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SUNRPC: Don't recognize RPC_AUTH_MAXFLAVOR

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RPC_AUTH_MAXFLAVOR is an invalid flavor, on purpose.  Don't allow
any processing whatsoever if a caller passes it to rpcauth_create()
or rpcauth_get_gssinfo().

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever 2013-03-22 12:53:08 -04:00 committed by Trond Myklebust
parent 4edaa30888
commit 1c74a244fc
1 changed files with 4 additions and 1 deletions
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5
net/sunrpc/auth.c
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@ -82,7 +82,7 @@ MODULE_PARM_DESC(auth_hashtable_size, "RPC credential cache hashtable size");
static u32
pseudoflavor_to_flavor(u32 flavor) {
if (flavor >= RPC_AUTH_MAXFLAVOR)
if (flavor > RPC_AUTH_MAXFLAVOR)
return RPC_AUTH_GSS;
return flavor;
}
@ -173,6 +173,9 @@ rpcauth_get_gssinfo(rpc_authflavor_t pseudoflavor, struct rpcsec_gss_info *info)
const struct rpc_authops *ops;
int result;
if (flavor >= RPC_AUTH_MAXFLAVOR)
return -EINVAL;
ops = auth_flavors[flavor];
if (ops == NULL)
request_module("rpc-auth-%u", flavor);