Updated to hostap_2_6

[mech_eap.git] / libeap / src / ap / vlan_ifconfig.c

diff --git a/libeap/src/ap/vlan_ifconfig.c b/libeap/src/ap/vlan_ifconfig.c
new file mode 100644 (file)
index 0000000..ef953a5
--- /dev/null
+++ b/libeap/src/ap/vlan_ifconfig.c
@@ -0,0 +1,69 @@
+/*
+ * hostapd / VLAN ifconfig helpers
+ * Copyright 2003, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+#include <net/if.h>
+#include <sys/ioctl.h>
+
+#include "utils/common.h"
+#include "vlan_util.h"
+
+
+int ifconfig_helper(const char *if_name, int up)
+{
+       int fd;
+       struct ifreq ifr;
+
+       if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+               wpa_printf(MSG_ERROR, "VLAN: %s: socket(AF_INET,SOCK_STREAM) "
+                          "failed: %s", __func__, strerror(errno));
+               return -1;
+       }
+
+       os_memset(&ifr, 0, sizeof(ifr));
+       os_strlcpy(ifr.ifr_name, if_name, IFNAMSIZ);
+
+       if (ioctl(fd, SIOCGIFFLAGS, &ifr) != 0) {
+               wpa_printf(MSG_ERROR, "VLAN: %s: ioctl(SIOCGIFFLAGS) failed "
+                          "for interface %s: %s",
+                          __func__, if_name, strerror(errno));
+               close(fd);
+               return -1;
+       }
+
+       if (up)
+               ifr.ifr_flags |= IFF_UP;
+       else
+               ifr.ifr_flags &= ~IFF_UP;
+
+       if (ioctl(fd, SIOCSIFFLAGS, &ifr) != 0) {
+               wpa_printf(MSG_ERROR, "VLAN: %s: ioctl(SIOCSIFFLAGS) failed "
+                          "for interface %s (up=%d): %s",
+                          __func__, if_name, up, strerror(errno));
+               close(fd);
+               return -1;
+       }
+
+       close(fd);
+       return 0;
+}
+
+
+int ifconfig_up(const char *if_name)
+{
+       wpa_printf(MSG_DEBUG, "VLAN: Set interface %s up", if_name);
+       return ifconfig_helper(if_name, 1);
+}
+
+
+int iface_exists(const char *ifname)
+{
+       return if_nametoindex(ifname);
+}