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AFS: Correctly translate auth error aborts and don't failover in such cases

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Authentication error abort codes should be translated to appropriate
Linux error codes, rather than all being translated to EREMOTEIO - which
indicates that the server had internal problems.

Additionally, a server shouldn't be marked unavailable and the next
server tried if an authentication error occurs.  This will quickly make
all the servers unavailable to the client.  Instead the error should be
returned straight to the user.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Howells 2009-06-16 21:36:49 +01:00 committed by Linus Torvalds
parent 519d25679e
commit 005411c3e9
2 changed files with 18 additions and 0 deletions
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16
fs/afs/misc.c
View file

@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <rxrpc/packet.h>
#include "internal.h"
#include "afs_fs.h"
@ -54,6 +55,21 @@ int afs_abort_to_error(u32 abort_code)
case 0x2f6df24: return -ENOLCK;
case 0x2f6df26: return -ENOTEMPTY;
case 0x2f6df78: return -EDQUOT;
case RXKADINCONSISTENCY: return -EPROTO;
case RXKADPACKETSHORT: return -EPROTO;
case RXKADLEVELFAIL: return -EKEYREJECTED;
case RXKADTICKETLEN: return -EKEYREJECTED;
case RXKADOUTOFSEQUENCE: return -EPROTO;
case RXKADNOAUTH: return -EKEYREJECTED;
case RXKADBADKEY: return -EKEYREJECTED;
case RXKADBADTICKET: return -EKEYREJECTED;
case RXKADUNKNOWNKEY: return -EKEYREJECTED;
case RXKADEXPIRED: return -EKEYEXPIRED;
case RXKADSEALEDINCON: return -EKEYREJECTED;
case RXKADDATALEN: return -EKEYREJECTED;
case RXKADILLEGALLEVEL: return -EKEYREJECTED;
default: return -EREMOTEIO;
}
}

2
fs/afs/vlocation.c
View file

@ -65,6 +65,8 @@ static int afs_vlocation_access_vl_by_name(struct afs_vlocation *vl,
goto out;
goto rotate;
case -ENOMEDIUM:
case -EKEYREJECTED:
case -EKEYEXPIRED:
goto out;
default:
ret = -EIO;