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Systemd/src/test/test-user-util.c
Lennart Poettering 7e61fd02b0 user-util: synthesize user records for "nobody" the same way as for "root" 
We already synthesize records for both "root" and "nobody" in
nss-systemd. Let's do the same in our own NSS wrappers that are supposed
to bypass NSS if possible. Previously this was done for "root" only, but
let's clean this up, and do the same for "nobody" too, so that we
synthesize records the same way everywhere, regardless whether in NSS or
internally.
2017-12-06 13:40:50 +01:00

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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2015 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 "alloc-util.h"
#include "macro.h"
#include "string-util.h"
#include "user-util.h"
#include "util.h"
#include "path-util.h"
static void test_uid_to_name_one(uid_t uid, const char *name) {
_cleanup_free_ char *t = NULL;
assert_se(t = uid_to_name(uid));
assert_se(streq_ptr(t, name));
}
static void test_gid_to_name_one(gid_t gid, const char *name) {
_cleanup_free_ char *t = NULL;
assert_se(t = gid_to_name(gid));
assert_se(streq_ptr(t, name));
}
static void test_parse_uid(void) {
int r;
uid_t uid;
r = parse_uid("100", &uid);
assert_se(r == 0);
assert_se(uid == 100);
r = parse_uid("65535", &uid);
assert_se(r == -ENXIO);
r = parse_uid("asdsdas", &uid);
assert_se(r == -EINVAL);
}
static void test_uid_ptr(void) {
assert_se(UID_TO_PTR(0) != NULL);
assert_se(UID_TO_PTR(1000) != NULL);
assert_se(PTR_TO_UID(UID_TO_PTR(0)) == 0);
assert_se(PTR_TO_UID(UID_TO_PTR(1000)) == 1000);
}
static void test_valid_user_group_name(void) {
assert_se(!valid_user_group_name(NULL));
assert_se(!valid_user_group_name(""));
assert_se(!valid_user_group_name("1"));
assert_se(!valid_user_group_name("65535"));
assert_se(!valid_user_group_name("-1"));
assert_se(!valid_user_group_name("-kkk"));
assert_se(!valid_user_group_name("rööt"));
assert_se(!valid_user_group_name("."));
assert_se(!valid_user_group_name("eff.eff"));
assert_se(!valid_user_group_name("foo\nbar"));
assert_se(!valid_user_group_name("0123456789012345678901234567890123456789"));
assert_se(!valid_user_group_name_or_id("aaa:bbb"));
assert_se(valid_user_group_name("root"));
assert_se(valid_user_group_name("lennart"));
assert_se(valid_user_group_name("LENNART"));
assert_se(valid_user_group_name("_kkk"));
assert_se(valid_user_group_name("kkk-"));
assert_se(valid_user_group_name("kk-k"));
assert_se(valid_user_group_name("some5"));
assert_se(!valid_user_group_name("5some"));
assert_se(valid_user_group_name("INNER5NUMBER"));
}
static void test_valid_user_group_name_or_id(void) {
assert_se(!valid_user_group_name_or_id(NULL));
assert_se(!valid_user_group_name_or_id(""));
assert_se(valid_user_group_name_or_id("0"));
assert_se(valid_user_group_name_or_id("1"));
assert_se(valid_user_group_name_or_id("65534"));
assert_se(!valid_user_group_name_or_id("65535"));
assert_se(valid_user_group_name_or_id("65536"));
assert_se(!valid_user_group_name_or_id("-1"));
assert_se(!valid_user_group_name_or_id("-kkk"));
assert_se(!valid_user_group_name_or_id("rööt"));
assert_se(!valid_user_group_name_or_id("."));
assert_se(!valid_user_group_name_or_id("eff.eff"));
assert_se(!valid_user_group_name_or_id("foo\nbar"));
assert_se(!valid_user_group_name_or_id("0123456789012345678901234567890123456789"));
assert_se(!valid_user_group_name_or_id("aaa:bbb"));
assert_se(valid_user_group_name_or_id("root"));
assert_se(valid_user_group_name_or_id("lennart"));
assert_se(valid_user_group_name_or_id("LENNART"));
assert_se(valid_user_group_name_or_id("_kkk"));
assert_se(valid_user_group_name_or_id("kkk-"));
assert_se(valid_user_group_name_or_id("kk-k"));
assert_se(valid_user_group_name_or_id("some5"));
assert_se(!valid_user_group_name_or_id("5some"));
assert_se(valid_user_group_name_or_id("INNER5NUMBER"));
}
static void test_valid_gecos(void) {
assert_se(!valid_gecos(NULL));
assert_se(valid_gecos(""));
assert_se(valid_gecos("test"));
assert_se(valid_gecos("Ümläüt"));
assert_se(!valid_gecos("In\nvalid"));
assert_se(!valid_gecos("In:valid"));
}
static void test_valid_home(void) {
assert_se(!valid_home(NULL));
assert_se(!valid_home(""));
assert_se(!valid_home("."));
assert_se(!valid_home("/home/.."));
assert_se(!valid_home("/home/../"));
assert_se(!valid_home("/home\n/foo"));
assert_se(!valid_home("./piep"));
assert_se(!valid_home("piep"));
assert_se(!valid_home("/home/user:lennart"));
assert_se(valid_home("/"));
assert_se(valid_home("/home"));
assert_se(valid_home("/home/foo"));
}
static void test_get_user_creds_one(const char *id, const char *name, uid_t uid, gid_t gid, const char *home, const char *shell) {
const char *rhome;
const char *rshell;
uid_t ruid;
gid_t rgid;
assert_se(get_user_creds(&id, &ruid, &rgid, &rhome, &rshell) >= 0);
assert_se(streq_ptr(id, name));
assert_se(ruid == uid);
assert_se(rgid == gid);
assert_se(path_equal(rhome, home));
assert_se(path_equal(rshell, shell));
}
static void test_get_group_creds_one(const char *id, const char *name, gid_t gid) {
gid_t rgid;
assert_se(get_group_creds(&id, &rgid) >= 0);
assert_se(streq_ptr(id, name));
assert_se(rgid == gid);
}
int main(int argc, char*argv[]) {
test_uid_to_name_one(0, "root");
test_uid_to_name_one(UID_NOBODY, NOBODY_USER_NAME);
test_uid_to_name_one(0xFFFF, "65535");
test_uid_to_name_one(0xFFFFFFFF, "4294967295");
test_gid_to_name_one(0, "root");
test_gid_to_name_one(GID_NOBODY, NOBODY_GROUP_NAME);
test_gid_to_name_one(TTY_GID, "tty");
test_gid_to_name_one(0xFFFF, "65535");
test_gid_to_name_one(0xFFFFFFFF, "4294967295");
test_get_user_creds_one("root", "root", 0, 0, "/root", "/bin/sh");
test_get_user_creds_one("0", "root", 0, 0, "/root", "/bin/sh");
test_get_user_creds_one(NOBODY_USER_NAME, NOBODY_USER_NAME, UID_NOBODY, GID_NOBODY, "/", "/sbin/nologin");
test_get_user_creds_one("65534", NOBODY_USER_NAME, UID_NOBODY, GID_NOBODY, "/", "/sbin/nologin");
test_get_group_creds_one("root", "root", 0);
test_get_group_creds_one("0", "root", 0);
test_get_group_creds_one(NOBODY_GROUP_NAME, NOBODY_GROUP_NAME, GID_NOBODY);
test_get_group_creds_one("65534", NOBODY_GROUP_NAME, GID_NOBODY);
test_parse_uid();
test_uid_ptr();
test_valid_user_group_name();
test_valid_user_group_name_or_id();
test_valid_gecos();
test_valid_home();
return 0;
}
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