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--- a/src/ap/ap_config.h
+++ b/src/ap/ap_config.h
@@ -310,6 +310,7 @@ struct hostapd_bss_config {
unsigned int eap_sim_db_timeout;
int eap_server_erp; /* Whether ERP is enabled on internal EAP server */
struct hostapd_ip_addr own_ip_addr;
+ int dynamic_own_ip_addr;
char *nas_identifier;
struct hostapd_radius_servers *radius;
int acct_interim_interval;
--- a/src/radius/radius_client.c
+++ b/src/radius/radius_client.c
@@ -163,6 +163,8 @@ struct radius_client_data {
*/
void *ctx;
+ struct hostapd_ip_addr local_ip;
+
/**
* conf - RADIUS client configuration (list of RADIUS servers to use)
*/
@@ -720,6 +722,30 @@ static void radius_client_list_add(struc
/**
+ * radius_client_send - Get local address for the RADIUS auth socket
+ * @radius: RADIUS client context from radius_client_init()
+ * @addr: pointer to store the address
+ *
+ * This function returns the local address for the connection to the RADIUS
+ * auth server. It also opens the socket if it's not available yet.
+ */
+int radius_client_get_local_addr(struct radius_client_data *radius,
+ struct hostapd_ip_addr *addr)
+{
+ struct hostapd_radius_servers *conf = radius->conf;
+
+ if (conf->auth_server && radius->auth_sock < 0)
+ radius_client_init_auth(radius);
+
+ if (radius->auth_sock < 0)
+ return -1;
+
+ memcpy(addr, &radius->local_ip, sizeof(*addr));
+
+ return 0;
+}
+
+/**
* radius_client_send - Send a RADIUS request
* @radius: RADIUS client context from radius_client_init()
* @msg: RADIUS message to be sent
@@ -1238,6 +1264,10 @@ radius_change_server(struct radius_clien
wpa_printf(MSG_DEBUG, "RADIUS local address: %s:%u",
inet_ntoa(claddr.sin_addr),
ntohs(claddr.sin_port));
+ if (auth) {
+ radius->local_ip.af = AF_INET;
+ radius->local_ip.u.v4 = claddr.sin_addr;
+ }
}
break;
#ifdef CONFIG_IPV6
@@ -1249,6 +1279,10 @@ radius_change_server(struct radius_clien
inet_ntop(AF_INET6, &claddr6.sin6_addr,
abuf, sizeof(abuf)),
ntohs(claddr6.sin6_port));
+ if (auth) {
+ radius->local_ip.af = AF_INET6;
+ radius->local_ip.u.v6 = claddr6.sin6_addr;
+ }
}
break;
}
--- a/src/radius/radius_client.h
+++ b/src/radius/radius_client.h
@@ -249,6 +249,8 @@ int radius_client_register(struct radius
void radius_client_set_interim_error_cb(struct radius_client_data *radius,
void (*cb)(const u8 *addr, void *ctx),
void *ctx);
+int radius_client_get_local_addr(struct radius_client_data *radius,
+ struct hostapd_ip_addr * addr);
int radius_client_send(struct radius_client_data *radius,
struct radius_msg *msg,
RadiusType msg_type, const u8 *addr);
--- a/src/ap/ieee802_1x.c
+++ b/src/ap/ieee802_1x.c
@@ -598,6 +598,10 @@ int add_common_radius_attr(struct hostap
struct hostapd_radius_attr *attr;
int len;
+ if (hapd->conf->dynamic_own_ip_addr)
+ radius_client_get_local_addr(hapd->radius,
+ &hapd->conf->own_ip_addr);
+
if (!hostapd_config_get_radius_attr(req_attr,
RADIUS_ATTR_NAS_IP_ADDRESS) &&
hapd->conf->own_ip_addr.af == AF_INET &&
--- a/hostapd/config_file.c
+++ b/hostapd/config_file.c
@@ -2690,6 +2690,8 @@ static int hostapd_config_fill(struct ho
} else if (os_strcmp(buf, "iapp_interface") == 0) {
wpa_printf(MSG_INFO, "DEPRECATED: iapp_interface not used");
#endif /* CONFIG_IAPP */
+ } else if (os_strcmp(buf, "dynamic_own_ip_addr") == 0) {
+ bss->dynamic_own_ip_addr = atoi(pos);
} else if (os_strcmp(buf, "own_ip_addr") == 0) {
if (hostapd_parse_ip_addr(pos, &bss->own_ip_addr)) {
wpa_printf(MSG_ERROR,
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