hostapd: enable dynamic modification of acl policy

add APIs for dynamically changing the macaddr_acl
policy and mac addresses lists.
once changed, hostapd will deauth stations which
do not pass the new policy.

Signed-off-by: Nadim Zubidat <nadimz@ti.com>

3 files changed, 46 insertions, 2 deletions

diff --git a/hostapd/config_file.c b/hostapd/config_file.c
index 59745fa..41dd242 100644
--- a/hostapd/config_file.c
+++ b/hostapd/config_file.c
@@ -116,8 +116,8 @@ static int hostapd_acl_comp(const void *a, const void *b)
 }
 
 
-static int hostapd_config_read_maclist(const char *fname,
-				       struct mac_acl_entry **acl, int *num)
+int hostapd_config_read_maclist(const char *fname,
+				struct mac_acl_entry **acl, int *num)
 {
 	FILE *f;
 	char buf[128], *pos;
diff --git a/hostapd/config_file.h b/hostapd/config_file.h
index fba57b8..61759f3 100644
--- a/hostapd/config_file.h
+++ b/hostapd/config_file.h
@@ -13,5 +13,7 @@ struct hostapd_config * hostapd_config_read(const char *fname);
 int hostapd_set_iface(struct hostapd_config *conf,
 		      struct hostapd_bss_config *bss, char *field,
 		      char *value);
+int hostapd_config_read_maclist(const char *fname,
+				struct mac_acl_entry **acl, int *num);
 
 #endif /* CONFIG_FILE_H */
diff --git a/hostapd/ctrl_iface.c b/hostapd/ctrl_iface.c
index 8f42f90..e6a8ced 100644
--- a/hostapd/ctrl_iface.c
+++ b/hostapd/ctrl_iface.c
@@ -514,6 +514,42 @@ static int hostapd_ctrl_iface_ess_disassoc(struct hostapd_data *hapd,
 }
 
 
+static int hostapd_ctrl_iface_set_accept_mac(struct hostapd_data *hapd,
+					     char *fname)
+{
+	hapd->conf->num_accept_mac = 0;
+
+	if (hostapd_config_read_maclist(fname, &hapd->conf->accept_mac,
+					&hapd->conf->num_accept_mac)) {
+		wpa_printf(MSG_ERROR, "Reading mac list from file failed");
+		return -1;
+	}
+
+	/* Accept mac list changed, check if need to deauth stations*/
+	hostapd_macaddr_acl_accept_sta(hapd);
+
+	return 0;
+}
+
+
+static int hostapd_ctrl_iface_set_deny_mac(struct hostapd_data *hapd,
+					   char *fname)
+{
+	hapd->conf->num_deny_mac = 0;
+
+	if (hostapd_config_read_maclist(fname, &hapd->conf->deny_mac,
+					&hapd->conf->num_deny_mac)) {
+		wpa_printf(MSG_ERROR, "Reading mac list from file failed");
+		return -1;
+	}
+
+	/* Deny mac list changed, check if need to deauth stations*/
+	hostapd_macaddr_acl_deny_sta(hapd);
+
+	return 0;
+}
+
+
 static int hostapd_ctrl_iface_get_config(struct hostapd_data *hapd,
 					 char *buf, size_t buflen)
 {
@@ -723,6 +759,12 @@ static int hostapd_ctrl_iface_set(struct hostapd_data *hapd, char *cmd)
 		else
 			hapd->gas_frag_limit = val;
 #endif /* CONFIG_INTERWORKING */
+	} else if (os_strcasecmp(cmd, "macaddr_acl") == 0) {
+		ret = hostapd_macaddr_acl_command(hapd, value);
+	} else if (os_strcasecmp(cmd, "accept_mac_file") == 0) {
+		ret = hostapd_ctrl_iface_set_accept_mac(hapd, value);
+	} else if (os_strcasecmp(cmd, "deny_mac_file") == 0) {
+		ret = hostapd_ctrl_iface_set_deny_mac(hapd, value);
 	} else {
 		ret = hostapd_set_iface(hapd->iconf, hapd->conf, cmd, value);
 	}