sys_linux: improve error message for failed PHC open

If the specified PHC device cannot be opened directly, an attempt is
made to open it as a network interface. When that fails, the error
"Could not open PHC of iface" is misleading the user that it was handled
only as an interface. Change the message to "Could not open PHC (of)" to
better cover both possibilities. Also remove the errno as it's not set
in all code paths.

client.c

@@ -270,7 +270,7 @@ open_unix_socket(char *server_path)
   if (snprintf(sock_dir1, sizeof (sock_dir1),
                "%s/chronyc.%d", sock_dir0, (int)getpid()) >= sizeof (sock_dir1) ||
       snprintf(sock_dir2, sizeof (sock_dir2),
-               "%s/%s", sock_dir1, rand_dir) >= sizeof (sock_dir1) ||
+               "%s/%s", sock_dir1, rand_dir) >= sizeof (sock_dir2) ||
       snprintf(sock_path, sizeof (sock_path),
                "%s/sock", sock_dir2) >= sizeof (sock_path)) {
     LOG(LOGS_ERR, "Server socket path %s is too long", server_path);

sys_linux.c

@@ -944,8 +944,7 @@ SYS_Linux_OpenPHC(const char *device, int flags)
   if (phc_fd < 0) {
     phc_fd = open_phc_by_iface_name(device, flags);
     if (phc_fd < 0) {
-      LOG(LOGS_ERR, "Could not open PHC of iface %s : %s",
-          device, strerror(errno));
+      LOG(LOGS_ERR, "Could not open PHC (of) %s", device);
       return -1;
     }
     phc_fd = verify_fd_is_phc(phc_fd);

test/simulation/README

@@ -1,7 +1,7 @@
 This is a collection of simulation tests using the clknetsim simulator
 (supported on Linux only).
 
-https://github.com/mlichvar/clknetsim
+https://gitlab.com/chrony/clknetsim
 
 The CLKNETSIM_PATH environment variable should point to the directory where
 clknetsim was downloaded and compiled. If the variable is not set, the tests

test/system/test.common

@@ -213,7 +213,10 @@ generate_chrony_conf() {
 
 	user=$(get_user)
 	ntpport=$(get_free_port)
-	cmdport=$(get_free_port)
+	while true; do
+		cmdport=$(get_free_port)
+		[ "$ntpport" -ne "$cmdport" ] && break
+	done
 
 	echo "0.0 10000" > "$TEST_LIBDIR/driftfile"
 	echo "1 MD5 abcdefghijklmnopq" > "$TEST_DIR/keys"

test/unit/nts_ke_session.c

@@ -193,6 +193,8 @@ test_unit(void)
 
     server_cred = NKSN_CreateServerCertCredentials(&cert, &key, 1);
     client_cred = NKSN_CreateClientCertCredentials(&cert, &cert_id, 1, 0);
+    TEST_CHECK(server_cred);
+    TEST_CHECK(client_cred);
 
     TEST_CHECK(socketpair(AF_UNIX, SOCK_STREAM, 0, sock_fds) == 0);
     TEST_CHECK(fcntl(sock_fds[0], F_SETFL, O_NONBLOCK) == 0);

util.c

@@ -1203,7 +1203,7 @@ create_dir(char *p, mode_t mode, uid_t uid, gid_t gid)
   }
 
   /* Set its owner */
-  if (chown(p, uid, gid) < 0) {
+  if (lchown(p, uid, gid) < 0) {
     LOG(LOGS_ERR, "Could not change ownership of %s : %s", p, strerror(errno));
     /* Don't leave it there with incorrect ownership */
     rmdir(p);