bluraybackup-2.0/0000755000175000017500000000000015003762457013414 5ustar matteomatteobluraybackup-2.0/bluraybackup.10000644000175000017500000000530015003762457016160 0ustar matteomatteo.TH bluraybackup 1 bluraybackup\-VERSION .SH NAME bluraybackup \- Tool to backup Blu-ray Disc Movies (BDMV) .SH SYNOPSIS .B bluraybackup [-d \fIdevice\fR] [-k \fIkeyfile\fR] [\fIFILE\fR] [\fIDEST\fR] .B bluraybackup [-d \fIdevice\fR] [-k \fIkeyfile\fR] -m [\fIDEST\fR] .B bluraybackup [\fIOPTION\fR] .SH DESCRIPTION \fBbluraybackup\fP backups Blu-ray Disc Movies (BDMV), inspired by dvdbackup, developed in ANSI C (C89) following the suckless philosophy. It makes a decrypted copy of the whole Blu-ray Disc Movie or it extracts a decrypted version of a specific BDMV stream. This program may not work with all Blu-rays. It both depends on your KEYDB.cfg file and on the BD+ generation (version). To successfully decrypt a Blu-ray Disc Movie you both need libaacs installed and a KEYDB.cfg file, containing your disc keys. Moreover, if your disc is plagued by BD+ as well, you need to install libbdplus. BD+ is a form of copy obstruction, which consists in writing video streams to disc with small errors. These errors get fixed during playback by a virtual machine embedded in official players, only if the player keys are verified by the same virtual machine. libbdplus is an implementation of the BD+ virtual machine features. However it doesn't support all the BD+ generations. Since libbdplus 0.2.0, it's possible to bypass BD+ emulation, using cached tables to fix the broken streams. .SH OPTIONS .TP \fB-d\fR, \fB--device\fR \fIdevice\fR defines Blu-ray disc device (default /dev/sr0) .TP \fB-h\fR, \fB--help\fR print usage message .TP \fB-k\fR, \fB--keydb\fR \fIkeyfile\fR defines keys database file path (default $HOME/.config/aacs/KEYDB.cfg) .TP \fB-m\fR, \fB--main\fR copy main Blu-ray disc title (see USAGE) .TP \fB-v\fR, \fB--version\fR print version and license information .SH USAGE .B bluraybackup [-d \fIdevice\fR] [-k \fIkeyfile\fR] [\fIFILE\fR] [\fIDEST\fR] .P Without \fIFILE\fR, the whole disc will be copied to the current directory. \fIFILE\fR must be a file path relative to the disc root. Without \fIDEST\fR, the decrypted \fIFILE\fR will be sent to standard output. \fIDEST\fR path must include file name. .B bluraybackup [-d \fIdevice\fR] [-k \fIkeyfile\fR] -m [\fIDEST\fR] .P Without \fIDEST\fR, the main disc title will be sent to standard output. \fIDEST\fR path must include file name. .SH EXIT VALUES .TP \fB0\fP \- Successful copy .TP \fB1\fP \- Everything else .SH SEE ALSO .P \fBdvdbackup\fP(1) .B http://www.videolan.org/developers/libbluray.html .B http://www.videolan.org/developers/libaacs.html .B http://www.videolan.org/developers/libbdplus.html .B https://wiki.archlinux.org/title/Blu-ray .B http://suckless.org/philosophy/ .SH AUTHOR bluraybackup was written by Matteo Bini . bluraybackup-2.0/README0000644000175000017500000000325115003762457014275 0ustar matteomatteobluraybackup is a command line program to backup Blu-ray Disc Movies (BDMV), inspired by dvdbackup [1], developed in ANSI C (C89) following the suckless philosophy [2]. It makes a decrypted copy of the whole Blu-ray Disc Movie or it extracts a decrypted version of a specific BDMV stream. Since Blu-ray is an especially nasty format [3], this software may not work with all discs. It both depends on your KEYDB.cfg file and on the BD+ generation (version). bluraybackup relies on libbluray [4] to read disc data and on libaacs [5] to remove Advanced Access Content System (AACS) encryption. To build you need libbluray and its headers. To successfully decrypt a Blu-ray Disc Movie you both need libaacs installed and a KEYDB.cfg file, containing your disc keys. Moreover, if your disc is plagued by BD+ as well, you need to install libbdplus [6]. BD+ is a form of copy obstruction, which consists in writing video streams to disc with small errors. These errors get fixed during playback by a virtual machine embedded in official players, only if the player keys are verified by the same virtual machine. libbdplus is an implementation of the BD+ virtual machine features. However it doesn't support all the BD+ generations. Since libbdplus 0.2.0, it's possible to bypass BD+ emulation, using cached tables to fix the broken streams. See also Blu-ray on ArchWiki [7]. [1] https://dvdbackup.sourceforge.net/ [2] http://suckless.org/philosophy/ [3] https://www.defectivebydesign.org/topic/bluray [4] http://www.videolan.org/developers/libbluray.html [5] http://www.videolan.org/developers/libaacs.html [6] http://www.videolan.org/developers/libbdplus.html [7] https://wiki.archlinux.org/title/Blu-ray bluraybackup-2.0/LICENSE0000644000175000017500000010451515003762457014427 0ustar matteomatteo GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. 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The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . bluraybackup-2.0/Makefile0000644000175000017500000000263615003762457015063 0ustar matteomatteoBIN = bluraybackup VERSION = 2.0 PREFIX = /usr/local CPPFLAGS_BLURAYBACKUP = -DBIN=\"${BIN}\" -DVERSION=\"${VERSION}\" ${CPPFLAGS} OPTIMIZATION = -Os CFLAGS_BLURAYBACKUP = ${OPTIMIZATION} -ansi -pedantic ${CPPFLAGS_BLURAYBACKUP} ${CFLAGS} LDFLAGS_BLURAYBACKUP = -lbluray ${LDFLAGS} SRC = ${BIN}.c OBJ = ${SRC:.c=.o} all: ${BIN} .c.o: ${CC} ${CFLAGS_BLURAYBACKUP} -c $< -o $@ ${BIN}: ${OBJ} ${CC} -o ${BIN} ${OBJ} ${LDFLAGS_BLURAYBACKUP} clean: rm -f ${BIN} ${BIN}-[1-9].[0-9].tar.gz *.o debug: @make OPTIMIZATION=-ggdb dist: clean mkdir ${BIN}-${VERSION} cp -R ${BIN}.1 ${SRC} LICENSE Makefile README ${BIN}-${VERSION} tar -cf ${BIN}-${VERSION}.tar ${BIN}-${VERSION} gzip ${BIN}-${VERSION}.tar rm -fr ${BIN}-${VERSION} install: ${BIN} # bin mkdir -p ${DESTDIR}${PREFIX}/bin cp -f ${BIN} ${DESTDIR}${PREFIX}/bin chmod 755 ${DESTDIR}${PREFIX}/bin/${BIN} # doc mkdir -p ${DESTDIR}${PREFIX}/share/doc/${BIN} cp -f README ${DESTDIR}${PREFIX}/share/doc/${BIN} chmod 644 ${DESTDIR}${PREFIX}/share/doc/${BIN}/README # man page mkdir -p ${DESTDIR}${PREFIX}/share/man/man1 sed 's/VERSION/${VERSION}/' < ${BIN}.1 > ${DESTDIR}${PREFIX}/share/man/man1/${BIN}.1 chmod 644 ${DESTDIR}${PREFIX}/share/man/man1/${BIN}.1 uninstall: rm -f ${DESTDIR}${PREFIX}/bin/${BIN} rm -fr ${DESTDIR}${PREFIX}/share/doc/${BIN} rm -f ${DESTDIR}${PREFIX}/share/man/man1/${BIN}.1 .PHONY: all clean dist install uninstall bluraybackup-2.0/bluraybackup.c0000644000175000017500000003023015003762457016242 0ustar matteomatteo#include #include #include #include #include #include #include #include /* macros */ #define ENCRYPTED_BYTES_TO_READ 6144 /* function declarations */ static int block_device_exists(const char *path); static int copy_dir(BLURAY *bluray, const char *path); static int copy_file(BLURAY *bluray, const char *src, const char *dst); static int copy_main_title(BLURAY *bluray, const char *dst); static int file_exists(const char *path, struct stat *info); static int init(int argc, char **argv, BLURAY **bluray, int *only_main_title); static BLURAY *open_bluray(const char *device, const char *keyfile, const int copy_titles); static void print_default_usage(void); static void print_help(void); static void print_only_main_title_usage(void); static void print_version(void); static int regular_file_exists(const char *path); static char *search_keyfile(void); static void stop(int sig); /* variables */ int running = 1; /* function implementations */ int block_device_exists(const char *path) { int exist; struct stat info; exist = 0; if (file_exists(path, &info)) { if (S_ISBLK(info.st_mode)) exist = 1; else fprintf(stderr, BIN ": %s isn't a block device.\n", path); } return exist; } int copy_dir(BLURAY *bluray, const char *path) { int all_good, read; struct bd_dir_s *dir; BD_DIRENT *dirent; char *new_path; all_good = 1; read = 0; dir = bd_open_dir(bluray, path); if (dir == NULL) { fprintf(stderr, BIN ": Can't open Blu-ray dir %s.\n", path); return 0; } if (strcmp(path, "") != 0 && mkdir(path, 0755) == -1 && errno != EEXIST) { fprintf(stderr, BIN ": Can't create destination dir %s.\n", path); return 0; } dirent = malloc(sizeof(BD_DIRENT)); if (dirent == NULL) { fputs(BIN ": Can't allocate memory for BD_DIRENT.\n", stderr); dir->close(dir); return 0; } do { read = dir->read(dir, dirent); if (read == -1) { break; /* [libbluray-devel] UDF dir read does not return 1 on EOF https://mailman.videolan.org/pipermail/libbluray-devel/2023-September/003297.html https://code.videolan.org/videolan/libbluray/-/blob/master/src/libbluray/disc/udf_fs.c#L110 https://code.videolan.org/videolan/libudfread/-/blob/master/src/udfread.c#L1375 fprintf(stderr, BIN ": Can't read Blu-ray dir %s.\n", path); return 0; */ } new_path = malloc(sizeof(char) * (strlen(path) + strlen(dirent->d_name) + 2)); if (new_path == NULL) { fputs(BIN ": Can't allocate memory for new_path.\n", stderr); all_good = 0; break; } strcpy(new_path, path); if (strcmp(path, "") != 0) strcat(new_path, "/"); strcat(new_path, dirent->d_name); if (strchr(dirent->d_name, '.') == NULL) { if (!copy_dir(bluray, new_path)) all_good = 0; } else { if (!copy_file(bluray, new_path, new_path)) all_good = 0; } free(new_path); } while (running && read == 0); if (!running) all_good = 0; free(dirent); dir->close(dir); return all_good; } int copy_file(BLURAY *bluray, const char *src, const char *dst) { uint8_t bytes[ENCRYPTED_BYTES_TO_READ]; FILE *dst_file; int64_t read; struct bd_file_s *src_file; int success; size_t written; success = 1; src_file = bd_open_file_dec(bluray, src); if (src_file == NULL) { fprintf(stderr, BIN ": Can't open Blu-ray file %s.\n", src); return 0; } dst_file = dst == NULL ? stdout : fopen(dst, "w"); if (dst_file == NULL) { fprintf(stderr, BIN ": Can't open destination file %s.\n", dst); src_file->close(src_file); return 0; } while (running && (read = src_file->read(src_file, bytes, ENCRYPTED_BYTES_TO_READ)) && read > 0) { written = fwrite(bytes, 1, read, dst_file); if (written != read) { success = 0; if (dst_file == stdout) fputs(BIN ": Can't write to standard output.\n", stderr); else fprintf(stderr, BIN ": Destination write error on %s.\n", dst); break; } } if (read < 0) { success = 0; fprintf(stderr, BIN ": Blu-ray read error on %s.\n", src); } if (!running) success = 0; if (dst_file != stdout) fclose(dst_file); src_file->close(src_file); return success; } int copy_main_title(BLURAY *bluray, const char *dst) { unsigned char bytes[ENCRYPTED_BYTES_TO_READ]; FILE *dst_file; BLURAY_TITLE_INFO *info; int read, success, title; size_t written; success = 1; title = bd_get_main_title(bluray); if (title == -1) { fputs(BIN ": Can't get main Blu-ray title.\n", stderr); return 0; } if (bd_select_title(bluray, title) == 0) { fprintf(stderr, BIN ": Can't select Blu-ray title %i.\n", title); return 0; } info = bd_get_title_info(bluray, title, 1); if (info == NULL) { fprintf(stderr, BIN ": Can't get Blu-ray title %i info.\n", title); return 0; } dst_file = dst == NULL ? stdout : fopen(dst, "w"); if (dst_file == NULL) { fprintf(stderr, BIN ": Can't open destination file %s.\n", dst); bd_free_title_info(info); return 0; } while (running && (read = bd_read(bluray, bytes, ENCRYPTED_BYTES_TO_READ)) && read > 0) { written = fwrite(bytes, 1, read, dst_file); if (written != read) { success = 0; if (dst_file == stdout) fputs(BIN ": Can't write to standard output.\n", stderr); else fprintf(stderr, BIN ": Destination write error on %s.\n", dst); break; } } if (read < 0) { success = 0; fprintf(stderr, BIN ": Blu-ray read error on title %i.\n", title); } if (!running) success = 0; if (dst_file != stdout) fclose(dst_file); bd_free_title_info(info); return success; } int file_exists(const char *path, struct stat *info) { int exist; exist = 0; if (stat(path, info) == 0) exist = 1; else fprintf(stderr, BIN ": Can't open %s.\n", path); return exist; } int init(int argc, char **argv, BLURAY **bluray, int *only_main_title) { char *device, *keyfile; int free_keyfile, i, param_num; device = "/dev/sr0"; free_keyfile = 0; keyfile = NULL; *only_main_title = 0; for (i = 1; i < argc; i++) { if (!strcmp(argv[i], "--")) { i++; break; } else if (!strcmp(argv[i], "-d") || !strcmp(argv[i], "--device")) { if (i == argc - 1) { fprintf(stderr, BIN ": After \"%s\" write the Blu-ray device file path.\n", argv[i]); goto exit; } device = argv[++i]; } else if (!strncmp(argv[i], "-d", 2)) { device = argv[i] + 2; } else if (!strncmp(argv[i], "--device=", 9)) { device = argv[i] + 9; } else if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help")) { print_help(); goto exit; } else if (!strcmp(argv[i], "-k") || !strcmp(argv[i], "--keydb")) { if (i == argc - 1) { fprintf(stderr, BIN ": After \"%s\" write the keys database file path.\n", argv[i]); goto exit; } keyfile = argv[++i]; } else if (!strncmp(argv[i], "-k", 2)) { keyfile = argv[i] + 2; } else if (!strncmp(argv[i], "--keydb=", 8)) { keyfile = argv[i] + 8; } else if (!strcmp(argv[i], "-m") || !strcmp(argv[i], "--main")) { *only_main_title = 1; } else if (!strcmp(argv[i], "-v") || !strcmp(argv[i], "--version")) { print_version(); goto exit; } else if (!strncmp(argv[i], "-", 1)) { fprintf(stderr, BIN ": Unknown \"%s\" option.\n", argv[i]); goto exit; } else { break; } } param_num = argc - i; if (*only_main_title && (param_num < 0 || param_num > 1)) { print_only_main_title_usage(); goto exit; } else if (param_num < 0 || param_num > 2) { print_default_usage(); goto exit; } if (!block_device_exists(device)) goto exit; if (keyfile == NULL) { keyfile = search_keyfile(); if (keyfile == NULL) { fputs(BIN ": Can't find keys database file.\n", stderr); goto exit; } else { free_keyfile = 1; } } else if (!regular_file_exists(keyfile)) { goto exit; } *bluray = open_bluray(device, keyfile, *only_main_title); exit: if (free_keyfile) free(keyfile); if (*bluray == NULL) exit(1); return i; } int main(int argc, char *argv[]) { BLURAY *bluray; int first_param, only_main_title, param_num, success; first_param = init(argc, argv, &bluray, &only_main_title); param_num = argc - first_param; success = 0; signal(SIGINT, stop); signal(SIGTERM, stop); switch (param_num) { case 0: if (only_main_title) success = copy_main_title(bluray, NULL); else success = copy_dir(bluray, ""); break; case 1: if (only_main_title) success = copy_main_title(bluray, argv[first_param]); else success = copy_file(bluray, argv[first_param], NULL); break; case 2: success = copy_file(bluray, argv[first_param], argv[first_param + 1]); break; } bd_close(bluray); return !success; } BLURAY * open_bluray(const char *device, const char *keyfile, const int copy_titles) { BLURAY *bluray; const BLURAY_DISC_INFO *info; bluray = bd_open(device, keyfile); if (bluray == NULL) { fprintf(stderr, BIN ": Can't open device %s.\n", device); return NULL; } info = bd_get_disc_info(bluray); if (info == NULL) { fputs(BIN ": Can't get disc info.\n", stderr); bd_close(bluray); return NULL; } if (info->aacs_detected == 1 && info->libaacs_detected != 1) { fputs(BIN ": To decode an AACS encrypted disc install libaacs.\n", stderr); bd_close(bluray); return NULL; } if (info->aacs_detected == 1 && info->aacs_handled != 1) { fputs(BIN ": Unsupported AACS encoding.\n", stderr); bd_close(bluray); return NULL; } if (info->bdplus_detected == 1 && info->libbdplus_detected != 1) { fputs(BIN ": To decode a BD+ encrypted disc install libbdplus.\n", stderr); bd_close(bluray); return NULL; } if (info->bdplus_detected == 1 && info->bdplus_handled != 1) { fputs(BIN ": Unsupported BD+ encoding.\n", stderr); bd_close(bluray); return NULL; } if ((copy_titles == 1 || info->bdplus_detected == 1) && bd_get_titles(bluray, TITLES_RELEVANT, 0) == 0) { fputs(BIN ": Can't get Blu-ray titles.\n", stderr); bd_close(bluray); return NULL; } return bluray; } void print_default_usage(void) { fputs("Usage: " BIN " [-d device] [-k keyfile] [FILE] [DEST]\n", stdout); } void print_help(void) { print_default_usage(); fputs( \ "\n" \ "Without FILE, the whole disc will be copied to the current directory.\n" \ "FILE must be a file path relative to the disc root.\n" \ "\n" \ "Without DEST, FILE will be sent to standard output.\n" \ "DEST path must include file name.\n" \ "\n" \ , stdout); print_only_main_title_usage(); fputs( \ "\n" \ "Without DEST, the main disc title will be sent to standard output.\n" \ "DEST path must include file name.\n" \ "\n" \ "\"" BIN " -h\" or \"--help\" prints this help text.\n" \ "\"" BIN " -v\" or \"--version\" prints version and license information.\n" \ "\n" \ BIN " exits with 0 only after a successful copy,\n" \ "otherwise it exits with 1.\n" \ , stdout); } void print_only_main_title_usage(void) { fputs("Usage: " BIN " [-d device] [-k keyfile] -m [DEST]\n", stdout); } void print_version(void) { fputs( \ BIN " " VERSION "\n" \ "Copyright (C) 2023 Matteo Bini\n" \ "License: GPLv3+ .\n" \ "This is free software: you are free to change and redistribute it.\n" \ "There is NO WARRANTY, to the extent permitted by law.\n" \ "\n" \ "Written by Matteo Bini.\n" \ , stdout); } int regular_file_exists(const char *path) { int exist; struct stat info; exist = 0; if (file_exists(path, &info)) { if (S_ISREG(info.st_mode)) exist = 1; else fprintf(stderr, BIN ": %s isn't a regular file.\n", path); } return exist; } char * search_keyfile(void) { char *home, *name; size_t i, len; static char *path; char relpath[24]; len = 0; home = getenv("HOME"); strcpy(relpath, "/.config/aacs/KEYDB.cfg"); if (home == NULL) strcpy(relpath, "KEYDB.cfg"); else len += strlen(home); len += strlen(relpath); path = malloc(len + 1); for (i = 0; i != len; i++) path[i] = '\0'; if (home != NULL) strcpy(path, home); strcat(path, relpath); if (regular_file_exists(path)) return path; name = strrchr(path, '/'); if (name == NULL) name = path; else name++; strcpy(name, "keydb.cfg"); if (regular_file_exists(path)) return path; strcpy(name, "KeyDB.cfg"); if (regular_file_exists(path)) return path; strcpy(name, "KEYDB.CFG"); if (regular_file_exists(path)) return path; free(path); path = NULL; return path; } void stop(int sig) { running = 0; }