/* $NetBSD: newfs_udf.c,v 1.19 2016/03/09 19:48:24 christos Exp $ */ /* * Copyright (c) 2006, 2008, 2013 Reinoud Zandijk * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ /* * TODO * - implement metadata formatting for BD-R * - implement support for a read-only companion partition? */ #define _EXPOSE_MMC #if 0 # define DEBUG #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "mountprog.h" #include "udf_create.h" #include "udf_write.h" #include "newfs_udf.h" /* prototypes */ int newfs_udf(int argc, char **argv); static void usage(void) __attribute__((__noreturn__)); /* queue for temporary storage of sectors to be written out */ struct wrsect { uint64_t sectornr; uint8_t *sector_data; TAILQ_ENTRY(wrsect) next; }; /* write queue and track blocking skew */ TAILQ_HEAD(wrsect_list, wrsect) write_queue; /* global variables describing disc and format requests */ int fd; /* device: file descriptor */ char *dev; /* device: name */ struct mmc_discinfo mmc_discinfo; /* device: disc info */ char *format_str; /* format: string representation */ int format_flags; /* format: attribute flags */ int media_accesstype; /* derived from current mmc cap */ int check_surface; /* for rewritables */ int imagefile_secsize; /* for files */ int emul_packetsize; /* for discs and files */ int wrtrack_skew; int meta_perc = UDF_META_PERC; float meta_fract = (float) UDF_META_PERC / 100.0; /* --------------------------------------------------------------------- */ /* * write queue implementation */ int udf_write_sector(void *sector, uint64_t location) { struct wrsect *pos, *seekpos; /* search location */ TAILQ_FOREACH_REVERSE(seekpos, &write_queue, wrsect_list, next) { if (seekpos->sectornr <= location) break; } if ((seekpos == NULL) || (seekpos->sectornr != location)) { pos = calloc(1, sizeof(struct wrsect)); if (pos == NULL) return errno; /* allocate space for copy of sector data */ pos->sector_data = calloc(1, context.sector_size); if (pos->sector_data == NULL) { free(pos); return errno; } pos->sectornr = location; if (seekpos) { TAILQ_INSERT_AFTER(&write_queue, seekpos, pos, next); } else { TAILQ_INSERT_HEAD(&write_queue, pos, next); } } else { pos = seekpos; } memcpy(pos->sector_data, sector, context.sector_size); return 0; } /* * Now all write requests are queued in the TAILQ, write them out to the * disc/file image. Special care needs to be taken for devices that are only * strict overwritable i.e. only in packet size chunks * * XXX support for growing vnd? */ int writeout_write_queue(void) { struct wrsect *pos; uint64_t offset; uint64_t line_start, new_line_start; uint32_t line_len, line_offset, relpos; uint32_t blockingnr; uint8_t *linebuf, *adr; blockingnr = layout.blockingnr; line_len = blockingnr * context.sector_size; line_offset = wrtrack_skew * context.sector_size; linebuf = malloc(line_len); if (linebuf == NULL) return ENOMEM; pos = TAILQ_FIRST(&write_queue); bzero(linebuf, line_len); /* * Always writing out in whole lines now; this is slightly wastefull * on logical overwrite volumes but it reduces complexity and the loss * is near zero compared to disc size. */ line_start = (pos->sectornr - wrtrack_skew) / blockingnr; TAILQ_FOREACH(pos, &write_queue, next) { new_line_start = (pos->sectornr - wrtrack_skew) / blockingnr; if (new_line_start != line_start) { /* write out */ offset = (uint64_t) line_start * line_len + line_offset; #ifdef DEBUG printf("WRITEOUT %08"PRIu64" + %02d -- " "[%08"PRIu64"..%08"PRIu64"]\n", offset / context.sector_size, blockingnr, offset / context.sector_size, offset / context.sector_size + blockingnr-1); #endif if (pwrite(fd, linebuf, line_len, offset) < 0) { perror("Writing failed"); return errno; } line_start = new_line_start; bzero(linebuf, line_len); } relpos = (pos->sectornr - wrtrack_skew) % blockingnr; adr = linebuf + relpos * context.sector_size; memcpy(adr, pos->sector_data, context.sector_size); } /* writeout last chunk */ offset = (uint64_t) line_start * line_len + line_offset; #ifdef DEBUG printf("WRITEOUT %08"PRIu64" + %02d -- [%08"PRIu64"..%08"PRIu64"]\n", offset / context.sector_size, blockingnr, offset / context.sector_size, offset / context.sector_size + blockingnr-1); #endif if (pwrite(fd, linebuf, line_len, offset) < 0) { perror("Writing failed"); return errno; } /* success */ return 0; } /* --------------------------------------------------------------------- */ /* * mmc_discinfo and mmc_trackinfo readers modified from origional in udf main * code in sys/fs/udf/ */ #ifdef DEBUG static void udf_dump_discinfo(struct mmc_discinfo *di) { char bits[128]; printf("Device/media info :\n"); printf("\tMMC profile 0x%02x\n", di->mmc_profile); printf("\tderived class %d\n", di->mmc_class); printf("\tsector size %d\n", di->sector_size); printf("\tdisc state %d\n", di->disc_state); printf("\tlast ses state %d\n", di->last_session_state); printf("\tbg format state %d\n", di->bg_format_state); printf("\tfrst track %d\n", di->first_track); printf("\tfst on last ses %d\n", di->first_track_last_session); printf("\tlst on last ses %d\n", di->last_track_last_session); printf("\tlink block penalty %d\n", di->link_block_penalty); snprintb(bits, sizeof(bits), MMC_DFLAGS_FLAGBITS, (uint64_t) di->disc_flags); printf("\tdisc flags %s\n", bits); printf("\tdisc id %x\n", di->disc_id); printf("\tdisc barcode %"PRIx64"\n", di->disc_barcode); printf("\tnum sessions %d\n", di->num_sessions); printf("\tnum tracks %d\n", di->num_tracks); snprintb(bits, sizeof(bits), MMC_CAP_FLAGBITS, di->mmc_cur); printf("\tcapabilities cur %s\n", bits); snprintb(bits, sizeof(bits), MMC_CAP_FLAGBITS, di->mmc_cap); printf("\tcapabilities cap %s\n", bits); printf("\n"); printf("\tlast_possible_lba %d\n", di->last_possible_lba); printf("\n"); } #else #define udf_dump_discinfo(a); #endif /* --------------------------------------------------------------------- */ static int udf_update_discinfo(struct mmc_discinfo *di) { struct stat st; struct disklabel disklab; struct partition *dp; off_t size, sectors, secsize; int partnr, error; memset(di, 0, sizeof(struct mmc_discinfo)); /* check if we're on a MMC capable device, i.e. CD/DVD */ error = ioctl(fd, MMCGETDISCINFO, di); if (error == 0) return 0; /* (re)fstat the file */ fstat(fd, &st); if (S_ISREG(st.st_mode)) { /* file support; we pick the minimum sector size allowed */ size = st.st_size; secsize = imagefile_secsize; sectors = size / secsize; } else { /* * disc partition support; note we can't use DIOCGPART in * userland so get disc label and use the stat info to get the * partition number. */ if (ioctl(fd, DIOCGDINFO, &disklab) == -1) { /* failed to get disclabel! */ perror("disklabel"); return errno; } /* get disk partition it refers to */ fstat(fd, &st); partnr = DISKPART(st.st_rdev); dp = &disklab.d_partitions[partnr]; /* TODO problem with last_possible_lba on resizable VND */ if (dp->p_size == 0) { perror("faulty disklabel partition returned, " "check label\n"); return EIO; } sectors = dp->p_size; secsize = disklab.d_secsize; } /* set up a disc info profile for partitions */ di->mmc_profile = 0x01; /* disc type */ di->mmc_class = MMC_CLASS_DISC; di->disc_state = MMC_STATE_CLOSED; di->last_session_state = MMC_STATE_CLOSED; di->bg_format_state = MMC_BGFSTATE_COMPLETED; di->link_block_penalty = 0; di->mmc_cur = MMC_CAP_RECORDABLE | MMC_CAP_REWRITABLE | MMC_CAP_ZEROLINKBLK | MMC_CAP_HW_DEFECTFREE; di->mmc_cap = di->mmc_cur; di->disc_flags = MMC_DFLAGS_UNRESTRICTED; di->last_possible_lba = sectors - 1; di->sector_size = secsize; di->num_sessions = 1; di->num_tracks = 1; di->first_track = 1; di->first_track_last_session = di->last_track_last_session = 1; return 0; } int udf_update_trackinfo(struct mmc_discinfo *di, struct mmc_trackinfo *ti) { int error, class; class = di->mmc_class; if (class != MMC_CLASS_DISC) { /* tracknr specified in struct ti */ error = ioctl(fd, MMCGETTRACKINFO, ti); return error; } /* discs partition support */ if (ti->tracknr != 1) return EIO; /* create fake ti (TODO check for resized vnds) */ ti->sessionnr = 1; ti->track_mode = 0; /* XXX */ ti->data_mode = 0; /* XXX */ ti->flags = MMC_TRACKINFO_LRA_VALID | MMC_TRACKINFO_NWA_VALID; ti->track_start = 0; ti->packet_size = emul_packetsize; /* TODO support for resizable vnd */ ti->track_size = di->last_possible_lba; ti->next_writable = di->last_possible_lba; ti->last_recorded = ti->next_writable; ti->free_blocks = 0; return 0; } static int udf_setup_writeparams(struct mmc_discinfo *di) { struct mmc_writeparams mmc_writeparams; int error; if (di->mmc_class == MMC_CLASS_DISC) return 0; /* * only CD burning normally needs setting up, but other disc types * might need other settings to be made. The MMC framework will set up * the nessisary recording parameters according to the disc * characteristics read in. Modifications can be made in the discinfo * structure passed to change the nature of the disc. */ memset(&mmc_writeparams, 0, sizeof(struct mmc_writeparams)); mmc_writeparams.mmc_class = di->mmc_class; mmc_writeparams.mmc_cur = di->mmc_cur; /* * UDF dictates first track to determine track mode for the whole * disc. [UDF 1.50/6.10.1.1, UDF 1.50/6.10.2.1] * To prevent problems with a `reserved' track in front we start with * the 2nd track and if that is not valid, go for the 1st. */ mmc_writeparams.tracknr = 2; mmc_writeparams.data_mode = MMC_DATAMODE_DEFAULT; /* XA disc */ mmc_writeparams.track_mode = MMC_TRACKMODE_DEFAULT; /* data */ error = ioctl(fd, MMCSETUPWRITEPARAMS, &mmc_writeparams); if (error) { mmc_writeparams.tracknr = 1; error = ioctl(fd, MMCSETUPWRITEPARAMS, &mmc_writeparams); } return error; } static void udf_synchronise_caches(void) { struct mmc_op mmc_op; bzero(&mmc_op, sizeof(struct mmc_op)); mmc_op.operation = MMC_OP_SYNCHRONISECACHE; /* this device might not know this ioct, so just be ignorant */ (void) ioctl(fd, MMCOP, &mmc_op); } /* --------------------------------------------------------------------- */ static int udf_prepare_disc(void) { struct mmc_trackinfo ti; struct mmc_op op; int tracknr, error; /* If the last track is damaged, repair it */ ti.tracknr = mmc_discinfo.last_track_last_session; error = udf_update_trackinfo(&mmc_discinfo, &ti); if (error) return error; if (ti.flags & MMC_TRACKINFO_DAMAGED) { /* * Need to repair last track before anything can be done. * this is an optional command, so ignore its error but report * warning. */ memset(&op, 0, sizeof(op)); op.operation = MMC_OP_REPAIRTRACK; op.mmc_profile = mmc_discinfo.mmc_profile; op.tracknr = ti.tracknr; error = ioctl(fd, MMCOP, &op); if (error) (void)printf("Drive can't explicitly repair last " "damaged track, but it might autorepair\n"); } /* last track (if any) might not be damaged now, operations are ok now */ /* setup write parameters from discinfo */ error = udf_setup_writeparams(&mmc_discinfo); if (error) return error; /* if the drive is not sequential, we're done */ if ((mmc_discinfo.mmc_cur & MMC_CAP_SEQUENTIAL) == 0) return 0; #ifdef notyet /* if last track is not the reserved but an empty track, unreserve it */ if (ti.flags & MMC_TRACKINFO_BLANK) { if (ti.flags & MMC_TRACKINFO_RESERVED == 0) { memset(&op, 0, sizeof(op)); op.operation = MMC_OP_UNRESERVETRACK; op.mmc_profile = mmc_discinfo.mmc_profile; op.tracknr = ti.tracknr; error = ioctl(fd, MMCOP, &op); if (error) return error; /* update discinfo since it changed by the operation */ error = udf_update_discinfo(&mmc_discinfo); if (error) return error; } } #endif /* close the last session if its still open */ if (mmc_discinfo.last_session_state == MMC_STATE_INCOMPLETE) { printf("Closing last open session if present\n"); /* close all associated tracks */ tracknr = mmc_discinfo.first_track_last_session; while (tracknr <= mmc_discinfo.last_track_last_session) { ti.tracknr = tracknr; error = udf_update_trackinfo(&mmc_discinfo, &ti); if (error) return error; printf("\tClosing open track %d\n", tracknr); memset(&op, 0, sizeof(op)); op.operation = MMC_OP_CLOSETRACK; op.mmc_profile = mmc_discinfo.mmc_profile; op.tracknr = tracknr; error = ioctl(fd, MMCOP, &op); if (error) return error; tracknr ++; } printf("Closing session\n"); memset(&op, 0, sizeof(op)); op.operation = MMC_OP_CLOSESESSION; op.mmc_profile = mmc_discinfo.mmc_profile; op.sessionnr = mmc_discinfo.num_sessions; error = ioctl(fd, MMCOP, &op); if (error) return error; /* update discinfo since it changed by the operations */ error = udf_update_discinfo(&mmc_discinfo); if (error) return error; } if (format_flags & FORMAT_TRACK512) { /* get last track again */ ti.tracknr = mmc_discinfo.last_track_last_session; error = udf_update_trackinfo(&mmc_discinfo, &ti); if (error) return error; /* Split up the space at 512 for iso cd9660 hooking */ memset(&op, 0, sizeof(op)); op.operation = MMC_OP_RESERVETRACK_NWA; /* UPTO nwa */ op.mmc_profile = mmc_discinfo.mmc_profile; op.extent = 512; /* size */ error = ioctl(fd, MMCOP, &op); if (error) return error; } return 0; } /* --------------------------------------------------------------------- */ int udf_surface_check(void) { uint32_t loc, block_bytes; uint32_t sector_size, blockingnr, bpos; uint8_t *buffer; int error, num_errors; sector_size = context.sector_size; blockingnr = layout.blockingnr; block_bytes = layout.blockingnr * sector_size; if ((buffer = malloc(block_bytes)) == NULL) return ENOMEM; /* set all one to not kill Flash memory? */ for (bpos = 0; bpos < block_bytes; bpos++) buffer[bpos] = 0x00; printf("\nChecking disc surface : phase 1 - writing\n"); num_errors = 0; loc = layout.first_lba; while (loc <= layout.last_lba) { /* write blockingnr sectors */ error = pwrite(fd, buffer, block_bytes, loc*sector_size); printf(" %08d + %d (%02d %%)\r", loc, blockingnr, (int)((100.0 * loc)/layout.last_lba)); fflush(stdout); if (error == -1) { /* block is bad */ printf("BAD block at %08d + %d \n", loc, layout.blockingnr); if ((error = udf_register_bad_block(loc))) { free(buffer); return error; } num_errors ++; } loc += layout.blockingnr; } printf("\nChecking disc surface : phase 2 - reading\n"); num_errors = 0; loc = layout.first_lba; while (loc <= layout.last_lba) { /* read blockingnr sectors */ error = pread(fd, buffer, block_bytes, loc*sector_size); printf(" %08d + %d (%02d %%)\r", loc, blockingnr, (int)((100.0 * loc)/layout.last_lba)); fflush(stdout); if (error == -1) { /* block is bad */ printf("BAD block at %08d + %d \n", loc, layout.blockingnr); if ((error = udf_register_bad_block(loc))) { free(buffer); return error; } num_errors ++; } loc += layout.blockingnr; } printf("Scan complete : %d bad blocks found\n", num_errors); free(buffer); return 0; } /* --------------------------------------------------------------------- */ static int udf_do_newfs(void) { int error; error = udf_do_newfs_prefix(); if (error) return error; error = udf_do_rootdir(); if (error) return error; error = udf_do_newfs_postfix(); return error; } /* --------------------------------------------------------------------- */ static void usage(void) { (void)fprintf(stderr, "Usage: %s [-cFM] [-L loglabel] " "[-P discid] [-S sectorsize] [-s size] [-p perc] " "[-t gmtoff] [-v min_udf] [-V max_udf] special\n", getprogname()); exit(EXIT_FAILURE); } int main(int argc, char **argv) { struct tm *tm; struct stat st; time_t now; off_t setsize; char scrap[255], *colon; int ch, req_enable, req_disable, force; int error; setprogname(argv[0]); /* initialise */ format_str = strdup(""); req_enable = req_disable = 0; format_flags = FORMAT_INVALID; force = 0; check_surface = 0; setsize = 0; imagefile_secsize = 512; /* minimum allowed sector size */ emul_packetsize = 32; /* reasonable default */ srandom((unsigned long) time(NULL)); udf_init_create_context(); context.app_name = "*NetBSD newfs"; context.app_version_main = APP_VERSION_MAIN; context.app_version_sub = APP_VERSION_SUB; context.impl_name = IMPL_NAME; /* minimum and maximum UDF versions we advise */ context.min_udf = 0x201; context.max_udf = 0x201; /* use user's time zone as default */ (void)time(&now); tm = localtime(&now); context.gmtoff = tm->tm_gmtoff; /* process options */ while ((ch = getopt(argc, argv, "cFL:Mp:P:s:S:B:t:v:V:")) != -1) { switch (ch) { case 'c' : check_surface = 1; break; case 'F' : force = 1; break; case 'L' : if (context.logvol_name) free(context.logvol_name); context.logvol_name = strdup(optarg); break; case 'M' : req_disable |= FORMAT_META; break; case 'p' : meta_perc = a_num(optarg, "meta_perc"); /* limit to `sensible` values */ meta_perc = MIN(meta_perc, 99); meta_perc = MAX(meta_perc, 1); meta_fract = (float) meta_perc/100.0; break; case 'v' : context.min_udf = a_udf_version(optarg, "min_udf"); if (context.min_udf > context.max_udf) context.max_udf = context.min_udf; break; case 'V' : context.max_udf = a_udf_version(optarg, "max_udf"); if (context.min_udf > context.max_udf) context.min_udf = context.max_udf; break; case 'P' : /* check if there is a ':' in the name */ if ((colon = strstr(optarg, ":"))) { if (context.volset_name) free(context.volset_name); *colon = 0; context.volset_name = strdup(optarg); optarg = colon+1; } if (context.primary_name) free(context.primary_name); if ((strstr(optarg, ":"))) { perror("primary name can't have ':' in its name"); return EXIT_FAILURE; } context.primary_name = strdup(optarg); break; case 's' : /* support for files, set file size */ /* XXX support for formatting recordables on vnd/file? */ if (dehumanize_number(optarg, &setsize) < 0) { perror("can't parse size argument"); return EXIT_FAILURE; } setsize = MAX(0, setsize); break; case 'S' : imagefile_secsize = a_num(optarg, "secsize"); imagefile_secsize = MAX(512, imagefile_secsize); break; case 'B' : emul_packetsize = a_num(optarg, "blockingnr, packetsize"); emul_packetsize = MAX(emul_packetsize, 1); emul_packetsize = MIN(emul_packetsize, 32); break; case 't' : /* time zone overide */ context.gmtoff = a_num(optarg, "gmtoff"); break; default : usage(); /* NOTREACHED */ } } if (optind + 1 != argc) usage(); /* get device and directory specifier */ dev = argv[optind]; /* open device */ if ((fd = open(dev, O_RDWR, 0)) == -1) { /* check if we need to create a file */ fd = open(dev, O_RDONLY, 0); if (fd > 0) { perror("device is there but can't be opened for read/write"); return EXIT_FAILURE; } if (!force) { perror("can't open device"); return EXIT_FAILURE; } if (setsize == 0) { perror("need to create image file but no size specified"); return EXIT_FAILURE; } /* need to create a file */ fd = open(dev, O_RDWR | O_CREAT | O_TRUNC, 0777); if (fd == -1) { perror("can't create image file"); return EXIT_FAILURE; } } /* stat the device */ if (fstat(fd, &st) != 0) { perror("can't stat the device"); close(fd); return EXIT_FAILURE; } if (S_ISREG(st.st_mode)) { if (setsize == 0) setsize = st.st_size; /* sanitise arguments */ imagefile_secsize &= ~511; setsize &= ~(imagefile_secsize-1); if (ftruncate(fd, setsize)) { perror("can't resize file"); return EXIT_FAILURE; } } /* formatting can only be done on raw devices */ if (!S_ISREG(st.st_mode) && !S_ISCHR(st.st_mode)) { printf("%s is not a raw device\n", dev); close(fd); return EXIT_FAILURE; } /* just in case something went wrong, synchronise the drive's cache */ udf_synchronise_caches(); /* get 'disc' information */ error = udf_update_discinfo(&mmc_discinfo); if (error) { perror("can't retrieve discinfo"); close(fd); return EXIT_FAILURE; } /* derive disc identifiers when not specified and check given */ error = udf_proces_names(); if (error) { /* error message has been printed */ close(fd); return EXIT_FAILURE; } /* derive newfs disc format from disc profile */ error = udf_derive_format(req_enable, req_disable, force); if (error) { /* error message has been printed */ close(fd); return EXIT_FAILURE; } udf_dump_discinfo(&mmc_discinfo); printf("Formatting disc compatible with UDF version %x to %x\n\n", context.min_udf, context.max_udf); (void)snprintb(scrap, sizeof(scrap), FORMAT_FLAGBITS, (uint64_t) format_flags); printf("UDF properties %s\n", scrap); printf("Volume set `%s'\n", context.volset_name); printf("Primary volume `%s`\n", context.primary_name); printf("Logical volume `%s`\n", context.logvol_name); if (format_flags & FORMAT_META) printf("Metadata percentage %d %%\n", meta_perc); printf("\n"); /* prepare disc if nessisary (recordables mainly) */ error = udf_prepare_disc(); if (error) { perror("preparing disc failed"); close(fd); return EXIT_FAILURE; }; /* setup sector writeout queue's */ TAILQ_INIT(&write_queue); /* perform the newfs itself */ error = udf_do_newfs(); if (!error) { /* write out sectors */ error = writeout_write_queue(); } /* in any case, synchronise the drive's cache to prevent lockups */ udf_synchronise_caches(); close(fd); if (error) return EXIT_FAILURE; return EXIT_SUCCESS; } /* --------------------------------------------------------------------- */