | * @xi_size: size of information in EXTINFO for this entry 37 | * @xi_data: pointer to EXTINFO data, or NULL if @xi_size is 0 38 | * 39 | * This structure is used to hold the data and metadata of a ROMDIR file. 40 | */ 41 | typedef struct _romfile { 42 | char name[10]; 43 | uint32_t hash; 44 | off_t offset; 45 | size_t size; 46 | const uint8_t *data; 47 | off_t xi_offset; 48 | size_t xi_size; 49 | const uint8_t *xi_data; 50 | 51 | STAILQ_ENTRY(_romfile) node; 52 | } romfile_t; 53 | 54 | /* Queue to hold multiple ROMDIR files */ 55 | typedef STAILQ_HEAD(_romdir, _romfile) romdir_t; 56 | 57 | /* Some well-known file name hashes */ 58 | #define HASH_RESET 0x0056a7a4 59 | #define HASH_ROMDIR 0x057418e2 60 | #define HASH_EXTINFO 0x0ad8e2ef 61 | #define HASH_ROMVER 0x05742aa2 62 | #define HASH_OSDSYS 0x054798e3 63 | 64 | uint32_t strhash(const char *name); 65 | int romdir_read(const uint8_t *buf, size_t length, romdir_t *dir); 66 | int romdir_extract(const romfile_t *file, const char *path); 67 | romfile_t *romdir_find_file(const romdir_t *dir, uint32_t hash); 68 | 69 | #endif /* _ROMDIR_H_ */ 70 | -------------------------------------------------------------------------------- /romdirfs.c: -------------------------------------------------------------------------------- 1 | /* 2 | * romdirfs.c - ROMDIR filesystem in userspace 3 | * 4 | * Copyright (C) 2009 Mathias Lafeldt 5 | * 6 | * This file is part of romdirfs. 7 | * 8 | * romdirfs is free software: you can redistribute it and/or modify 9 | * it under the terms of the GNU General Public License as published by 10 | * the Free Software Foundation, either version 3 of the License, or 11 | * (at your option) any later version. 12 | * 13 | * romdirfs is distributed in the hope that it will be useful, 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | * GNU General Public License for more details. 17 | * 18 | * You should have received a copy of the GNU General Public License 19 | * along with romdirfs. If not, see . 20 | */ 21 | 22 | #include 23 | #include 24 | #include 25 | #include 26 | #include 27 | #define FUSE_USE_VERSION 26 28 | #include 29 | #include 30 | #include 31 | #include 32 | #include 33 | #include 34 | #include 35 | #include 36 | #include "romdir.h" 37 | 38 | #define APP_NAME "romdirfs" 39 | #define APP_NAME_BIG "ROMDIRFS" 40 | #define APP_VERSION "1.2" 41 | 42 | static romdir_t g_romdir = STAILQ_HEAD_INITIALIZER(g_romdir); 43 | 44 | struct config { 45 | char *progname; 46 | char *filename; 47 | int debug; 48 | }; 49 | 50 | static struct config g_config = { 51 | .progname = NULL, 52 | .filename = NULL, 53 | .debug = 0 54 | }; 55 | 56 | #define D_PRINTF(args...) \ 57 | do { if (g_config.debug) fprintf(stderr, args); } while (0) 58 | 59 | #define HELP_TEXT \ 60 | "usage: "APP_NAME" [options]\n" \ 61 | " must be a PS2 IOPRP image or BIOS dump\n\n" \ 62 | "ROMDIRFS options:\n" \ 63 | " -V, --version print version\n" \ 64 | " -h, --help print help\n" \ 65 | " -D, -o romdirfs_debug print some debugging information\n\n" 66 | 67 | #define ROMDIRFS_OPT(t, p, v) { t, offsetof(struct config, p), v } 68 | 69 | enum { 70 | KEY_HELP, 71 | KEY_VERSION, 72 | KEY_DEBUG 73 | }; 74 | 75 | static struct fuse_opt g_opts[] = { 76 | FUSE_OPT_KEY("-h", KEY_HELP), 77 | FUSE_OPT_KEY("--help", KEY_HELP), 78 | FUSE_OPT_KEY("-V", KEY_VERSION), 79 | FUSE_OPT_KEY("--version", KEY_VERSION), 80 | FUSE_OPT_KEY("-D", KEY_DEBUG), 81 | FUSE_OPT_KEY("romdirfs_debug", KEY_DEBUG), 82 | ROMDIRFS_OPT("-D", debug, 1), 83 | ROMDIRFS_OPT("romdirfs_debug", debug, 1), 84 | FUSE_OPT_END 85 | }; 86 | 87 | 88 | /* 89 | * Filesystem operations supported by ROMDIRFS 90 | */ 91 | 92 | static int romdirfs_getattr(const char *path, struct stat *stbuf) 93 | { 94 | romfile_t *file; 95 | uint32_t hash; 96 | 97 | memset(stbuf, 0, sizeof(struct stat)); 98 | 99 | if (*path != '/') 100 | return -ENOENT; 101 | if (path[1] == '\0') { /* root dir */ 102 | stbuf->st_mode = S_IFDIR | 0555; 103 | stbuf->st_nlink = 2; 104 | return 0; 105 | } else { 106 | hash = strhash(path + 1); 107 | file = romdir_find_file(&g_romdir, hash); 108 | if (file != NULL) { 109 | stbuf->st_mode = S_IFREG | 0444; 110 | stbuf->st_nlink = 1; 111 | stbuf->st_size = file->size; 112 | /* TODO set file time and user/group IDs */ 113 | return 0; 114 | } 115 | } 116 | 117 | return -ENOENT; 118 | } 119 | 120 | static int romdirfs_readdir(const char *path, void *buf, fuse_fill_dir_t filler, 121 | off_t offset, struct fuse_file_info *fi) 122 | { 123 | romfile_t *file; 124 | 125 | if (strcmp(path, "/")) 126 | return -ENOENT; 127 | 128 | filler(buf, ".", NULL, 0); 129 | filler(buf, "..", NULL, 0); 130 | 131 | STAILQ_FOREACH(file, &g_romdir, node) 132 | filler(buf, file->name, NULL, 0); 133 | 134 | return 0; 135 | } 136 | 137 | static int romdirfs_open(const char *path, struct fuse_file_info *fi) 138 | { 139 | romfile_t *file; 140 | uint32_t hash; 141 | 142 | if (*path != '/') 143 | return -ENOENT; 144 | 145 | hash = strhash(path + 1); 146 | file = romdir_find_file(&g_romdir, hash); 147 | if (file != NULL) { 148 | if ((fi->flags & 3) != O_RDONLY) 149 | return -EACCES; 150 | else 151 | return 0; 152 | } 153 | 154 | return -ENOENT; 155 | } 156 | 157 | static int romdirfs_read(const char *path, char *buf, size_t size, off_t offset, 158 | struct fuse_file_info *fi) 159 | { 160 | romfile_t *file; 161 | uint32_t hash; 162 | size_t len; 163 | 164 | if (*path != '/') 165 | return -ENOENT; 166 | 167 | hash = strhash(path + 1); 168 | file = romdir_find_file(&g_romdir, hash); 169 | if (file != NULL) { 170 | len = file->size; 171 | if (offset < len){ 172 | if (offset + size > len) 173 | size = len - offset; 174 | memcpy(buf, file->data + offset, size); 175 | } else { 176 | size = 0; 177 | } 178 | return size; 179 | } 180 | 181 | return -ENOENT; 182 | } 183 | 184 | static struct fuse_operations romdirfs_ops = { 185 | .getattr = romdirfs_getattr, 186 | .readdir = romdirfs_readdir, 187 | .open = romdirfs_open, 188 | .read = romdirfs_read 189 | }; 190 | 191 | static int romdirfs_opt_proc(void *data, const char *arg, int key, 192 | struct fuse_args *outargs) 193 | { 194 | switch (key) { 195 | case KEY_HELP: 196 | fprintf(stderr, HELP_TEXT); 197 | fuse_opt_add_arg(outargs, "-ho"); 198 | fuse_main(outargs->argc, outargs->argv, &romdirfs_ops, NULL); 199 | exit(1); 200 | 201 | case KEY_VERSION: 202 | fprintf(stderr, "%s version %s\n", APP_NAME_BIG, APP_VERSION); 203 | fuse_opt_add_arg(outargs, "--version"); 204 | fuse_main(outargs->argc, outargs->argv, &romdirfs_ops, NULL); 205 | exit(0); 206 | 207 | case KEY_DEBUG: 208 | /* add -f for foreground operation */ 209 | return fuse_opt_add_arg(outargs, "-f"); 210 | 211 | case FUSE_OPT_KEY_OPT: 212 | return 1; 213 | 214 | case FUSE_OPT_KEY_NONOPT: 215 | if (g_config.filename == NULL) { 216 | g_config.filename = strdup(arg); 217 | return 0; 218 | } 219 | return 1; 220 | 221 | default: 222 | fprintf(stderr, "%s: unknown option '%s'\n", 223 | g_config.progname, arg); 224 | exit(1); 225 | } 226 | 227 | return 0; 228 | } 229 | 230 | int main(int argc, char *argv[]) 231 | { 232 | struct fuse_args args = FUSE_ARGS_INIT(argc, argv); 233 | romfile_t *file = NULL; 234 | struct stat sb; 235 | uint8_t *buf = NULL; 236 | int fd, ret; 237 | 238 | g_config.progname = argv[0]; 239 | 240 | if (fuse_opt_parse(&args, &g_config, g_opts, romdirfs_opt_proc) == -1) 241 | exit(1); 242 | 243 | if (g_config.filename == NULL) { 244 | fprintf(stderr, "%s: missing file\n", g_config.progname); 245 | exit(1); 246 | } 247 | 248 | fd = open(g_config.filename, O_RDONLY); 249 | if (fd == -1) { 250 | fprintf(stderr, "Error: could not open file '%s'\n", 251 | g_config.filename); 252 | exit(1); 253 | } 254 | if (fstat(fd, &sb) == -1) { 255 | perror("fstat"); 256 | exit(1); 257 | } 258 | if (!S_ISREG(sb.st_mode)) { 259 | fprintf(stderr, "Error: %s is not a file\n", g_config.filename); 260 | exit(1); 261 | } 262 | if (!sb.st_size || sb.st_size > (4*1024*1024)) { /* BIOS is 4MB in size */ 263 | fprintf(stderr, "Error: invalid file size\n"); 264 | exit(1); 265 | } 266 | 267 | #ifdef USE_MMAP 268 | /* map file into memory */ 269 | buf = mmap(NULL, sb.st_size, PROT_READ, MAP_SHARED, fd, 0); 270 | if (buf == MAP_FAILED) { 271 | perror("mmap"); 272 | exit(1); 273 | } 274 | #else 275 | /* read file contents into allocated memory */ 276 | buf = malloc(sb.st_size); 277 | if (buf == NULL) { 278 | perror("malloc"); 279 | exit(1); 280 | } 281 | if (read(fd, buf, sb.st_size) != sb.st_size) { 282 | perror("read"); 283 | exit(1); 284 | } 285 | #endif 286 | if (close(fd) == -1) { 287 | perror("close"); 288 | exit(1); 289 | } 290 | 291 | /* get ROMDIR entries */ 292 | STAILQ_INIT(&g_romdir); 293 | ret = romdir_read(buf, sb.st_size, &g_romdir); 294 | if (ret < 0) { 295 | fprintf(stderr, "Error: could not read ROMDIR entries\n"); 296 | exit(1); 297 | } 298 | 299 | D_PRINTF("ROMDIR entries:\n"); 300 | D_PRINTF("%-10s %-8s %-17s %8s %-8s %8s\n", 301 | "name", "hash", "offset", "size", "xi_off", "xi_size"); 302 | STAILQ_FOREACH(file, &g_romdir, node) { 303 | D_PRINTF("%-10s %08x %08x-%08x %8i %08x %8i\n", 304 | file->name, file->hash, (uint32_t)file->offset, 305 | (uint32_t)(file->offset + file->size), 306 | (uint32_t)file->size, (uint32_t)file->xi_offset, 307 | (uint32_t)file->xi_size); 308 | #if 0 309 | if (file->xi_data != NULL) { 310 | int i; 311 | for (i = 0; i < file->xi_size; i++) 312 | D_PRINTF("%02x ", file->xi_data[i]); 313 | D_PRINTF("\n"); 314 | } 315 | #endif 316 | } 317 | 318 | /* use single-threaded mode */ 319 | fuse_opt_add_arg(&args, "-s"); 320 | 321 | /* do FUSE magic */ 322 | ret = fuse_main(args.argc, args.argv, &romdirfs_ops, NULL); 323 | 324 | D_PRINTF("fuse_main() returned %i\n", ret); 325 | D_PRINTF("clean up...\n"); 326 | 327 | STAILQ_FOREACH(file, &g_romdir, node) { 328 | STAILQ_REMOVE(&g_romdir, file, _romfile, node); 329 | free(file); 330 | } 331 | 332 | #ifdef USE_MMAP 333 | if (munmap(buf, sb.st_size) == -1) { 334 | perror("munmap"), 335 | exit(1); 336 | } 337 | #else 338 | free(buf); 339 | #endif 340 | free(g_config.filename); 341 | fuse_opt_free_args(&args); 342 | 343 | return ret; 344 | } 345 | --------------------------------------------------------------------------------