diff options
Diffstat (limited to 'sys-utils/blkreport.c')
| -rw-r--r-- | sys-utils/blkreport.c | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/sys-utils/blkreport.c b/sys-utils/blkreport.c deleted file mode 100644 index c8d0a63ac..000000000 --- a/sys-utils/blkreport.c +++ /dev/null @@ -1,225 +0,0 @@ -/* - * blkreport.c -- request a zone report on part (or all) of the block device. - * - * Copyright (C) 2015,2016 Seagate Technology PLC - * Written by Shaun Tancheff <shaun.tancheff@seagate.com> - * - * Copyright (C) 2017 Karel Zak <kzak@redhat.com> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - * This program uses BLKREPORT ioctl to query zone information about part of - * or a whole block device, if the device supports it. - * You can specify range (start and length) to be queried. - */ - -#include <string.h> -#include <unistd.h> -#include <stdlib.h> -#include <stdio.h> -#include <stdint.h> -#include <fcntl.h> -#include <limits.h> -#include <getopt.h> -#include <time.h> - -#include <sys/ioctl.h> -#include <sys/stat.h> -#include <sys/time.h> -#include <linux/fs.h> -#include <linux/blkzoned.h> - -#include "nls.h" -#include "strutils.h" -#include "xalloc.h" -#include "c.h" -#include "closestream.h" -#include "blkdev.h" - -static const char *type_text[] = { - "RESERVED", - "CONVENTIONAL", - "SEQ_WRITE_REQUIRED", - "SEQ_WRITE_PREFERRED", -}; - -static const char *condition_str[] = { - "cv", /* conventional zone */ - "e0", /* empty */ - "Oi", /* open implicit */ - "Oe", /* open explicit */ - "Cl", /* closed */ - "x5", "x6", "x7", "x8", "x9", "xA", "xB", /* xN: reserved */ - "ro", /* read only */ - "fu", /* full */ - "OL" /* offline */ -}; - -static void print_zones(const struct blk_zone *info, const uint32_t count) -{ - uint32_t iter; - - printf(_("Zones returned: %u\n"), count); - - for (iter = 0; iter < count; iter++) { - const struct blk_zone *entry = &info[iter]; - unsigned int type = entry->type; - uint64_t start = entry->start; - uint64_t wp = entry->wp; - uint8_t cond = entry->cond; - uint64_t len = entry->len; - - if (!len) - break; - - printf(_(" start: %9lx, len %6lx, wptr %6lx" - " reset:%u non-seq:%u, zcond:%2u(%s) [type: %u(%s)]\n"), - start, len, wp - start, - entry->reset, entry->non_seq, - cond, condition_str[cond & ARRAY_SIZE(condition_str)], - type, type_text[type]); - } -} - -static int do_report(const int fd, const uint64_t lba, uint32_t len, const int verbose) -{ - int rc; - struct blk_zone_report *zi; - - zi = xmalloc(sizeof(struct blk_zone_report) + (len * sizeof(struct blk_zone))); - zi->nr_zones = len; - zi->sector = lba; /* maybe shift 4Kn -> 512e */ - rc = ioctl(fd, BLKREPORTZONE, zi); - if (rc != -1) { - if (verbose) - printf(_("Found %d zones\n"), zi->nr_zones); - print_zones(zi->zones, zi->nr_zones); - } - free(zi); - - return rc; -} - -static void __attribute__((__noreturn__)) usage(FILE *out) -{ - fputs(USAGE_HEADER, out); - fprintf(out, _(" %s [options] <device>\n"), program_invocation_short_name); - - fputs(USAGE_SEPARATOR, out); - fputs(_("Report zone information about the given device.\n"), out); - - fputs(USAGE_OPTIONS, out); - fputs(_(" -z, --zone <offset> start sector of first zone (in 512-byte sectors)\n"), out); - fputs(_(" -c, --count <number> maximum number of zones in the report\n"), out); - fputs(_(" -v, --verbose display the number of reported zones"), out); - fputs(USAGE_SEPARATOR, out); - fputs(USAGE_HELP, out); - fputs(USAGE_VERSION, out); - - fprintf(out, USAGE_MAN_TAIL("blkreport(8)")); - exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS); -} - -#define DEF_REPORT_LEN (1 << 12) /* 4k zones (256k kzalloc) */ -#define MAX_REPORT_LEN (1 << 16) /* 64k zones */ - -int main(int argc, char **argv) -{ - char *path; - int c; - int fd; - int secsize; - uint64_t blksectors = 0; - struct stat sb; - int verbose = 0; - uint64_t offset = 0ul; - uint32_t length = DEF_REPORT_LEN; - static const struct option longopts[] = { - { "help", no_argument, NULL, 'h' }, - { "version", no_argument, NULL, 'V' }, - { "zone", required_argument, NULL, 'z' }, /* starting LBA */ - { "count", required_argument, NULL, 'c' }, /* max #of zones (entries) for result */ - { "verbose", no_argument, NULL, 'v' }, - { NULL, 0, NULL, 0 } - }; - - setlocale(LC_ALL, ""); - bindtextdomain(PACKAGE, LOCALEDIR); - textdomain(PACKAGE); - atexit(close_stdout); - - while ((c = getopt_long(argc, argv, "hc:z:vV", longopts, NULL)) != -1) { - switch (c) { - case 'h': - usage(stdout); - break; - case 'c': - length = strtosize_or_err(optarg, - _("failed to parse number of zones")); - break; - case 'z': - offset = strtosize_or_err(optarg, - _("failed to parse zone offset")); - break; - case 'v': - verbose = 1; - break; - case 'V': - printf(UTIL_LINUX_VERSION); - return EXIT_SUCCESS; - default: - usage(stderr); - break; - } - } - - if (optind == argc) - errx(EXIT_FAILURE, _("no device specified")); - - path = argv[optind++]; - - if (optind != argc) { - warnx(_("unexpected number of arguments")); - usage(stderr); - } - - fd = open(path, O_RDONLY); - if (fd < 0) - err(EXIT_FAILURE, _("cannot open %s"), path); - - if (fstat(fd, &sb) == -1) - err(EXIT_FAILURE, _("stat of %s failed"), path); - if (!S_ISBLK(sb.st_mode)) - errx(EXIT_FAILURE, _("%s: not a block device"), path); - - if (blkdev_get_sectors(fd, (unsigned long long *) &blksectors)) - err(EXIT_FAILURE, _("%s: blkdev_get_sectors ioctl failed"), path); - if (blkdev_get_sector_size(fd, &secsize)) - err(EXIT_FAILURE, _("%s: BLKSSZGET ioctl failed"), path); - - if (offset > blksectors) - errx(EXIT_FAILURE, _("%s: offset is greater than device size"), path); - if (length < 1) - length = 1; - if (length > MAX_REPORT_LEN) { - length = MAX_REPORT_LEN; - warnx(_("limiting report to %u entries"), length); - } - - if (do_report(fd, offset, length, verbose)) - err(EXIT_FAILURE, _("%s: BLKREPORTZONE ioctl failed"), path); - - close(fd); - return EXIT_SUCCESS; -} |