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-rw-r--r--hostapd/config_file.c2
-rw-r--r--hostapd/hostapd.conf4
-rw-r--r--src/ap/ap_config.h3
-rw-r--r--src/ap/hostapd.c24
4 files changed, 26 insertions, 7 deletions
diff --git a/hostapd/config_file.c b/hostapd/config_file.c
index a157a74..6f525d9 100644
--- a/hostapd/config_file.c
+++ b/hostapd/config_file.c
@@ -2826,6 +2826,8 @@ static int hostapd_config_fill(struct hostapd_config *conf,
line);
return 1;
}
+ } else if (os_strcmp(buf, "use_driver_iface_addr") == 0) {
+ conf->use_driver_iface_addr = atoi(pos);
#ifdef CONFIG_IEEE80211W
} else if (os_strcmp(buf, "ieee80211w") == 0) {
bss->ieee80211w = atoi(pos);
diff --git a/hostapd/hostapd.conf b/hostapd/hostapd.conf
index 3d5c5e2..d943a43 100644
--- a/hostapd/hostapd.conf
+++ b/hostapd/hostapd.conf
@@ -1926,6 +1926,10 @@ own_ip_addr=127.0.0.1
# - is not the same as the MAC address of the radio
# - is not the same as any other explicitly specified BSSID
#
+# Alternatively, the 'use_driver_iface_addr' parameter can be used to request
+# hostapd to use the driver auto-generated interface address (e.g., to use the
+# exact MAC addresses allocated to the device).
+#
# Not all drivers support multiple BSSes. The exact mechanism for determining
# the driver capabilities is driver specific. With the current (i.e., a recent
# kernel) drivers using nl80211, this information can be checked with "iw list"
diff --git a/src/ap/ap_config.h b/src/ap/ap_config.h
index f19cac6..2d07c67 100644
--- a/src/ap/ap_config.h
+++ b/src/ap/ap_config.h
@@ -665,6 +665,9 @@ struct hostapd_config {
u8 vht_oper_centr_freq_seg0_idx;
u8 vht_oper_centr_freq_seg1_idx;
+ /* Use driver-generated interface addresses when adding multiple BSSs */
+ u8 use_driver_iface_addr;
+
#ifdef CONFIG_FST
struct fst_iface_cfg fst_cfg;
#endif /* CONFIG_FST */
diff --git a/src/ap/hostapd.c b/src/ap/hostapd.c
index 9aaa9a6..55ca9e8 100644
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -512,6 +512,9 @@ static int hostapd_validate_bssid_configuration(struct hostapd_iface *iface)
if (hostapd_drv_none(hapd))
return 0;
+ if (iface->conf->use_driver_iface_addr)
+ return 0;
+
/* Generate BSSID mask that is large enough to cover the BSSIDs. */
/* Determine the bits necessary to cover the number of BSSIDs. */
@@ -905,12 +908,9 @@ static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
hapd->started = 1;
if (!first || first == -1) {
- if (is_zero_ether_addr(conf->bssid)) {
- /* Allocate the next available BSSID. */
- do {
- inc_byte_array(hapd->own_addr, ETH_ALEN);
- } while (mac_in_conf(hapd->iconf, hapd->own_addr));
- } else {
+ u8 *addr = hapd->own_addr;
+
+ if (!is_zero_ether_addr(conf->bssid)) {
/* Allocate the configured BSSID. */
os_memcpy(hapd->own_addr, conf->bssid, ETH_ALEN);
@@ -922,11 +922,18 @@ static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
"the radio", conf->iface);
return -1;
}
+ } else if (hapd->iconf->use_driver_iface_addr) {
+ addr = NULL;
+ } else {
+ /* Allocate the next available BSSID. */
+ do {
+ inc_byte_array(hapd->own_addr, ETH_ALEN);
+ } while (mac_in_conf(hapd->iconf, hapd->own_addr));
}
hapd->interface_added = 1;
if (hostapd_if_add(hapd->iface->bss[0], WPA_IF_AP_BSS,
- conf->iface, hapd->own_addr, hapd,
+ conf->iface, addr, hapd,
&hapd->drv_priv, force_ifname, if_addr,
conf->bridge[0] ? conf->bridge : NULL,
first == -1)) {
@@ -935,6 +942,9 @@ static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
hapd->interface_added = 0;
return -1;
}
+
+ if (!addr)
+ os_memcpy(hapd->own_addr, if_addr, ETH_ALEN);
}
if (conf->wmm_enabled < 0)