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nfsd4: allow client to send no cb_sec flavors 

In testing I notice that some of the pynfs tests forget to send any
cb_sec flavors, and that we haven't necessarily errored out in that case
before.

I'll fix pynfs, but am also inclined to default to trying AUTH_NONE in
that case in case this is something clients actually do.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2013-05-17 16:25:32 -04:00
parent b78724b705
commit 57569a7070
1 changed files with 5 additions and 1 deletions
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6
fs/nfsd/nfs4xdr.c
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@ -460,7 +460,11 @@ static __be32 nfsd4_decode_cb_sec(struct nfsd4_compoundargs *argp, struct nfsd4_
/* callback_sec_params4 */
READ_BUF(4);
READ32(nr_secflavs);
cbs->flavor = (u32)(-1);
if (nr_secflavs)
cbs->flavor = (u32)(-1);
else
/* Is this legal? Be generous, take it to mean AUTH_NONE: */
cbs->flavor = 0;
for (i = 0; i < nr_secflavs; ++i) {
READ_BUF(4);
READ32(dummy);