wpa_supplicant build fails with CONFIG_IBSS_RSN=y

[Jouni Malinen]

On Mon, Mar 21, 2016 at 11:55:29AM -0600, Ahmed Zaki wrote:
> With the current HEAD (d4944fa), I am getting a build error while
> building wpa_supplicant with the defconfig and CONFIG_IBSS_RSN=y:

> ../src/ap/pmksa_cache_auth.o: In function `pmksa_cache_to_eapol_data':
> /home/ahmed/linux-git/hostap/wpa_supplicant/../src/ap/pmksa_cache_auth.c:217:
> undefined reference to `ap_sta_set_vlan'

It looks like this was broken recently with the hostapd VLAN changes.
The following modification to comment out this call should fix the
wpa_supplicant build with CONFIG_IBSS_RSN=y but without CONFIG_AP=y:

diff --git a/src/ap/pmksa_cache_auth.c b/src/ap/pmksa_cache_auth.c
index b419348..d610e7e 100644
--- a/src/ap/pmksa_cache_auth.c
+++ b/src/ap/pmksa_cache_auth.c
@@ -181,8 +181,6 @@ void pmksa_cache_to_eapol_data(struct hostapd_data *hapd,
 			       struct rsn_pmksa_cache_entry *entry,
 			       struct eapol_state_machine *eapol)
 {
-	struct sta_info *sta;
-
 	if (entry == NULL || eapol == NULL)
 		return;
 
@@ -213,8 +211,9 @@ void pmksa_cache_to_eapol_data(struct hostapd_data *hapd,
 	}
 
 	eapol->eap_type_authsrv = entry->eap_type_authsrv;
-	sta = (struct sta_info *) eapol->sta;
-	ap_sta_set_vlan(hapd, sta, entry->vlan_desc);
+#ifndef CONFIG_NO_VLAN
+	ap_sta_set_vlan(hapd, eapol->sta, entry->vlan_desc);
+#endif /* CONFIG_NO_VLAN */
 
 	eapol->acct_multi_session_id = entry->acct_multi_session_id;
 }
diff --git a/wpa_supplicant/Makefile b/wpa_supplicant/Makefile
index 93083f7..5f5a30a 100644
--- a/wpa_supplicant/Makefile
+++ b/wpa_supplicant/Makefile
@@ -312,6 +312,7 @@ endif
 ifdef CONFIG_IBSS_RSN
 NEED_RSN_AUTHENTICATOR=y
 CFLAGS += -DCONFIG_IBSS_RSN
+CFLAGS += -DCONFIG_NO_VLAN
 OBJS += ibss_rsn.o
 endif
 
-- 
Jouni Malinen                                            PGP id EFC895FA