diff options
Diffstat (limited to 'sys-utils/mount.c')
| -rw-r--r-- | sys-utils/mount.c | 49 |
1 files changed, 36 insertions, 13 deletions
diff --git a/sys-utils/mount.c b/sys-utils/mount.c index dba6fca..50e66de 100644 --- a/sys-utils/mount.c +++ b/sys-utils/mount.c @@ -1,4 +1,6 @@ /* + * SPDX-License-Identifier: GPL-2.0-or-later + * * mount(8) -- mount a filesystem * * Copyright (C) 2011 Red Hat, Inc. All rights reserved. @@ -8,17 +10,7 @@ * 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 would 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, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ - #include <stdio.h> #include <stdlib.h> #include <errno.h> @@ -482,7 +474,7 @@ static void __attribute__((__noreturn__)) usage(void) FILE *out = stdout; fputs(USAGE_HEADER, out); - printf(_( + fprintf(out, _( " %1$s [-lhV]\n" " %1$s -a [options]\n" " %1$s [options] [--source] <source> | [--target] <directory>\n" @@ -501,6 +493,12 @@ static void __attribute__((__noreturn__)) usage(void) fputs(_(" -T, --fstab <path> alternative file to /etc/fstab\n"), out); fputs(_(" -i, --internal-only don't call the mount.<type> helpers\n"), out); fputs(_(" -l, --show-labels show also filesystem labels\n"), out); + fputs(_(" --map-groups <inner>:<outer>:<count>\n" + " add the specified GID map to an ID-mapped mount\n"), out); + fputs(_(" --map-users <inner>:<outer>:<count>\n" + " add the specified UID map to an ID-mapped mount\n"), out); + fputs(_(" --map-users /proc/<pid>/ns/user\n" + " specify the user namespace for an ID-mapped mount\n"), out); fputs(_(" -m, --mkdir[=<mode>] alias to '-o X-mount.mkdir[=<mode>]'\n"), out); fputs(_(" -n, --no-mtab don't write to /etc/mtab\n"), out); fputs(_(" --options-mode <mode>\n" @@ -523,7 +521,7 @@ static void __attribute__((__noreturn__)) usage(void) fputs(_(" -N, --namespace <ns> perform mount in another namespace\n"), out); fputs(USAGE_SEPARATOR, out); - printf(USAGE_HELP_OPTIONS(25)); + fprintf(out, USAGE_HELP_OPTIONS(25)); fputs(USAGE_SEPARATOR, out); fputs(_("Source:\n"), out); @@ -552,7 +550,7 @@ static void __attribute__((__noreturn__)) usage(void) fputs(_(" --make-rprivate recursively mark a whole subtree as private\n"), out); fputs(_(" --make-runbindable recursively mark a whole subtree as unbindable\n"), out); - printf(USAGE_MAN_TAIL("mount(8)")); + fprintf(out, USAGE_MAN_TAIL("mount(8)")); exit(MNT_EX_SUCCESS); } @@ -615,6 +613,7 @@ int main(int argc, char **argv) int c, rc = MNT_EX_SUCCESS, all = 0, show_labels = 0; struct libmnt_context *cxt; struct libmnt_table *fstab = NULL; + char *idmap = NULL; char *srcbuf = NULL; char *types = NULL; int oper = 0, is_move = 0; @@ -630,6 +629,8 @@ int main(int argc, char **argv) MOUNT_OPT_RSLAVE, MOUNT_OPT_RPRIVATE, MOUNT_OPT_RUNBINDABLE, + MOUNT_OPT_MAP_GROUPS, + MOUNT_OPT_MAP_USERS, MOUNT_OPT_TARGET, MOUNT_OPT_TARGET_PREFIX, MOUNT_OPT_SOURCE, @@ -668,6 +669,8 @@ int main(int argc, char **argv) { "make-rslave", no_argument, NULL, MOUNT_OPT_RSLAVE }, { "make-rprivate", no_argument, NULL, MOUNT_OPT_RPRIVATE }, { "make-runbindable", no_argument, NULL, MOUNT_OPT_RUNBINDABLE }, + { "map-groups", required_argument, NULL, MOUNT_OPT_MAP_GROUPS }, + { "map-users", required_argument, NULL, MOUNT_OPT_MAP_USERS }, { "mkdir", optional_argument, NULL, 'm' }, { "no-canonicalize", no_argument, NULL, 'c' }, { "internal-only", no_argument, NULL, 'i' }, @@ -850,6 +853,23 @@ int main(int argc, char **argv) append_option(cxt, "runbindable", NULL); propa = 1; break; + case MOUNT_OPT_MAP_GROUPS: + case MOUNT_OPT_MAP_USERS: + if (*optarg == '=') + optarg++; + if (idmap && (*idmap == '/' || *optarg == '/')) { + warnx(_("bad usage")); + errtryhelp(MNT_EX_USAGE); + } else if (*optarg == '/') { + idmap = xstrdup(optarg); + } else { + char *tmp; + xasprintf(&tmp, "%s%s%s%s", idmap ? idmap : "", idmap ? " " : "", + c == MOUNT_OPT_MAP_GROUPS ? "g:" : "u:", optarg); + free(idmap); + idmap = tmp; + } + break; case MOUNT_OPT_TARGET: mnt_context_disable_swapmatch(cxt, 1); mnt_context_set_target(cxt, optarg); @@ -898,6 +918,9 @@ int main(int argc, char **argv) argc -= optind; argv += optind; + if (idmap) + append_option(cxt, "X-mount.idmap", idmap); + optmode |= optmode_mode | optmode_src; if (optmode) { if (!optmode_mode) |