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nfsd4: only require krb5 principal for NFSv4.0 callbacks 

In the sessions backchannel case, we don't need a krb5 principal name
for the client; we use the already-created forechannel credentials
instead.

Some cleanup, while we're there: make it clearer which code here is 4.0-
or sessions- specific.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2010-10-19 23:00:12 -04:00
parent 8323c3b2a6
commit 5d18c1c2a9
1 changed files with 8 additions and 7 deletions
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15
fs/nfsd/nfs4callback.c
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@ -481,22 +481,24 @@ int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *conn)
};
struct rpc_create_args args = {
.net = &init_net,
.protocol = XPRT_TRANSPORT_TCP,
.address = (struct sockaddr *) &conn->cb_addr,
.addrsize = conn->cb_addrlen,
.timeout = &timeparms,
.program = &cb_program,
.prognumber = conn->cb_prog,
.version = 0,
.authflavor = clp->cl_flavor,
.flags = (RPC_CLNT_CREATE_NOPING | RPC_CLNT_CREATE_QUIET),
.client_name = clp->cl_principal,
};
struct rpc_clnt *client;
if (!clp->cl_principal && (clp->cl_flavor >= RPC_AUTH_GSS_KRB5))
return -EINVAL;
if (clp->cl_minorversion) {
if (clp->cl_minorversion == 0) {
if (!clp->cl_principal && (clp->cl_flavor >= RPC_AUTH_GSS_KRB5))
return -EINVAL;
args.client_name = clp->cl_principal;
args.prognumber = conn->cb_prog,
args.protocol = XPRT_TRANSPORT_TCP;
clp->cl_cb_ident = conn->cb_ident;
} else {
args.bc_xprt = conn->cb_xprt;
args.prognumber = clp->cl_cb_session->se_cb_prog;
args.protocol = XPRT_TRANSPORT_BC_TCP;
@ -508,7 +510,6 @@ int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *conn)
PTR_ERR(client));
return PTR_ERR(client);
}
clp->cl_cb_ident = conn->cb_ident;
clp->cl_cb_client = client;
return 0;