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Fix hostapd SIGHUP processing before interface is enabled

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It was possible to try to do driver operations before the driver
interface had been initialized when processing a SIGHUP signal. This
would result in NULL pointer dereference. Fix this by skipping the steps
when SIGHUP is issued before the interface is enabled.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2016-12-27 00:55:32 +02:00
parent 8f49787897
commit 1dfd25a68a
1 changed files with 4 additions and 1 deletions
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5
src/ap/hostapd.c
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@ -75,6 +75,9 @@ static void hostapd_reload_bss(struct hostapd_data *hapd)
{ {
struct hostapd_ssid *ssid; struct hostapd_ssid *ssid;
if (!hapd->started)
return;
#ifndef CONFIG_NO_RADIUS #ifndef CONFIG_NO_RADIUS
radius_client_reconfig(hapd->radius, hapd->conf->radius); radius_client_reconfig(hapd->radius, hapd->conf->radius);
#endif /* CONFIG_NO_RADIUS */ #endif /* CONFIG_NO_RADIUS */
@ -210,7 +213,7 @@ static void hostapd_broadcast_key_clear_iface(struct hostapd_data *hapd,
{ {
int i; int i;
if (!ifname) if (!ifname || !hapd->drv_priv)
return; return;
for (i = 0; i < NUM_WEP_KEYS; i++) { for (i = 0; i < NUM_WEP_KEYS; i++) {
if (hostapd_drv_set_key(ifname, hapd, WPA_ALG_NONE, NULL, i, if (hostapd_drv_set_key(ifname, hapd, WPA_ALG_NONE, NULL, i,