From c3a90c788b743303c4d824780a3a7271693fb64a Mon Sep 17 00:00:00 2001
From: Remi Denis-Courmont <remi.denis-courmont@nokia.com>
Date: Sun, 26 Oct 2008 23:07:25 -0700
Subject: [PATCH] Phonet: do not reply to indication reset packets
This fixes a potential error packet loop.
Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/linux/phonet.h | 1 +
net/phonet/af_phonet.c | 5 ++++-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/include/linux/phonet.h b/include/linux/phonet.h
index c9609f9aedac..4157faa857b6 100644
--- a/include/linux/phonet.h
+++ b/include/linux/phonet.h
@@ -72,6 +72,7 @@ struct phonetmsg {
} pn_msg_u;
};
#define PN_COMMON_MESSAGE 0xF0
+#define PN_COMMGR 0x10
#define PN_PREFIX 0xE0 /* resource for extended messages */
#define pn_submsg_id pn_msg_u.base.pn_submsg_id
#define pn_e_submsg_id pn_msg_u.ext.pn_e_submsg_id
diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c
index b9d97effebe3..defeb7a0d502 100644
--- a/net/phonet/af_phonet.c
+++ b/net/phonet/af_phonet.c
@@ -261,6 +261,8 @@ static inline int can_respond(struct sk_buff *skb)
return 0; /* we are not the destination */
if (ph->pn_res == PN_PREFIX && !pskb_may_pull(skb, 5))
return 0;
+ if (ph->pn_res == PN_COMMGR) /* indications */
+ return 0;
ph = pn_hdr(skb); /* re-acquires the pointer */
pm = pn_msg(skb);
@@ -309,7 +311,8 @@ static int send_reset_indications(struct sk_buff *rskb)
return pn_raw_send(data, sizeof(data), rskb->dev,
pn_object(oph->pn_sdev, 0x00),
- pn_object(oph->pn_rdev, oph->pn_robj), 0x10);
+ pn_object(oph->pn_rdev, oph->pn_robj),
+ PN_COMMGR);
}
--
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