WPS 2.0: Fix AuthorizedMACs check to accept wildcard address

We need to accept both our own address and the ff:ff:ff:ff:ff:ff
as an indication of the AP having authorized us.

diff --git a/src/wps/wps.c b/src/wps/wps.c
index 99a73ba..01a2cde 100644 (file)
--- a/src/wps/wps.c
+++ b/src/wps/wps.c
@@ -269,6 +269,7 @@ int wps_is_addr_authorized(const struct wpabuf *msg, const u8 *addr,
        struct wps_parse_attr attr;
        unsigned int i;
        const u8 *pos;
+       const u8 bcast[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 
        if (wps_parse_msg(msg, &attr) < 0)
                return 0;
@@ -286,7 +287,8 @@ int wps_is_addr_authorized(const struct wpabuf *msg, const u8 *addr,
 
        pos = attr.authorized_macs;
        for (i = 0; i < attr.authorized_macs_len / ETH_ALEN; i++) {
-               if (os_memcmp(pos, addr, ETH_ALEN) == 0)
+               if (os_memcmp(pos, addr, ETH_ALEN) == 0 ||
+                   os_memcmp(pos, bcast, ETH_ALEN) == 0)
                        return 1;
                pos += ETH_ALEN;
        }