diff options
Diffstat (limited to 'src/drivers/linux_ioctl.c')
| -rw-r--r-- | src/drivers/linux_ioctl.c | 44 |
1 files changed, 32 insertions, 12 deletions
diff --git a/src/drivers/linux_ioctl.c b/src/drivers/linux_ioctl.c index 0d6cf5416beec..4380428f979c7 100644 --- a/src/drivers/linux_ioctl.c +++ b/src/drivers/linux_ioctl.c @@ -2,14 +2,8 @@ * 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. + * This software may be distributed under the terms of the BSD license. + * See README for more details. */ #include "utils/includes.h" @@ -24,6 +18,7 @@ int linux_set_iface_flags(int sock, const char *ifname, int dev_up) { struct ifreq ifr; + int ret; if (sock < 0) return -1; @@ -32,9 +27,10 @@ int linux_set_iface_flags(int sock, const char *ifname, int dev_up) os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ); if (ioctl(sock, SIOCGIFFLAGS, &ifr) != 0) { + ret = errno ? -errno : -999; wpa_printf(MSG_ERROR, "Could not read interface %s flags: %s", ifname, strerror(errno)); - return -1; + return ret; } if (dev_up) { @@ -48,15 +44,39 @@ int linux_set_iface_flags(int sock, const char *ifname, int dev_up) } if (ioctl(sock, SIOCSIFFLAGS, &ifr) != 0) { - wpa_printf(MSG_ERROR, "Could not set interface %s flags: %s", - ifname, strerror(errno)); - return -1; + ret = errno ? -errno : -999; + wpa_printf(MSG_ERROR, "Could not set interface %s flags (%s): " + "%s", + ifname, dev_up ? "UP" : "DOWN", strerror(errno)); + return ret; } return 0; } +int linux_iface_up(int sock, const char *ifname) +{ + struct ifreq ifr; + int ret; + + if (sock < 0) + return -1; + + os_memset(&ifr, 0, sizeof(ifr)); + os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ); + + if (ioctl(sock, SIOCGIFFLAGS, &ifr) != 0) { + ret = errno ? -errno : -999; + wpa_printf(MSG_ERROR, "Could not read interface %s flags: %s", + ifname, strerror(errno)); + return ret; + } + + return !!(ifr.ifr_flags & IFF_UP); +} + + int linux_get_ifhwaddr(int sock, const char *ifname, u8 *addr) { struct ifreq ifr; |