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tests: add test for rootfs mount options
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Christian Brauner
parent
704cadd524
commit
587b2dff94
1
.gitignore
vendored
1
.gitignore
vendored
@ -107,6 +107,7 @@ src/tests/lxc-test-basic
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src/tests/lxc-test-cve-2019-5736
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src/tests/lxc-test-mount-injection
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src/tests/lxc-test-sys-mixed
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src/tests/lxc-test-rootfs-options
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config/compile
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config/config.guess
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@ -759,6 +759,60 @@ if !HAVE_STRCHRNUL
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lxc_test_sys_mixed_SOURCES += ../include/strchrnul.c ../include/strchrnul.h
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endif
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lxc_test_rootfs_options_SOURCES = rootfs_options.c \
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../lxc/af_unix.c ../lxc/af_unix.h \
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../lxc/caps.c ../lxc/caps.h \
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../lxc/cgroups/cgfsng.c \
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../lxc/cgroups/cgroup.c ../lxc/cgroups/cgroup.h \
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../lxc/cgroups/cgroup2_devices.c ../lxc/cgroups/cgroup2_devices.h \
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../lxc/cgroups/cgroup_utils.c ../lxc/cgroups/cgroup_utils.h \
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../lxc/commands.c ../lxc/commands.h \
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../lxc/commands_utils.c ../lxc/commands_utils.h \
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../lxc/conf.c ../lxc/conf.h \
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../lxc/confile.c ../lxc/confile.h \
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../lxc/confile_utils.c ../lxc/confile_utils.h \
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../lxc/error.c ../lxc/error.h \
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../lxc/file_utils.c ../lxc/file_utils.h \
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../include/netns_ifaddrs.c ../include/netns_ifaddrs.h \
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../lxc/initutils.c ../lxc/initutils.h \
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../lxc/log.c ../lxc/log.h \
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../lxc/lxclock.c ../lxc/lxclock.h \
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../lxc/mainloop.c ../lxc/mainloop.h \
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../lxc/monitor.c ../lxc/monitor.h \
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../lxc/mount_utils.c ../lxc/mount_utils.h \
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../lxc/namespace.c ../lxc/namespace.h \
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../lxc/network.c ../lxc/network.h \
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../lxc/nl.c ../lxc/nl.h \
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../lxc/parse.c ../lxc/parse.h \
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../lxc/process_utils.c ../lxc/process_utils.h \
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../lxc/ringbuf.c ../lxc/ringbuf.h \
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../lxc/start.c ../lxc/start.h \
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../lxc/state.c ../lxc/state.h \
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../lxc/storage/btrfs.c ../lxc/storage/btrfs.h \
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../lxc/storage/dir.c ../lxc/storage/dir.h \
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../lxc/storage/loop.c ../lxc/storage/loop.h \
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../lxc/storage/lvm.c ../lxc/storage/lvm.h \
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../lxc/storage/nbd.c ../lxc/storage/nbd.h \
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../lxc/storage/overlay.c ../lxc/storage/overlay.h \
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../lxc/storage/rbd.c ../lxc/storage/rbd.h \
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../lxc/storage/rsync.c ../lxc/storage/rsync.h \
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../lxc/storage/storage.c ../lxc/storage/storage.h \
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../lxc/storage/storage_utils.c ../lxc/storage/storage_utils.h \
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../lxc/storage/zfs.c ../lxc/storage/zfs.h \
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../lxc/sync.c ../lxc/sync.h \
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../lxc/string_utils.c ../lxc/string_utils.h \
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../lxc/terminal.c ../lxc/terminal.h \
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../lxc/utils.c ../lxc/utils.h \
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../lxc/uuid.c ../lxc/uuid.h \
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$(LSM_SOURCES)
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if ENABLE_SECCOMP
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lxc_test_rootfs_options_SOURCES += ../lxc/seccomp.c ../lxc/lxcseccomp.h
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endif
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if !HAVE_STRCHRNUL
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lxc_test_rootfs_options_SOURCES += ../include/strchrnul.c ../include/strchrnul.h
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endif
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AM_CFLAGS += -DLXCROOTFSMOUNT=\"$(LXCROOTFSMOUNT)\" \
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-DLXCPATH=\"$(LXCPATH)\" \
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-DLXC_GLOBAL_CONF=\"$(LXC_GLOBAL_CONF)\" \
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@ -818,6 +872,7 @@ bin_PROGRAMS = lxc-test-api-reboot \
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lxc-test-parse-config-file \
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lxc-test-raw-clone \
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lxc-test-reboot \
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lxc-test-rootfs-options \
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lxc-test-saveconfig \
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lxc-test-share-ns \
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lxc-test-shortlived \
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@ -925,6 +980,7 @@ EXTRA_DIST = arch_parse.c \
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may_control.c \
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mount_injection.c \
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parse_config_file.c \
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rootfs_options.c \
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saveconfig.c \
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shortlived.c \
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shutdowntest.c \
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161
src/tests/rootfs_options.c
Normal file
161
src/tests/rootfs_options.c
Normal file
@ -0,0 +1,161 @@
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/* liblxcapi
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*
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* Copyright © 2021 Christian Brauner <christian.brauner@ubuntu.com>.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2, as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#define __STDC_FORMAT_MACROS
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#include <errno.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <lxc/lxccontainer.h>
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#include <lxc/attach_options.h>
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#ifdef HAVE_STATVFS
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#include <sys/statvfs.h>
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#endif
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#include "lxctest.h"
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#include "utils.h"
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static int has_mount_properties(const char *path, unsigned int flags)
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{
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#ifdef HAVE_STATVFS
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int ret;
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struct statvfs sb;
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ret = statvfs(path, &sb);
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if (ret < 0)
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return -errno;
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if ((sb.f_flag & flags) == flags)
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return 0;
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return -EINVAL;
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#else
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return -EOPNOTSUPP;
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#endif
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}
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static int rootfs_options(void *payload)
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{
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int ret;
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ret = has_mount_properties("/",
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MS_NODEV |
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MS_NOSUID |
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MS_RDONLY);
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if (ret != 0) {
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if (ret == -EOPNOTSUPP)
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return EXIT_SUCCESS;
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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int main(int argc, char *argv[])
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{
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int fret = EXIT_FAILURE;
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lxc_attach_options_t attach_options = LXC_ATTACH_OPTIONS_DEFAULT;
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int ret;
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pid_t pid;
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struct lxc_container *c;
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c = lxc_container_new("rootfs-options", NULL);
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if (!c) {
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lxc_error("%s", "Failed to create container \"rootfs-options\"");
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exit(fret);
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}
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if (c->is_defined(c)) {
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lxc_error("%s\n", "Container \"rootfs-options\" is defined");
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goto on_error_put;
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}
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if (!c->createl(c, "busybox", NULL, NULL, 0, NULL)) {
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lxc_error("%s\n", "Failed to create busybox container \"rootfs-options\"");
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goto on_error_put;
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}
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if (!c->is_defined(c)) {
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lxc_error("%s\n", "Container \"rootfs-options\" is not defined");
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goto on_error_put;
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}
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c->clear_config(c);
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if (!c->set_config_item(c, "lxc.rootfs.options", "nodev,nosuid,ro")) {
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lxc_error("%s\n", "Failed to set config item \"lxc.mount.auto=sys:mixed\"");
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goto on_error_put;
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}
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if (!c->load_config(c, NULL)) {
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lxc_error("%s\n", "Failed to load config for container \"rootfs-options\"");
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goto on_error_stop;
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}
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if (!c->want_daemonize(c, true)) {
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lxc_error("%s\n", "Failed to mark container \"rootfs-options\" daemonized");
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goto on_error_stop;
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}
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if (!c->startl(c, 0, NULL)) {
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lxc_error("%s\n", "Failed to start container \"rootfs-options\" daemonized");
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goto on_error_stop;
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}
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/* Leave some time for the container to write something to the log. */
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sleep(2);
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ret = c->attach(c, rootfs_options, NULL, &attach_options, &pid);
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if (ret < 0) {
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lxc_error("%s\n", "Failed to run function in container \"rootfs-options\"");
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goto on_error_stop;
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}
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ret = wait_for_pid(pid);
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if (ret < 0) {
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lxc_error("%s\n", "Function \"rootfs-options\" failed");
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goto on_error_stop;
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}
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fret = 0;
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on_error_stop:
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if (c->is_running(c) && !c->stop(c))
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lxc_error("%s\n", "Failed to stop container \"rootfs-options\"");
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if (!c->destroy(c))
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lxc_error("%s\n", "Failed to destroy container \"rootfs-options\"");
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on_error_put:
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lxc_container_put(c);
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exit(fret);
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}
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