/* SPDX-License-Identifier: LGPL-2.1+ */
-/***
- This file is part of systemd.
-
- Copyright 2016 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
#include <sys/mount.h>
#include "alloc-util.h"
-#include "def.h"
-#include "fd-util.h"
-#include "fileio.h"
-#include "hashmap.h"
-#include "log.h"
#include "mount-util.h"
-#include "path-util.h"
#include "string-util.h"
-
-static void test_mount_propagation_flags(const char *name, int ret, unsigned long expected) {
- long unsigned flags;
-
- assert_se(mount_propagation_flags_from_string(name, &flags) == ret);
-
- if (ret >= 0) {
- const char *c;
-
- assert_se(flags == expected);
-
- c = mount_propagation_flags_to_string(flags);
- if (isempty(name))
- assert_se(isempty(c));
- else
- assert_se(streq(c, name));
- }
-}
-
-static void test_mnt_id(void) {
- _cleanup_fclose_ FILE *f = NULL;
- Hashmap *h;
- Iterator i;
- char *p;
- void *k;
- int r;
-
- assert_se(f = fopen("/proc/self/mountinfo", "re"));
- assert_se(h = hashmap_new(&trivial_hash_ops));
-
- for (;;) {
- _cleanup_free_ char *line = NULL, *path = NULL;
- int mnt_id;
-
- r = read_line(f, LONG_LINE_MAX, &line);
- if (r == 0)
- break;
- assert_se(r > 0);
-
- assert_se(sscanf(line, "%i %*s %*s %*s %ms", &mnt_id, &path) == 2);
-
- assert_se(hashmap_put(h, INT_TO_PTR(mnt_id), path) >= 0);
- path = NULL;
- }
-
- HASHMAP_FOREACH_KEY(p, k, h, i) {
- int mnt_id = PTR_TO_INT(k), mnt_id2;
-
- r = path_get_mnt_id(p, &mnt_id2);
- if (r == -EOPNOTSUPP) { /* kernel or file system too old? */
- log_debug("%s doesn't support mount IDs\n", p);
- continue;
- }
- if (IN_SET(r, -EACCES, -EPERM)) {
- log_debug("Can't access %s\n", p);
- continue;
- }
-
- log_debug("mnt id of %s is %i\n", p, mnt_id2);
-
- if (mnt_id == mnt_id2)
- continue;
-
- /* The ids don't match? If so, then there are two mounts on the same path, let's check if that's really
- * the case */
- assert_se(path_equal_ptr(hashmap_get(h, INT_TO_PTR(mnt_id2)), p));
- }
-
- while ((p = hashmap_steal_first(h)))
- free(p);
-
- hashmap_free(h);
+#include "tests.h"
+
+static void test_mount_option_mangle(void) {
+ char *opts = NULL;
+ unsigned long f;
+
+ assert_se(mount_option_mangle(NULL, MS_RDONLY|MS_NOSUID, &f, &opts) == 0);
+ assert_se(f == (MS_RDONLY|MS_NOSUID));
+ assert_se(opts == NULL);
+
+ assert_se(mount_option_mangle("", MS_RDONLY|MS_NOSUID, &f, &opts) == 0);
+ assert_se(f == (MS_RDONLY|MS_NOSUID));
+ assert_se(opts == NULL);
+
+ assert_se(mount_option_mangle("ro,nosuid,nodev,noexec", 0, &f, &opts) == 0);
+ assert_se(f == (MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC));
+ assert_se(opts == NULL);
+
+ assert_se(mount_option_mangle("ro,nosuid,nodev,noexec,mode=755", 0, &f, &opts) == 0);
+ assert_se(f == (MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC));
+ assert_se(streq(opts, "mode=755"));
+ opts = mfree(opts);
+
+ assert_se(mount_option_mangle("rw,nosuid,foo,hogehoge,nodev,mode=755", 0, &f, &opts) == 0);
+ assert_se(f == (MS_NOSUID|MS_NODEV));
+ assert_se(streq(opts, "foo,hogehoge,mode=755"));
+ opts = mfree(opts);
+
+ assert_se(mount_option_mangle("rw,nosuid,nodev,noexec,relatime,net_cls,net_prio", MS_RDONLY, &f, &opts) == 0);
+ assert_se(f == (MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_RELATIME));
+ assert_se(streq(opts, "net_cls,net_prio"));
+ opts = mfree(opts);
+
+ assert_se(mount_option_mangle("rw,nosuid,nodev,relatime,size=1630748k,mode=700,uid=1000,gid=1000", MS_RDONLY, &f, &opts) == 0);
+ assert_se(f == (MS_NOSUID|MS_NODEV|MS_RELATIME));
+ assert_se(streq(opts, "size=1630748k,mode=700,uid=1000,gid=1000"));
+ opts = mfree(opts);
+
+ assert_se(mount_option_mangle("size=1630748k,rw,gid=1000,,,nodev,relatime,,mode=700,nosuid,uid=1000", MS_RDONLY, &f, &opts) == 0);
+ assert_se(f == (MS_NOSUID|MS_NODEV|MS_RELATIME));
+ assert_se(streq(opts, "size=1630748k,gid=1000,mode=700,uid=1000"));
+ opts = mfree(opts);
+
+ assert_se(mount_option_mangle("rw,exec,size=8143984k,nr_inodes=2035996,mode=755", MS_RDONLY|MS_NOSUID|MS_NOEXEC|MS_NODEV, &f, &opts) == 0);
+ assert_se(f == (MS_NOSUID|MS_NODEV));
+ assert_se(streq(opts, "size=8143984k,nr_inodes=2035996,mode=755"));
+ opts = mfree(opts);
+
+ assert_se(mount_option_mangle("rw,relatime,fmask=0022,,,dmask=0022", MS_RDONLY, &f, &opts) == 0);
+ assert_se(f == MS_RELATIME);
+ assert_se(streq(opts, "fmask=0022,dmask=0022"));
+ opts = mfree(opts);
+
+ assert_se(mount_option_mangle("rw,relatime,fmask=0022,dmask=0022,\"hogehoge", MS_RDONLY, &f, &opts) < 0);
}
int main(int argc, char *argv[]) {
+ test_setup_logging(LOG_DEBUG);
- log_set_max_level(LOG_DEBUG);
-
- test_mount_propagation_flags("shared", 0, MS_SHARED);
- test_mount_propagation_flags("slave", 0, MS_SLAVE);
- test_mount_propagation_flags("private", 0, MS_PRIVATE);
- test_mount_propagation_flags(NULL, 0, 0);
- test_mount_propagation_flags("", 0, 0);
- test_mount_propagation_flags("xxxx", -EINVAL, 0);
- test_mount_propagation_flags(" ", -EINVAL, 0);
-
- test_mnt_id();
+ test_mount_option_mangle();
return 0;
}
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