Interworking: Add more debug info on roaming partner preferences

This can be useful in debugging selection of roaming partner preference.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>

diff --git a/wpa_supplicant/interworking.c b/wpa_supplicant/interworking.c
index 345f11666ecf5ddc4a172f5a85ab0239e1f1e6d0..b5d1b7111fc25b3447dfc0e33b2fe9395f64766c 100644 (file)
--- a/wpa_supplicant/interworking.c
+++ b/wpa_supplicant/interworking.c
@@ -2129,6 +2129,12 @@ static int roaming_partner_match(struct wpa_supplicant *wpa_s,
                                 struct roaming_partner *partner,
                                 struct wpabuf *domain_names)
 {
+       wpa_printf(MSG_DEBUG, "Interworking: Comparing roaming_partner info fqdn='%s' exact_match=%d priority=%u country='%s'",
+                  partner->fqdn, partner->exact_match, partner->priority,
+                  partner->country);
+       wpa_hexdump_ascii(MSG_DEBUG, "Interworking: Domain names",
+                         wpabuf_head(domain_names),
+                         wpabuf_len(domain_names));
        if (!domain_name_list_contains(domain_names, partner->fqdn,
                                       partner->exact_match))
                return 0;
@@ -2142,18 +2148,27 @@ static u8 roaming_prio(struct wpa_supplicant *wpa_s, struct wpa_cred *cred,
 {
        size_t i;
 
-       if (bss->anqp == NULL || bss->anqp->domain_name == NULL)
+       if (bss->anqp == NULL || bss->anqp->domain_name == NULL) {
+               wpa_printf(MSG_DEBUG, "Interworking: No ANQP domain name info -> use default roaming partner priority 128");
                return 128; /* cannot check preference with domain name */
+       }
 
        if (interworking_home_sp_cred(wpa_s, cred, bss->anqp->domain_name) > 0)
+       {
+               wpa_printf(MSG_DEBUG, "Interworking: Determined to be home SP -> use maximum preference 0 as roaming partner priority");
                return 0; /* max preference for home SP network */
+       }
 
        for (i = 0; i < cred->num_roaming_partner; i++) {
                if (roaming_partner_match(wpa_s, &cred->roaming_partner[i],
-                                         bss->anqp->domain_name))
+                                         bss->anqp->domain_name)) {
+                       wpa_printf(MSG_DEBUG, "Interworking: Roaming partner preference match - priority %u",
+                                  cred->roaming_partner[i].priority);
                        return cred->roaming_partner[i].priority;
+               }
        }
 
+       wpa_printf(MSG_DEBUG, "Interworking: No roaming partner preference match - use default roaming partner priority 128");
        return 128;
 }