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| author | J. Bruce Fields <bfields@redhat.com> | 2013-04-09 23:42:28 +0200 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2013-04-09 23:42:28 +0200 |
| commit | 23340032e64d70ce76817a88e8193c8040b095cf (patch) | |
| tree | 12d7ebaea1fdc309f92514c96033b6a471053e1b /fs | |
| parent | nfsd4: check backchannel attributes on create_session (diff) | |
| download | linux-23340032e64d70ce76817a88e8193c8040b095cf.tar.xz linux-23340032e64d70ce76817a88e8193c8040b095cf.zip | |
nfsd4: clean up validate_stateid
The logic here is better expressed with a switch statement.
While we're here, CLOSED stateids (or stateids of an unkown type--which
would indicate a server bug) should probably return nfserr_bad_stateid,
though this behavior shouldn't affect any non-buggy client.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 67017fcebb21..add9721ab059 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -3456,13 +3456,22 @@ static __be32 nfsd4_validate_stateid(struct nfs4_client *cl, stateid_t *stateid) status = check_stateid_generation(stateid, &s->sc_stateid, 1); if (status) return status; - if (!(s->sc_type & (NFS4_OPEN_STID | NFS4_LOCK_STID))) + switch (s->sc_type) { + case NFS4_DELEG_STID: + return nfs_ok; + case NFS4_OPEN_STID: + case NFS4_LOCK_STID: + ols = openlockstateid(s); + if (ols->st_stateowner->so_is_open_owner + && !(openowner(ols->st_stateowner)->oo_flags + & NFS4_OO_CONFIRMED)) + return nfserr_bad_stateid; return nfs_ok; - ols = openlockstateid(s); - if (ols->st_stateowner->so_is_open_owner - && !(openowner(ols->st_stateowner)->oo_flags & NFS4_OO_CONFIRMED)) + default: + printk("unknown stateid type %x\n", s->sc_type); + case NFS4_CLOSED_STID: return nfserr_bad_stateid; - return nfs_ok; + } } static __be32 nfsd4_lookup_stateid(stateid_t *stateid, unsigned char typemask, |