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@@ -68,6 +68,9 @@
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/* From main.c */
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extern int quiet_level;
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+/* Prefix used to indicate a Unix socket in a FooPort configuration. */
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+static const char *unix_socket_prefix = "unix:";
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+
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/** A list of abbreviations and aliases to map command-line options, obsolete
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* option names, or alternative option names, to their current values. */
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static config_abbrev_t option_abbrevs_[] = {
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@@ -5620,6 +5623,47 @@ warn_nonlocal_controller_ports(smartlist_t *ports, unsigned forbid)
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#define CL_PORT_TAKES_HOSTNAMES (1u<<5)
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#define CL_PORT_IS_UNIXSOCKET (1u<<6)
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+#ifdef HAVE_SYS_UN_H
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+
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+/** Parse the given <b>addrport</b> and set <b>path_out</b> if a Unix socket
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+ * path is found. Return 0 on success. On error, a negative value is
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+ * returned, -ENOENT if no Unix statement found, -EINVAL if the socket path
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+ * is empty and -ENOSYS if AF_UNIX is not supported (see function in the
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+ * #else statement below). */
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+
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+int
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+config_parse_unix_port(const char *addrport, char **path_out)
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+{
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+ tor_assert(path_out);
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+ tor_assert(addrport);
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+
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+ if (strcmpstart(addrport, unix_socket_prefix)) {
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+ /* Not a Unix socket path. */
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+ return -ENOENT;
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+ }
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+
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+ if (strlen(addrport + strlen(unix_socket_prefix)) == 0) {
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+ /* Empty socket path, not very usable. */
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+ return -EINVAL;
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+ }
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+
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+ *path_out = tor_strdup(addrport + strlen(unix_socket_prefix));
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+ return 0;
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+}
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+
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+#else /* defined(HAVE_SYS_UN_H) */
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+
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+int
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+config_parse_unix_port(const char *addrport, char **path_out)
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+{
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+ log_warn(LD_CONFIG,
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+ "Port configuration %s is for an AF_UNIX socket, but we have no"
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+ "support available on this platform",
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+ escaped(addrport));
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+ return -ENOSYS;
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+}
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+#endif /* defined(HAVE_SYS_UN_H) */
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+
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/**
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* Parse port configuration for a single port type.
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*
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@@ -5681,6 +5725,7 @@ parse_port_config(smartlist_t *out,
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const unsigned takes_hostnames = flags & CL_PORT_TAKES_HOSTNAMES;
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const unsigned is_unix_socket = flags & CL_PORT_IS_UNIXSOCKET;
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int got_zero_port=0, got_nonzero_port=0;
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+ char *unix_socket_path = NULL;
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/* FooListenAddress is deprecated; let's make it work like it used to work,
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* though. */
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@@ -5785,7 +5830,7 @@ parse_port_config(smartlist_t *out,
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for (; ports; ports = ports->next) {
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tor_addr_t addr;
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- int port;
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+ int port, ret;
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int sessiongroup = SESSION_GROUP_UNSET;
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unsigned isolation = ISO_DEFAULT;
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int prefer_no_auth = 0;
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@@ -5814,8 +5859,20 @@ parse_port_config(smartlist_t *out,
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/* Now parse the addr/port value */
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addrport = smartlist_get(elts, 0);
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- if (is_unix_socket) {
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- /* leave it as it is. */
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+
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+ /* Let's start to check if it's a Unix socket path. */
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+ ret = config_parse_unix_port(addrport, &unix_socket_path);
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+ if (ret < 0 && ret != -ENOENT) {
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+ if (ret == -EINVAL) {
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+ log_warn(LD_CONFIG, "Empty Unix socket path.");
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+ }
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+ goto err;
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+ }
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+
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+ if (unix_socket_path) {
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+ port = 1;
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+ } else if (is_unix_socket) {
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+ unix_socket_path = tor_strdup(addrport);
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if (!strcmp(addrport, "0"))
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port = 0;
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else
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@@ -6005,12 +6062,13 @@ parse_port_config(smartlist_t *out,
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}
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if (out && port) {
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- size_t namelen = is_unix_socket ? strlen(addrport) : 0;
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+ size_t namelen = unix_socket_path ? strlen(unix_socket_path) : 0;
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port_cfg_t *cfg = port_cfg_new(namelen);
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- if (is_unix_socket) {
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+ if (unix_socket_path) {
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tor_addr_make_unspec(&cfg->addr);
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- memcpy(cfg->unix_addr, addrport, strlen(addrport) + 1);
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+ memcpy(cfg->unix_addr, unix_socket_path, namelen + 1);
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cfg->is_unix_addr = 1;
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+ tor_free(unix_socket_path);
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} else {
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tor_addr_copy(&cfg->addr, &addr);
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cfg->port = port;
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