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nl80211: Add helper functions for SIOC{G,S}IFHWADDR

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This commit is contained in:
Jouni Malinen 2009-04-17 11:22:16 +03:00 committed by Jouni Malinen
parent b8c4d6df5f
commit 41d931ee37
1 changed files with 53 additions and 42 deletions
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89
src/drivers/driver_nl80211.c
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@ -291,6 +291,52 @@ nla_put_failure:
}
#ifdef HOSTAPD
static int get_ifhwaddr(struct wpa_driver_nl80211_data *drv,
const char *ifname, u8 *addr)
{
struct ifreq ifr;
os_memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr)) {
wpa_printf(MSG_ERROR, "%s: ioctl(SIOCGIFHWADDR): %d (%s)",
ifname, errno, 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;
}
static int set_ifhwaddr(struct wpa_driver_nl80211_data *drv,
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(drv->ioctl_sock, SIOCSIFHWADDR, &ifr)) {
wpa_printf(MSG_DEBUG, "%s: ioctl(SIOCSIFHWADDR): %d (%s)",
ifname, errno, strerror(errno));
return -1;
}
return 0;
}
#endif /* HOSTAPD */
static int wpa_driver_nl80211_send_oper_ifla(
struct wpa_driver_nl80211_data *drv,
int linkmode, int operstate)
@ -2316,9 +2362,6 @@ static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
struct nl_msg *msg, *flags = NULL;
int ifidx;
int ret = -ENOBUFS;
#ifdef HOSTAPD
struct ifreq ifreq;
#endif /* HOSTAPD */
msg = nlmsg_alloc();
if (!msg)
@ -2364,23 +2407,11 @@ static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
/* start listening for EAPOL on this interface */
add_ifidx(drv, ifidx);
if (addr) {
switch (iftype) {
case NL80211_IFTYPE_AP:
os_strlcpy(ifreq.ifr_name, ifname, IFNAMSIZ);
memcpy(ifreq.ifr_hwaddr.sa_data, addr, ETH_ALEN);
ifreq.ifr_hwaddr.sa_family = ARPHRD_ETHER;
if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifreq)) {
if (addr && iftype == NL80211_IFTYPE_AP &&
set_ifhwaddr(drv, ifname, addr)) {
nl80211_remove_iface(drv, ifidx);
return -1;
}
break;
default:
/* nothing */
break;
}
}
#endif /* HOSTAPD */
return ifidx;
@ -3908,7 +3939,6 @@ static void *i802_init(struct hostapd_data *hapd,
{
struct wpa_driver_nl80211_data *drv;
size_t i;
struct ifreq ifr;
drv = wpa_driver_nl80211_init(hapd, params->ifname);
if (drv == NULL)
@ -3930,16 +3960,8 @@ static void *i802_init(struct hostapd_data *hapd,
if (hostapd_set_iface_flags(drv, drv->ifname, 0))
goto failed;
if (params->bssid) {
os_strlcpy(ifr.ifr_name, drv->ifname, IFNAMSIZ);
os_memcpy(ifr.ifr_hwaddr.sa_data, params->bssid, ETH_ALEN);
ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifr)) {
perror("ioctl(SIOCSIFHWADDR)");
if (params->bssid && set_ifhwaddr(drv, drv->ifname, params->bssid))
goto failed;
}
}
/* Initialise a monitor interface */
if (nl80211_create_monitor_interface(drv))
@ -3966,19 +3988,8 @@ static void *i802_init(struct hostapd_data *hapd,
goto failed;
}
os_memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr) != 0) {
perror("ioctl(SIOCGIFHWADDR)");
if (get_ifhwaddr(drv, drv->ifname, drv->hapd->own_addr))
goto failed;
}
if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
printf("Invalid HW-addr family 0x%04x\n",
ifr.ifr_hwaddr.sa_family);
goto failed;
}
os_memcpy(drv->hapd->own_addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
return drv;