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hostapd: Allow the first BSS in a multi-BSS setup to be removed

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This moves the vif added check from core hostapd to the driver wrapper
(only driver_nl80211.c uses this) and reorders operations a bit to allow
the first BSS (vif) to be removed from a multi-BSS setup.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Kyeyoon Park 2013-10-30 16:34:32 -07:00 committed by Jouni Malinen
parent 834ee56f78
commit 390e489c0d
3 changed files with 18 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/ap/hostapd.c
View File

@ -257,8 +257,7 @@ static void hostapd_free_hapd_data(struct hostapd_data *hapd)
authsrv_deinit(hapd); authsrv_deinit(hapd);
if (hapd->interface_added && if (hostapd_if_remove(hapd, WPA_IF_AP_BSS, hapd->conf->iface)) {
hostapd_if_remove(hapd, WPA_IF_AP_BSS, hapd->conf->iface)) {
wpa_printf(MSG_WARNING, "Failed to remove BSS interface %s", wpa_printf(MSG_WARNING, "Failed to remove BSS interface %s",
hapd->conf->iface); hapd->conf->iface);
} }
@ -644,7 +643,6 @@ static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
} }
} }
hapd->interface_added = 1;
if (hostapd_if_add(hapd->iface->bss[0], WPA_IF_AP_BSS, if (hostapd_if_add(hapd->iface->bss[0], WPA_IF_AP_BSS,
hapd->conf->iface, hapd->own_addr, hapd, hapd->conf->iface, hapd->own_addr, hapd,
&hapd->drv_priv, force_ifname, if_addr, &hapd->drv_priv, force_ifname, if_addr,
@ -1128,13 +1126,13 @@ hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
void hostapd_interface_deinit(struct hostapd_iface *iface) void hostapd_interface_deinit(struct hostapd_iface *iface)
{ {
size_t j; int j;
if (iface == NULL) if (iface == NULL)
return; return;
hostapd_cleanup_iface_pre(iface); hostapd_cleanup_iface_pre(iface);
for (j = 0; j < iface->num_bss; j++) { for (j = iface->num_bss - 1; j >= 0; j--) {
struct hostapd_data *hapd = iface->bss[j]; struct hostapd_data *hapd = iface->bss[j];
hostapd_free_stas(hapd); hostapd_free_stas(hapd);
hostapd_flush_old_stations(hapd, WLAN_REASON_DEAUTH_LEAVING); hostapd_flush_old_stations(hapd, WLAN_REASON_DEAUTH_LEAVING);

1
src/ap/hostapd.h
View File

@ -99,7 +99,6 @@ struct hostapd_data {
struct hostapd_iface *iface; struct hostapd_iface *iface;
struct hostapd_config *iconf; struct hostapd_config *iconf;
struct hostapd_bss_config *conf; struct hostapd_bss_config *conf;
int interface_added; /* virtual interface added for this BSS */
u8 own_addr[ETH_ALEN]; u8 own_addr[ETH_ALEN];

16
src/drivers/driver_nl80211.c
View File

@ -218,6 +218,7 @@ struct i802_bss {
unsigned int added_bridge:1; unsigned int added_bridge:1;
unsigned int in_deinit:1; unsigned int in_deinit:1;
unsigned int wdev_id_set:1; unsigned int wdev_id_set:1;
unsigned int added_if:1;
u8 addr[ETH_ALEN]; u8 addr[ETH_ALEN];
@ -9383,6 +9384,7 @@ static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
new_bss->next = drv->first_bss->next; new_bss->next = drv->first_bss->next;
new_bss->freq = drv->first_bss->freq; new_bss->freq = drv->first_bss->freq;
new_bss->ctx = bss_ctx; new_bss->ctx = bss_ctx;
new_bss->added_if = 1;
drv->first_bss->next = new_bss; drv->first_bss->next = new_bss;
if (drv_priv) if (drv_priv)
*drv_priv = new_bss; *drv_priv = new_bss;
@ -9410,7 +9412,7 @@ static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d", wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
__func__, type, ifname, ifindex); __func__, type, ifname, ifindex);
if (ifindex > 0) if (ifindex > 0 && bss->added_if)
nl80211_remove_iface(drv, ifindex); nl80211_remove_iface(drv, ifindex);
#ifdef HOSTAPD #ifdef HOSTAPD
@ -9448,6 +9450,18 @@ static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
if (bss) if (bss)
wpa_printf(MSG_INFO, "nl80211: %s - could not find " wpa_printf(MSG_INFO, "nl80211: %s - could not find "
"BSS %p in the list", __func__, bss); "BSS %p in the list", __func__, bss);
} else {
nl80211_teardown_ap(bss);
wpa_driver_nl80211_del_beacon(drv);
nl80211_destroy_bss(bss);
i802_set_iface_flags(bss, 0);
if (drv->first_bss->next) {
drv->first_bss = drv->first_bss->next;
drv->ctx = drv->first_bss->ctx;
os_free(bss);
} else {
wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to");
}
} }
#endif /* HOSTAPD */ #endif /* HOSTAPD */