From e376290c667e970d751acc916e0efe2ed16292ed Mon Sep 17 00:00:00 2001
From: Dmitry Shmidt <dimitrysh@google.com>
Date: Mon, 30 Jun 2014 09:59:17 -0700
Subject: [PATCH] HS 2.0R2: Add update_identifier field to network

This can be used to configure a Hotspot 2.0 Release 2 network externally
for a case where wpa_supplicant-based Interworking network selection is
not used and the update_identifier cannot be copied directly from a
cred.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
---
 wpa_supplicant/config.c          | 3 +++
 wpa_supplicant/config_file.c     | 3 +++
 wpa_supplicant/config_ssid.h     | 4 ++++
 wpa_supplicant/config_winreg.c   | 3 +++
 wpa_supplicant/hs20_supplicant.c | 8 +++++++-
 5 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/wpa_supplicant/config.c b/wpa_supplicant/config.c
index 4dc3e96cd..8cd4a2f06 100644
--- a/wpa_supplicant/config.c
+++ b/wpa_supplicant/config.c
@@ -1751,6 +1751,9 @@ static const struct parse_data ssid_fields[] = {
 #ifdef CONFIG_MACSEC
 	{ INT_RANGE(macsec_policy, 0, 1) },
 #endif /* CONFIG_MACSEC */
+#ifdef CONFIG_HS20
+	{ INT(update_identifier) },
+#endif /* CONFIG_HS20 */
 };
 
 #undef OFFSET
diff --git a/wpa_supplicant/config_file.c b/wpa_supplicant/config_file.c
index fd992188c..98855d888 100644
--- a/wpa_supplicant/config_file.c
+++ b/wpa_supplicant/config_file.c
@@ -739,6 +739,9 @@ static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
 #ifdef CONFIG_MACSEC
 	INT(macsec_policy);
 #endif /* CONFIG_MACSEC */
+#ifdef CONFIG_HS20
+	INT(update_identifier);
+#endif /* CONFIG_HS20 */
 
 #undef STR
 #undef INT
diff --git a/wpa_supplicant/config_ssid.h b/wpa_supplicant/config_ssid.h
index 76b0632e3..ab474ff85 100644
--- a/wpa_supplicant/config_ssid.h
+++ b/wpa_supplicant/config_ssid.h
@@ -647,6 +647,10 @@ struct wpa_ssid {
 	 */
 	int macsec_policy;
 #endif /* CONFIG_MACSEC */
+
+#ifdef CONFIG_HS20
+	int update_identifier;
+#endif /* CONFIG_HS20 */
 };
 
 #endif /* CONFIG_SSID_H */
diff --git a/wpa_supplicant/config_winreg.c b/wpa_supplicant/config_winreg.c
index 00a10045e..199f04fbb 100644
--- a/wpa_supplicant/config_winreg.c
+++ b/wpa_supplicant/config_winreg.c
@@ -930,6 +930,9 @@ static int wpa_config_write_network(HKEY hk, struct wpa_ssid *ssid, int id)
 		  MGMT_FRAME_PROTECTION_DEFAULT);
 #endif /* CONFIG_IEEE80211W */
 	STR(id_str);
+#ifdef CONFIG_HS20
+	INT(update_identifier);
+#endif /* CONFIG_HS20 */
 
 #undef STR
 #undef INT
diff --git a/wpa_supplicant/hs20_supplicant.c b/wpa_supplicant/hs20_supplicant.c
index ab8b66bb5..257aa6d11 100644
--- a/wpa_supplicant/hs20_supplicant.c
+++ b/wpa_supplicant/hs20_supplicant.c
@@ -109,7 +109,13 @@ int hs20_get_pps_mo_id(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
 {
 	struct wpa_cred *cred;
 
-	if (ssid == NULL || ssid->parent_cred == NULL)
+	if (ssid == NULL)
+		return 0;
+
+	if (ssid->update_identifier)
+		return ssid->update_identifier;
+
+	if (ssid->parent_cred == NULL)
 		return 0;
 
 	for (cred = wpa_s->conf->cred; cred; cred = cred->next) {