[openwrt/openwrt] hostapd: add STA extended capabilities to get_clients

[LEDE Commits]

blocktrron pushed a commit to openwrt/openwrt.git, branch openwrt-21.02:
https://git.openwrt.org/180b750c02dd9dd066cf67ee7c3480eb0ec36b70

commit 180b750c02dd9dd066cf67ee7c3480eb0ec36b70
Author: David Bauer <mail at david-bauer.net>
AuthorDate: Wed Feb 16 23:09:51 2022 +0100

    hostapd: add STA extended capabilities to get_clients
    
    Add the STAs extended capabilities to the ubus STA information. This
    way, external daemons can be made aware of a STAs capabilities.
    
    This field is of an array type and contains 0 or more bytes of a STAs
    advertised extended capabilities.
    
    Signed-off-by: David Bauer <mail at david-bauer.net>
    (cherry picked from commit 6f787239771044ed7eeaf22301c543b699f25cb4)
---
 package/network/services/hostapd/src/src/ap/ubus.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/package/network/services/hostapd/src/src/ap/ubus.c b/package/network/services/hostapd/src/src/ap/ubus.c
index 29a4af8ebd..6edafa538d 100644
--- a/package/network/services/hostapd/src/src/ap/ubus.c
+++ b/package/network/services/hostapd/src/src/ap/ubus.c
@@ -318,6 +318,16 @@ hostapd_bss_get_clients(struct ubus_context *ctx, struct ubus_object *obj,
 		for (i = 0; i < ARRAY_SIZE(sta->rrm_enabled_capa); i++)
 			blobmsg_add_u32(&b, "", sta->rrm_enabled_capa[i]);
 		blobmsg_close_array(&b, r);
+
+		r = blobmsg_open_array(&b, "extended_capabilities");
+		/* Check if client advertises extended capabilities */
+		if (sta->ext_capability && sta->ext_capability[0] > 0) {
+			for (i = 0; i < sta->ext_capability[0]; i++) {
+				blobmsg_add_u32(&b, "", sta->ext_capability[1 + i]);
+			}
+		}
+		blobmsg_close_array(&b, r);
+
 		blobmsg_add_u32(&b, "aid", sta->aid);
 #ifdef CONFIG_TAXONOMY
 		r = blobmsg_alloc_string_buffer(&b, "signature", 1024);