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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-14 19:10:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-14 19:10:49 +0000
commitcfe5e3905201349e9cf3f95d52ff4bd100bde37d (patch)
treed0baf160cbee3195249d095f85e52d20c21acf02 /disk-utils/fdisk-list.c
parentInitial commit. (diff)
downloadutil-linux-cfe5e3905201349e9cf3f95d52ff4bd100bde37d.tar.xz
util-linux-cfe5e3905201349e9cf3f95d52ff4bd100bde37d.zip
Adding upstream version 2.39.3.upstream/2.39.3
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'disk-utils/fdisk-list.c')
-rw-r--r--disk-utils/fdisk-list.c553
1 files changed, 553 insertions, 0 deletions
diff --git a/disk-utils/fdisk-list.c b/disk-utils/fdisk-list.c
new file mode 100644
index 0000000..f93ed10
--- /dev/null
+++ b/disk-utils/fdisk-list.c
@@ -0,0 +1,553 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * 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.
+ *
+ * Copyright (C) 2014 Karel Zak <kzak@redhat.com>
+ */
+#include <libfdisk.h>
+#include <libsmartcols.h>
+#include <assert.h>
+
+#include "c.h"
+#include "xalloc.h"
+#include "nls.h"
+#include "blkdev.h"
+#include "mbsalign.h"
+#include "pathnames.h"
+#include "canonicalize.h"
+#include "strutils.h"
+#include "sysfs.h"
+#include "colors.h"
+#include "ttyutils.h"
+
+#include "fdisk-list.h"
+
+/* see init_fields() */
+static const char *fields_string;
+static int *fields_ids;
+static size_t fields_nids;
+static const struct fdisk_label *fields_label;
+
+static int is_ide_cdrom_or_tape(char *device)
+{
+ int fd, ret;
+
+ if ((fd = open(device, O_RDONLY|O_NONBLOCK)) < 0)
+ return 0;
+ ret = blkdev_is_cdrom(fd);
+
+ close(fd);
+ return ret;
+}
+
+void list_disk_identifier(struct fdisk_context *cxt)
+{
+ struct fdisk_label *lb = fdisk_get_label(cxt, NULL);
+ char *id = NULL;
+
+ if (fdisk_has_label(cxt))
+ fdisk_info(cxt, _("Disklabel type: %s"),
+ fdisk_label_get_name(lb));
+
+ if (!fdisk_is_details(cxt) && fdisk_get_disklabel_id(cxt, &id) == 0 && id) {
+ fdisk_info(cxt, _("Disk identifier: %s"), id);
+ free(id);
+ }
+}
+
+void list_disk_geometry(struct fdisk_context *cxt)
+{
+ struct fdisk_label *lb = fdisk_get_label(cxt, NULL);
+ uint64_t bytes = fdisk_get_nsectors(cxt) * fdisk_get_sector_size(cxt);
+ char *strsz = size_to_human_string(SIZE_DECIMAL_2DIGITS
+ | SIZE_SUFFIX_SPACE
+ | SIZE_SUFFIX_3LETTER, bytes);
+
+ color_scheme_enable("header", UL_COLOR_BOLD);
+ fdisk_info(cxt, _("Disk %s: %s, %ju bytes, %ju sectors"),
+ fdisk_get_devname(cxt), strsz,
+ bytes, (uintmax_t) fdisk_get_nsectors(cxt));
+ color_disable();
+ free(strsz);
+
+ if (fdisk_get_devmodel(cxt))
+ fdisk_info(cxt, _("Disk model: %s"), fdisk_get_devmodel(cxt));
+
+ if (lb && (fdisk_label_require_geometry(lb) || fdisk_use_cylinders(cxt)))
+ fdisk_info(cxt, _("Geometry: %d heads, %ju sectors/track, %ju cylinders"),
+ fdisk_get_geom_heads(cxt),
+ (uintmax_t) fdisk_get_geom_sectors(cxt),
+ (uintmax_t) fdisk_get_geom_cylinders(cxt));
+
+ fdisk_info(cxt, _("Units: %s of %d * %ld = %ld bytes"),
+ fdisk_get_unit(cxt, FDISK_PLURAL),
+ fdisk_get_units_per_sector(cxt),
+ fdisk_get_sector_size(cxt),
+ fdisk_get_units_per_sector(cxt) * fdisk_get_sector_size(cxt));
+
+ fdisk_info(cxt, _("Sector size (logical/physical): %lu bytes / %lu bytes"),
+ fdisk_get_sector_size(cxt),
+ fdisk_get_physector_size(cxt));
+ fdisk_info(cxt, _("I/O size (minimum/optimal): %lu bytes / %lu bytes"),
+ fdisk_get_minimal_iosize(cxt),
+ fdisk_get_optimal_iosize(cxt));
+ if (fdisk_get_alignment_offset(cxt))
+ fdisk_info(cxt, _("Alignment offset: %lu bytes"),
+ fdisk_get_alignment_offset(cxt));
+
+ list_disk_identifier(cxt);
+}
+
+void list_disklabel(struct fdisk_context *cxt)
+{
+ struct fdisk_table *tb = NULL;
+ struct fdisk_partition *pa = NULL;
+ struct fdisk_iter *itr = NULL;
+ struct fdisk_label *lb;
+ struct libscols_table *out = NULL;
+ const char *bold = NULL;
+ int *ids = NULL; /* IDs of fdisk_fields */
+ size_t nids = 0, i;
+ int post = 0;
+
+ /* print label specific stuff by libfdisk FDISK_ASK_INFO API */
+ fdisk_list_disklabel(cxt);
+
+ /* get partitions and generate output */
+ if (fdisk_get_partitions(cxt, &tb) || fdisk_table_get_nents(tb) <= 0)
+ goto done;
+
+ ids = init_fields(cxt, NULL, &nids);
+ if (!ids)
+ goto done;
+
+ itr = fdisk_new_iter(FDISK_ITER_FORWARD);
+ if (!itr) {
+ fdisk_warn(cxt, _("failed to allocate iterator"));
+ goto done;
+ }
+
+ out = scols_new_table();
+ if (!out) {
+ fdisk_warn(cxt, _("failed to allocate output table"));
+ goto done;
+ }
+
+ if (colors_wanted()) {
+ scols_table_enable_colors(out, 1);
+ bold = color_scheme_get_sequence("header", UL_COLOR_BOLD);
+ }
+
+ lb = fdisk_get_label(cxt, NULL);
+ assert(lb);
+
+ /* define output table columns */
+ for (i = 0; i < nids; i++) {
+ int fl = 0;
+ struct libscols_column *co;
+ const struct fdisk_field *field =
+ fdisk_label_get_field(lb, ids[i]);
+ if (!field)
+ continue;
+ if (fdisk_field_is_number(field))
+ fl |= SCOLS_FL_RIGHT;
+ if (fdisk_field_get_id(field) == FDISK_FIELD_TYPE)
+ fl |= SCOLS_FL_TRUNC;
+
+ co = scols_table_new_column(out,
+ _(fdisk_field_get_name(field)),
+ fdisk_field_get_width(field), fl);
+ if (!co)
+ goto done;
+
+ /* set column header color */
+ if (bold)
+ scols_cell_set_color(scols_column_get_header(co), bold);
+ }
+
+ /* fill-in output table */
+ while (fdisk_table_next_partition(tb, itr, &pa) == 0) {
+ struct libscols_line *ln = scols_table_new_line(out, NULL);
+
+ if (!ln) {
+ fdisk_warn(cxt, _("failed to allocate output line"));
+ goto done;
+ }
+
+ for (i = 0; i < nids; i++) {
+ char *data = NULL;
+
+ if (fdisk_partition_to_string(pa, cxt, ids[i], &data))
+ continue;
+ if (scols_line_refer_data(ln, i, data)) {
+ fdisk_warn(cxt, _("failed to add output data"));
+ goto done;
+ }
+ }
+ }
+
+ /* print */
+ if (!scols_table_is_empty(out)) {
+ fdisk_info(cxt, "%s", ""); /* just line break */
+ scols_print_table(out);
+ }
+
+ /* print warnings */
+ fdisk_reset_iter(itr, FDISK_ITER_FORWARD);
+ while (itr && fdisk_table_next_partition(tb, itr, &pa) == 0) {
+ if (!fdisk_partition_has_start(pa))
+ continue;
+ if (!fdisk_lba_is_phy_aligned(cxt, fdisk_partition_get_start(pa))) {
+ if (!post)
+ fdisk_info(cxt, "%s", ""); /* line break */
+ fdisk_warnx(cxt, _("Partition %zu does not start on physical sector boundary."),
+ fdisk_partition_get_partno(pa) + 1);
+ post++;
+ }
+ if (fdisk_partition_has_wipe(cxt, pa)) {
+ if (!post)
+ fdisk_info(cxt, "%s", ""); /* line break */
+
+ fdisk_info(cxt, _("Filesystem/RAID signature on partition %zu will be wiped."),
+ fdisk_partition_get_partno(pa) + 1);
+ post++;
+ }
+ }
+
+ if (fdisk_table_wrong_order(tb)) {
+ if (!post)
+ fdisk_info(cxt, "%s", ""); /* line break */
+ fdisk_info(cxt, _("Partition table entries are not in disk order."));
+ }
+done:
+ scols_unref_table(out);
+ fdisk_unref_table(tb);
+ fdisk_free_iter(itr);
+}
+
+void list_freespace(struct fdisk_context *cxt)
+{
+ struct fdisk_table *tb = NULL;
+ struct fdisk_partition *pa = NULL;
+ struct fdisk_iter *itr = NULL;
+ struct libscols_table *out = NULL;
+ const char *bold = NULL;
+ size_t i;
+ uintmax_t sumsize = 0, bytes = 0;
+ char *strsz;
+
+ static const char *colnames[] = { N_("Start"), N_("End"), N_("Sectors"), N_("Size") };
+ static const int colids[] = { FDISK_FIELD_START, FDISK_FIELD_END, FDISK_FIELD_SECTORS, FDISK_FIELD_SIZE };
+
+ if (fdisk_get_freespaces(cxt, &tb))
+ goto done;
+
+ itr = fdisk_new_iter(FDISK_ITER_FORWARD);
+ if (!itr) {
+ fdisk_warn(cxt, _("failed to allocate iterator"));
+ goto done;
+ }
+
+ out = scols_new_table();
+ if (!out) {
+ fdisk_warn(cxt, _("failed to allocate output table"));
+ goto done;
+ }
+
+ if (colors_wanted()) {
+ scols_table_enable_colors(out, 1);
+ bold = color_scheme_get_sequence("header", UL_COLOR_BOLD);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(colnames); i++) {
+ struct libscols_column *co = scols_table_new_column(out, _(colnames[i]), 5, SCOLS_FL_RIGHT);
+
+ if (!co)
+ goto done;
+ if (bold)
+ scols_cell_set_color(scols_column_get_header(co), bold);
+ }
+
+ /* fill-in output table */
+ while (fdisk_table_next_partition(tb, itr, &pa) == 0) {
+ struct libscols_line *ln = scols_table_new_line(out, NULL);
+ char *data;
+
+ if (!ln) {
+ fdisk_warn(cxt, _("failed to allocate output line"));
+ goto done;
+ }
+ for (i = 0; i < ARRAY_SIZE(colids); i++) {
+ if (fdisk_partition_to_string(pa, cxt, colids[i], &data))
+ continue;
+ if (scols_line_refer_data(ln, i, data)) {
+ fdisk_warn(cxt, _("failed to add output data"));
+ goto done;
+ }
+ }
+
+ if (fdisk_partition_has_size(pa))
+ sumsize += fdisk_partition_get_size(pa);
+ }
+
+ bytes = sumsize * fdisk_get_sector_size(cxt);
+ strsz = size_to_human_string(SIZE_DECIMAL_2DIGITS
+ | SIZE_SUFFIX_SPACE
+ | SIZE_SUFFIX_3LETTER, bytes);
+
+ color_scheme_enable("header", UL_COLOR_BOLD);
+ fdisk_info(cxt, _("Unpartitioned space %s: %s, %ju bytes, %ju sectors"),
+ fdisk_get_devname(cxt), strsz,
+ bytes, sumsize);
+ color_disable();
+ free(strsz);
+
+ fdisk_info(cxt, _("Units: %s of %d * %ld = %ld bytes"),
+ fdisk_get_unit(cxt, FDISK_PLURAL),
+ fdisk_get_units_per_sector(cxt),
+ fdisk_get_sector_size(cxt),
+ fdisk_get_units_per_sector(cxt) * fdisk_get_sector_size(cxt));
+
+ fdisk_info(cxt, _("Sector size (logical/physical): %lu bytes / %lu bytes"),
+ fdisk_get_sector_size(cxt),
+ fdisk_get_physector_size(cxt));
+
+ /* print */
+ if (!scols_table_is_empty(out)) {
+ fdisk_info(cxt, "%s", ""); /* line break */
+ scols_print_table(out);
+ }
+done:
+ scols_unref_table(out);
+ fdisk_unref_table(tb);
+ fdisk_free_iter(itr);
+}
+
+char *next_proc_partition(FILE **f)
+{
+ char line[128 + 1];
+
+ if (!*f) {
+ *f = fopen(_PATH_PROC_PARTITIONS, "r");
+ if (!*f) {
+ warn(_("cannot open %s"), _PATH_PROC_PARTITIONS);
+ return NULL;
+ }
+ }
+
+ while (fgets(line, sizeof(line), *f)) {
+ char buf[PATH_MAX], *cn;
+ dev_t devno;
+
+ if (sscanf(line, " %*d %*d %*d %128[^\n ]", buf) != 1)
+ continue;
+
+ devno = sysfs_devname_to_devno(buf);
+ if (devno <= 0)
+ continue;
+
+ if (sysfs_devno_is_dm_private(devno, NULL) ||
+ sysfs_devno_is_wholedisk(devno) <= 0)
+ continue;
+
+ if (!sysfs_devno_to_devpath(devno, buf, sizeof(buf)))
+ continue;
+
+ cn = canonicalize_path(buf);
+ if (!cn)
+ continue;
+
+ if (!is_ide_cdrom_or_tape(cn))
+ return cn;
+ }
+ fclose(*f);
+ *f = NULL;
+
+ return NULL;
+}
+
+int print_device_pt(struct fdisk_context *cxt, char *device, int warnme,
+ int verify, int separator)
+{
+ if (fdisk_assign_device(cxt, device, 1) != 0) { /* read-only */
+ if (warnme || errno == EACCES)
+ warn(_("cannot open %s"), device);
+ return -1;
+ }
+
+ if (separator)
+ fputs("\n\n", stdout);
+
+ list_disk_geometry(cxt);
+
+ if (fdisk_has_label(cxt)) {
+ list_disklabel(cxt);
+ if (verify)
+ fdisk_verify_disklabel(cxt);
+ }
+ fdisk_deassign_device(cxt, 1);
+ return 0;
+}
+
+int print_device_freespace(struct fdisk_context *cxt, char *device, int warnme,
+ int separator)
+{
+ if (fdisk_assign_device(cxt, device, 1) != 0) { /* read-only */
+ if (warnme || errno == EACCES)
+ warn(_("cannot open %s"), device);
+ return -1;
+ }
+
+ if (separator)
+ fputs("\n\n", stdout);
+
+ list_freespace(cxt);
+ fdisk_deassign_device(cxt, 1);
+ return 0;
+}
+
+void print_all_devices_pt(struct fdisk_context *cxt, int verify)
+{
+ FILE *f = NULL;
+ int sep = 0;
+ char *dev;
+
+ while ((dev = next_proc_partition(&f))) {
+ print_device_pt(cxt, dev, 0, verify, sep);
+ free(dev);
+ sep = 1;
+ }
+}
+
+void print_all_devices_freespace(struct fdisk_context *cxt)
+{
+ FILE *f = NULL;
+ int sep = 0;
+ char *dev;
+
+ while ((dev = next_proc_partition(&f))) {
+ print_device_freespace(cxt, dev, 0, sep);
+ free(dev);
+ sep = 1;
+ }
+}
+
+/* usable for example in usage() */
+void list_available_columns(FILE *out)
+{
+ size_t i;
+ int termwidth;
+ struct fdisk_label *lb = NULL;
+ struct fdisk_context *cxt = fdisk_new_context();
+
+ if (!cxt)
+ return;
+
+ termwidth = get_terminal_width(80);
+
+ fprintf(out, USAGE_COLUMNS);
+
+ while (fdisk_next_label(cxt, &lb) == 0) {
+ size_t width = 6; /* label name and separators */
+
+ fprintf(out, " %s:", fdisk_label_get_name(lb));
+ for (i = 1; i < FDISK_NFIELDS; i++) {
+ const struct fdisk_field *fl = fdisk_label_get_field(lb, i);
+ const char *name = fl ? fdisk_field_get_name(fl) : NULL;
+ size_t len;
+
+ if (!name)
+ continue;
+ len = strlen(name) + 1;
+ if (width + len > (size_t) termwidth) {
+ fputs("\n ", out);
+ width = 6;
+ }
+ fprintf(out, " %s", name);
+ width += len;
+ }
+ fputc('\n', out);
+ }
+
+ fdisk_unref_context(cxt);
+}
+
+static int fieldname_to_id(const char *name, size_t namesz)
+{
+ const struct fdisk_field *fl;
+ char buf[namesz + 1];
+
+ assert(name);
+ assert(namesz);
+ assert(fields_label);
+
+ memcpy(buf, name, namesz);
+ buf[namesz] = '\0';
+
+ fl = fdisk_label_get_field_by_name(fields_label, buf);
+ if (!fl) {
+ warnx(_("%s unknown column: %s"),
+ fdisk_label_get_name(fields_label), buf);
+ return -1;
+ }
+ return fdisk_field_get_id(fl);
+}
+
+/*
+ * Initialize array with output columns (fields_ids[]) according to
+ * comma delimited list of columns (@str). If the list string is not
+ * defined then use library defaults. This function is "-o <list>"
+ * backend.
+ *
+ * If the columns are already initialized then returns already existing columns.
+ */
+int *init_fields(struct fdisk_context *cxt, const char *str, size_t *n)
+{
+ int *dflt_ids = NULL;
+ struct fdisk_label *lb;
+
+ if (!fields_string)
+ fields_string = str;
+ if (!cxt)
+ goto done;
+
+ lb = fdisk_get_label(cxt, NULL);
+
+ if (!lb || fields_label != lb) { /* label changed: reset */
+ free(fields_ids);
+ fields_ids = NULL;
+ fields_label = lb;
+ fields_nids = 0;
+ }
+
+ if (!fields_label) /* no label */
+ goto done;
+ if (fields_nids)
+ goto done; /* already initialized */
+
+ /* library default */
+ if (fdisk_label_get_fields_ids(NULL, cxt, &dflt_ids, &fields_nids))
+ goto done;
+
+ fields_ids = xcalloc(FDISK_NFIELDS * 2, sizeof(int));
+
+ /* copy defaults to the list with wanted fields */
+ memcpy(fields_ids, dflt_ids, fields_nids * sizeof(int));
+ free(dflt_ids);
+
+ /* extend or replace fields_nids[] according to fields_string */
+ if (fields_string &&
+ string_add_to_idarray(fields_string, fields_ids, FDISK_NFIELDS * 2,
+ &fields_nids, fieldname_to_id) < 0)
+ exit(EXIT_FAILURE);
+done:
+ fields_label = NULL;
+ if (n)
+ *n = fields_nids;
+ return fields_ids;
+}
+