linux-kernel - RxRPC: Fix v1 keys

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Message-ID: <20110215153856.10e19fbf@kryten>
Date:	Tue, 15 Feb 2011 15:38:56 +1100
From:	Anton Blanchard <anton@....ibm.com>
To:	David Howells <dhowells@...hat.com>
Cc:	linux-afs@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: RxRPC: Fix v1 keys


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>
---

Index: linux-2.6/include/keys/rxrpc-type.h
===================================================================
--- linux-2.6.orig/include/keys/rxrpc-type.h	2011-02-14 12:12:21.874546332 +1100
+++ linux-2.6/include/keys/rxrpc-type.h	2011-02-14 12:12:26.615010317 +1100
@@ -99,7 +99,6 @@ struct rxrpc_key_token {
  * 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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