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nfsd4: better error return to indicate SSV non-support

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As 4.1 becomes less experimental and SSV still isn't implemented, we
have to admit it's not going to be, and return some sensible error
rather than just saying "our server's broken".  Discussion in the ietf
group hasn't turned up any objections to using NFS4ERR_ENC_ALG_UNSUPP
for that purpose.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2013-04-12 18:10:56 -04:00
parent aa387d6ce1
commit dd30333cf5
1 changed files with 1 additions and 0 deletions
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fs/nfsd/nfs4state.c
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@ -1651,6 +1651,7 @@ nfsd4_exchange_id(struct svc_rqst *rqstp,
default: /* checked by xdr code */
WARN_ON_ONCE(1);
case SP4_SSV:
return nfserr_encr_alg_unsupp;
case SP4_MACH_CRED:
return nfserr_serverfault; /* no excuse :-/ */
}