linux-kernel - [PATCH] [175/275] RxRPC: Fix v1 keys

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Message-Id: <20110330210657.F2D073E1A05@tassilo.jf.intel.com>
Date:	Wed, 30 Mar 2011 14:06:57 -0700 (PDT)
From:	Andi Kleen <andi@...stfloor.org>
To:	anton@....ibm.com, anton@...ba.org, dhowells@...hat.com,
	davem@...emloft.net, gregkh@...e.de, ak@...ux.intel.com,
	linux-kernel@...r.kernel.org, stable@...nel.org,
	tim.bird@...sony.com
Subject: [PATCH] [175/275] RxRPC: Fix v1 keys

2.6.35-longterm review patch.  If anyone has any objections, please let me know.

------------------
From: Anton Blanchard <anton@....ibm.com>

commit f009918a1c1bbf8607b8aab3959876913a30193a upstream.

commit 339412841d7 (RxRPC: Allow key payloads to be passed in XDR form)
broke klog for me. I notice the v1 key struct had a kif_version field
added:

-struct rxkad_key {
-       u16     security_index;         /* RxRPC header security index */
-       u16     ticket_len;             /* length of ticket[] */
-       u32     expiry;                 /* time at which expires */
-       u32     kvno;                   /* key version number */
-       u8      session_key[8];         /* DES session key */
-       u8      ticket[0];              /* the encrypted ticket */
-};

+struct rxrpc_key_data_v1 {
+       u32             kif_version;            /* 1 */
+       u16             security_index;
+       u16             ticket_length;
+       u32             expiry;                 /* time_t */
+       u32             kvno;
+       u8              session_key[8];
+       u8              ticket[0];
+};

However the code in rxrpc_instantiate strips it away:

	data += sizeof(kver);
	datalen -= sizeof(kver);

Removing kif_version fixes my problem.

Signed-off-by: Anton Blanchard <anton@...ba.org>
Signed-off-by: David Howells <dhowells@...hat.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
Signed-off-by: Andi Kleen <ak@...ux.intel.com>

---
 include/keys/rxrpc-type.h |    1 -
 1 file changed, 1 deletion(-)

Index: linux-2.6.35.y/include/keys/rxrpc-type.h
===================================================================
--- linux-2.6.35.y.orig/include/keys/rxrpc-type.h	2011-03-29 22:50:53.770882557 -0700
+++ linux-2.6.35.y/include/keys/rxrpc-type.h	2011-03-29 23:03:01.881252033 -0700
@@ -99,7 +99,6 @@
  * structure of raw payloads passed to add_key() or instantiate key
  */
 struct rxrpc_key_data_v1 {
-	u32		kif_version;		/* 1 */
 	u16		security_index;
 	u16		ticket_length;
 	u32		expiry;			/* time_t */
--
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