From: Jouni Malinen <j@w1.fi>
Date: Sun, 26 Jul 2015 08:25:49 +0000 (+0300)
Subject: FST: Fix dialog token wrap-around
X-Git-Tag: hostap_2_5~309
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=fe73b469e8a614b7e04e17d2f3e8fd9d542191a2;p=thirdparty%2Fhostap.git

FST: Fix dialog token wrap-around

Dialog token is only 8 bits and maintaining u32 version of it in struct
fst_group resulted in incorrect wrap-around behavior in
fst_group_assign_dialog_token(). It was possible to assign u8
dialog_token value 0 because of this. Fix this by using u8 variable
consistently.

Signed-off-by: Jouni Malinen <j@w1.fi>
---

diff --git a/src/fst/fst_group.h b/src/fst/fst_group.h
index faee26293..3a87c0bc9 100644
--- a/src/fst/fst_group.h
+++ b/src/fst/fst_group.h
@@ -12,7 +12,7 @@
 struct fst_group {
 	char group_id[IFNAMSIZ + 1];
 	struct dl_list ifaces;
-	u32 dialog_token;
+	u8 dialog_token;
 	u32 fsts_id;
 	struct dl_list global_groups_lentry;
 };