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Commit c3a90c78 authored by Remi Denis-Courmont's avatar Remi Denis-Courmont Committed by David S. Miller
Browse files

Phonet: do not reply to indication reset packets 



This fixes a potential error packet loop.

Signed-off-by: default avatarRemi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e214a8cc

include/linux/phonet.h

+1 −0
Original line number Diff line number Diff line
@@ -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

net/phonet/af_phonet.c

+4 −1
Original line number Diff line number Diff line
@@ -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);

}