wpa_supplicant: Initial Revision 0.8.X
Based on:
commit 0725cc7b7efc434910e89865c42eda7ce61bbf08
Author: Jouni Malinen <j@w1.fi>
Date: Thu Apr 21 20:41:01 2011 +0300
Enable CONFIG_DRIVER_NL80211=y in the default configuration
nl80211 should be preferred over WEXT with any recent Linux
kernel version.
Change-Id: I26aec5afbbd4f4a1f5fd900912545b6f5050de64
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/drivers/linux_ioctl.c b/src/drivers/linux_ioctl.c
new file mode 100644
index 0000000..0d6cf54
--- /dev/null
+++ b/src/drivers/linux_ioctl.c
@@ -0,0 +1,198 @@
+/*
+ * Linux ioctl helper functions for driver wrappers
+ * Copyright (c) 2002-2010, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "utils/includes.h"
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+
+#include "utils/common.h"
+#include "linux_ioctl.h"
+
+
+int linux_set_iface_flags(int sock, const char *ifname, int dev_up)
+{
+ struct ifreq ifr;
+
+ if (sock < 0)
+ return -1;
+
+ os_memset(&ifr, 0, sizeof(ifr));
+ os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+
+ if (ioctl(sock, SIOCGIFFLAGS, &ifr) != 0) {
+ wpa_printf(MSG_ERROR, "Could not read interface %s flags: %s",
+ ifname, strerror(errno));
+ return -1;
+ }
+
+ if (dev_up) {
+ if (ifr.ifr_flags & IFF_UP)
+ return 0;
+ ifr.ifr_flags |= IFF_UP;
+ } else {
+ if (!(ifr.ifr_flags & IFF_UP))
+ return 0;
+ ifr.ifr_flags &= ~IFF_UP;
+ }
+
+ if (ioctl(sock, SIOCSIFFLAGS, &ifr) != 0) {
+ wpa_printf(MSG_ERROR, "Could not set interface %s flags: %s",
+ ifname, strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
+
+
+int linux_get_ifhwaddr(int sock, const char *ifname, u8 *addr)
+{
+ struct ifreq ifr;
+
+ os_memset(&ifr, 0, sizeof(ifr));
+ os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ if (ioctl(sock, SIOCGIFHWADDR, &ifr)) {
+ wpa_printf(MSG_ERROR, "Could not get interface %s hwaddr: %s",
+ ifname, strerror(errno));
+ return -1;
+ }
+
+ if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
+ wpa_printf(MSG_ERROR, "%s: Invalid HW-addr family 0x%04x",
+ ifname, ifr.ifr_hwaddr.sa_family);
+ return -1;
+ }
+ os_memcpy(addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
+
+ return 0;
+}
+
+
+int linux_set_ifhwaddr(int sock, const char *ifname, const u8 *addr)
+{
+ struct ifreq ifr;
+
+ os_memset(&ifr, 0, sizeof(ifr));
+ os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ os_memcpy(ifr.ifr_hwaddr.sa_data, addr, ETH_ALEN);
+ ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
+
+ if (ioctl(sock, SIOCSIFHWADDR, &ifr)) {
+ wpa_printf(MSG_DEBUG, "Could not set interface %s hwaddr: %s",
+ ifname, strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
+
+
+#ifndef SIOCBRADDBR
+#define SIOCBRADDBR 0x89a0
+#endif
+#ifndef SIOCBRDELBR
+#define SIOCBRDELBR 0x89a1
+#endif
+#ifndef SIOCBRADDIF
+#define SIOCBRADDIF 0x89a2
+#endif
+#ifndef SIOCBRDELIF
+#define SIOCBRDELIF 0x89a3
+#endif
+
+
+int linux_br_add(int sock, const char *brname)
+{
+ if (ioctl(sock, SIOCBRADDBR, brname) < 0) {
+ wpa_printf(MSG_DEBUG, "Could not add bridge %s: %s",
+ brname, strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
+
+
+int linux_br_del(int sock, const char *brname)
+{
+ if (ioctl(sock, SIOCBRDELBR, brname) < 0) {
+ wpa_printf(MSG_DEBUG, "Could not remove bridge %s: %s",
+ brname, strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
+
+
+int linux_br_add_if(int sock, const char *brname, const char *ifname)
+{
+ struct ifreq ifr;
+ int ifindex;
+
+ ifindex = if_nametoindex(ifname);
+ if (ifindex == 0)
+ return -1;
+
+ os_memset(&ifr, 0, sizeof(ifr));
+ os_strlcpy(ifr.ifr_name, brname, IFNAMSIZ);
+ ifr.ifr_ifindex = ifindex;
+ if (ioctl(sock, SIOCBRADDIF, &ifr) < 0) {
+ wpa_printf(MSG_DEBUG, "Could not add interface %s into bridge "
+ "%s: %s", ifname, brname, strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
+
+
+int linux_br_del_if(int sock, const char *brname, const char *ifname)
+{
+ struct ifreq ifr;
+ int ifindex;
+
+ ifindex = if_nametoindex(ifname);
+ if (ifindex == 0)
+ return -1;
+
+ os_memset(&ifr, 0, sizeof(ifr));
+ os_strlcpy(ifr.ifr_name, brname, IFNAMSIZ);
+ ifr.ifr_ifindex = ifindex;
+ if (ioctl(sock, SIOCBRDELIF, &ifr) < 0) {
+ wpa_printf(MSG_DEBUG, "Could not remove interface %s from "
+ "bridge %s: %s", ifname, brname, strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
+
+
+int linux_br_get(char *brname, const char *ifname)
+{
+ char path[128], brlink[128], *pos;
+ os_snprintf(path, sizeof(path), "/sys/class/net/%s/brport/bridge",
+ ifname);
+ os_memset(brlink, 0, sizeof(brlink));
+ if (readlink(path, brlink, sizeof(brlink) - 1) < 0)
+ return -1;
+ pos = os_strrchr(brlink, '/');
+ if (pos == NULL)
+ return -1;
+ pos++;
+ os_strlcpy(brname, pos, IFNAMSIZ);
+ return 0;
+}