wpa_supplicant: Update to 29-Aug-2012 TOT
commit 6ffdc2f7bd496ace7a46e055f9714e7db4b1f722
Author: Jouni Malinen <jouni@qca.qualcomm.com>
Date: Fri Mar 2 22:31:04 2012 +0200
WFD: Add preliminary WSD request processing and response
This commit does not yet address support for different device roles,
i.e., the same set of subelements are returned regardless of which
role was indicated in the request.
Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
Change-Id: I9d63acce719b982c02e589bb59602382e82988c8
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/ap/vlan_util.c b/src/ap/vlan_util.c
new file mode 100644
index 0000000..cc54051
--- /dev/null
+++ b/src/ap/vlan_util.c
@@ -0,0 +1,177 @@
+/*
+ * hostapd / VLAN netlink api
+ * Copyright (c) 2012, Michael Braun <michael-dev@fami-braun.de>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+#include <sys/ioctl.h>
+#include <linux/sockios.h>
+#include <linux/if_vlan.h>
+#include <netlink/genl/genl.h>
+#include <netlink/genl/family.h>
+#include <netlink/genl/ctrl.h>
+#include <netlink/route/link.h>
+#include <netlink/route/link/vlan.h>
+
+#include "utils/common.h"
+#include "utils/eloop.h"
+#include "hostapd.h"
+#include "vlan_util.h"
+
+/*
+ * Add a vlan interface with name 'vlan_if_name', VLAN ID 'vid' and
+ * tagged interface 'if_name'.
+ *
+ * returns -1 on error
+ * returns 1 if the interface already exists
+ * returns 0 otherwise
+*/
+int vlan_add(const char *if_name, int vid, const char *vlan_if_name)
+{
+ int ret = -1;
+ struct nl_sock *handle = NULL;
+ struct nl_cache *cache = NULL;
+ struct rtnl_link *rlink = NULL;
+ int if_idx = 0;
+
+ wpa_printf(MSG_DEBUG, "VLAN: vlan_add(if_name=%s, vid=%d, "
+ "vlan_if_name=%s)", if_name, vid, vlan_if_name);
+
+ if ((os_strlen(if_name) + 1) > IFNAMSIZ) {
+ wpa_printf(MSG_ERROR, "VLAN: Interface name too long: '%s'",
+ if_name);
+ return -1;
+ }
+
+ if ((os_strlen(vlan_if_name) + 1) > IFNAMSIZ) {
+ wpa_printf(MSG_ERROR, "VLAN: Interface name too long: '%s'",
+ vlan_if_name);
+ return -1;
+ }
+
+ handle = nl_socket_alloc();
+ if (!handle) {
+ wpa_printf(MSG_ERROR, "VLAN: failed to open netlink socket");
+ goto vlan_add_error;
+ }
+
+ if (nl_connect(handle, NETLINK_ROUTE) < 0) {
+ wpa_printf(MSG_ERROR, "VLAN: failed to connect to netlink");
+ goto vlan_add_error;
+ }
+
+ if (rtnl_link_alloc_cache(handle, AF_UNSPEC, &cache) < 0) {
+ cache = NULL;
+ wpa_printf(MSG_ERROR, "VLAN: failed to alloc cache");
+ goto vlan_add_error;
+ }
+
+ if (!(if_idx = rtnl_link_name2i(cache, if_name))) {
+ /* link does not exist */
+ wpa_printf(MSG_ERROR, "VLAN: interface %s does not exist",
+ if_name);
+ goto vlan_add_error;
+ }
+
+ if ((rlink = rtnl_link_get_by_name(cache, vlan_if_name))) {
+ /* link does exist */
+ rtnl_link_put(rlink);
+ rlink = NULL;
+ wpa_printf(MSG_ERROR, "VLAN: interface %s already exists",
+ vlan_if_name);
+ ret = 1;
+ goto vlan_add_error;
+ }
+
+ rlink = rtnl_link_alloc();
+ if (!rlink) {
+ wpa_printf(MSG_ERROR, "VLAN: failed to allocate new link");
+ goto vlan_add_error;
+ }
+
+ if (rtnl_link_set_type(rlink, "vlan") < 0) {
+ wpa_printf(MSG_ERROR, "VLAN: failed to set link type");
+ goto vlan_add_error;
+ }
+
+ rtnl_link_set_link(rlink, if_idx);
+ rtnl_link_set_name(rlink, vlan_if_name);
+
+ if (rtnl_link_vlan_set_id(rlink, vid) < 0) {
+ wpa_printf(MSG_ERROR, "VLAN: failed to set link vlan id");
+ goto vlan_add_error;
+ }
+
+ if (rtnl_link_add(handle, rlink, NLM_F_CREATE) < 0) {
+ wpa_printf(MSG_ERROR, "VLAN: failed to create link %s for "
+ "vlan %d on %s (%d)",
+ vlan_if_name, vid, if_name, if_idx);
+ goto vlan_add_error;
+ }
+
+ ret = 0;
+
+vlan_add_error:
+ if (rlink)
+ rtnl_link_put(rlink);
+ if (cache)
+ nl_cache_free(cache);
+ if (handle)
+ nl_socket_free(handle);
+ return ret;
+}
+
+
+int vlan_rem(const char *if_name)
+{
+ int ret = -1;
+ struct nl_sock *handle = NULL;
+ struct nl_cache *cache = NULL;
+ struct rtnl_link *rlink = NULL;
+
+ wpa_printf(MSG_DEBUG, "VLAN: vlan_rem(if_name=%s)", if_name);
+
+ handle = nl_socket_alloc();
+ if (!handle) {
+ wpa_printf(MSG_ERROR, "VLAN: failed to open netlink socket");
+ goto vlan_rem_error;
+ }
+
+ if (nl_connect(handle, NETLINK_ROUTE) < 0) {
+ wpa_printf(MSG_ERROR, "VLAN: failed to connect to netlink");
+ goto vlan_rem_error;
+ }
+
+ if (rtnl_link_alloc_cache(handle, AF_UNSPEC, &cache) < 0) {
+ cache = NULL;
+ wpa_printf(MSG_ERROR, "VLAN: failed to alloc cache");
+ goto vlan_rem_error;
+ }
+
+ if (!(rlink = rtnl_link_get_by_name(cache, if_name))) {
+ /* link does not exist */
+ wpa_printf(MSG_ERROR, "VLAN: interface %s does not exists",
+ if_name);
+ goto vlan_rem_error;
+ }
+
+ if (rtnl_link_delete(handle, rlink) < 0) {
+ wpa_printf(MSG_ERROR, "VLAN: failed to remove link %s",
+ if_name);
+ goto vlan_rem_error;
+ }
+
+ ret = 0;
+
+vlan_rem_error:
+ if (rlink)
+ rtnl_link_put(rlink);
+ if (cache)
+ nl_cache_free(cache);
+ if (handle)
+ nl_socket_free(handle);
+ return ret;
+}