[PATCH v2 14/22] hostapd: add INTERFACES ctrl command

[Janusz Dziedzic]

Print available interfaces with ctrl_iface.
This is useful in case we using UDP CTRL and add
interface using ADD command. After that we need to
know which udp port we should use for this new
added interface.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic at tieto.com>
---
 hostapd/ctrl_iface.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/hostapd/ctrl_iface.c b/hostapd/ctrl_iface.c
index 5ba01c3..d24e075 100644
--- a/hostapd/ctrl_iface.c
+++ b/hostapd/ctrl_iface.c
@@ -2852,6 +2852,33 @@ error_return:
 
 
 static int
+hostapd_global_ctrl_iface_interfaces(struct hapd_interfaces *interfaces,
+				     char *reply, int reply_size)
+{
+	int i, res;
+	char *pos, *end;
+	struct hostapd_iface *iface;
+
+	pos = reply;
+	end = reply + reply_size;
+
+	for (i = 0; i < interfaces->count; i++) {
+		iface = interfaces->iface[i];
+
+		res = os_snprintf(pos, end - pos, "%s ctrl_iface=%s\n",
+				  iface->conf->bss[0]->iface,
+				  iface->conf->bss[0]->ctrl_interface);
+		if (os_snprintf_error(end - pos, res)) {
+			*pos = '\0';
+			break;
+		}
+		pos += res;
+	}
+
+	return pos - reply;
+}
+
+static int
 hostapd_global_ctrl_iface_dup_network(struct hapd_interfaces *interfaces,
 				      char *cmd)
 {
@@ -3053,6 +3080,10 @@ static void hostapd_global_ctrl_iface_receive(int sock, void *eloop_ctx,
 			reply_len = os_snprintf(reply, reply_size, "OK\n");
 		else
 			reply_len = -1;
+	} else if (os_strncmp(buf, "INTERFACES", 10) == 0) {
+		reply_len = hostapd_global_ctrl_iface_interfaces(interfaces,
+								 reply,
+								 sizeof(buffer));
 	} else {
 		wpa_printf(MSG_DEBUG, "Unrecognized global ctrl_iface command "
 			   "ignored");
-- 
1.9.1