#define NFSPROC4_CB_NULL 0
#define NFSPROC4_CB_COMPOUND 1
-#define NFS4_STATEID_SIZE 16
/* Index of predefined Linux callback client operations */
}
static void
-encode_cb_sequence(struct xdr_stream *xdr, struct nfsd4_cb_sequence *args,
+encode_cb_sequence(struct xdr_stream *xdr, struct nfsd4_cb_args *args,
struct nfs4_cb_compound_hdr *hdr)
{
__be32 *p;
RESERVE_SPACE(1 + NFS4_MAX_SESSIONID_LEN + 20);
WRITE32(OP_CB_SEQUENCE);
- WRITEMEM(args->cbs_clp->cl_sessionid.data, NFS4_MAX_SESSIONID_LEN);
- WRITE32(args->cbs_clp->cl_cb_seq_nr);
+ WRITEMEM(args->args_clp->cl_sessionid.data, NFS4_MAX_SESSIONID_LEN);
+ WRITE32(args->args_clp->cl_cb_seq_nr);
WRITE32(0); /* slotid, always 0 */
WRITE32(0); /* highest slotid always 0 */
WRITE32(0); /* cachethis always 0 */
static int
nfs4_xdr_enc_cb_recall(struct rpc_rqst *req, __be32 *p,
- struct nfs4_rpc_args *rpc_args)
+ struct nfsd4_cb_args *rpc_args)
{
struct xdr_stream xdr;
struct nfs4_delegation *args = rpc_args->args_op;
struct nfs4_cb_compound_hdr hdr = {
.ident = args->dl_ident,
- .minorversion = rpc_args->args_seq.cbs_minorversion,
+ .minorversion = rpc_args->args_minorversion,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_cb_compound_hdr(&xdr, &hdr);
- encode_cb_sequence(&xdr, &rpc_args->args_seq, &hdr);
+ encode_cb_sequence(&xdr, rpc_args, &hdr);
encode_cb_recall(&xdr, args, &hdr);
encode_cb_nops(&hdr);
return 0;
* with a single slot.
*/
static int
-decode_cb_sequence(struct xdr_stream *xdr, struct nfsd4_cb_sequence *res,
+decode_cb_sequence(struct xdr_stream *xdr, struct nfsd4_cb_args *res,
struct rpc_rqst *rqstp)
{
struct nfs4_sessionid id;
u32 dummy;
__be32 *p;
- if (res->cbs_minorversion == 0)
+ if (res->args_minorversion == 0)
return 0;
status = decode_cb_op_hdr(xdr, OP_CB_SEQUENCE);
READ_BUF(NFS4_MAX_SESSIONID_LEN + 16);
memcpy(id.data, p, NFS4_MAX_SESSIONID_LEN);
p += XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN);
- if (memcmp(id.data, res->cbs_clp->cl_sessionid.data,
+ if (memcmp(id.data, res->args_clp->cl_sessionid.data,
NFS4_MAX_SESSIONID_LEN)) {
dprintk("%s Invalid session id\n", __func__);
goto out;
}
READ32(dummy);
- if (dummy != res->cbs_clp->cl_cb_seq_nr) {
+ if (dummy != res->args_clp->cl_cb_seq_nr) {
dprintk("%s Invalid sequence number\n", __func__);
goto out;
}
static int
nfs4_xdr_dec_cb_recall(struct rpc_rqst *rqstp, __be32 *p,
- struct nfsd4_cb_sequence *seq)
+ struct nfsd4_cb_args *args)
{
struct xdr_stream xdr;
struct nfs4_cb_compound_hdr hdr;
status = decode_cb_compound_hdr(&xdr, &hdr);
if (status)
goto out;
- if (seq) {
- status = decode_cb_sequence(&xdr, seq, rqstp);
+ if (args) {
+ status = decode_cb_sequence(&xdr, args, rqstp);
if (status)
goto out;
}
/* Reference counting, callback cleanup, etc., all look racy as heck.
* And why is cl_cb_set an atomic? */
-int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *cb)
+int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *conn)
{
struct rpc_timeout timeparms = {
.to_initval = max_cb_time(),
.to_retries = 0,
};
struct rpc_create_args args = {
+ .net = &init_net,
.protocol = XPRT_TRANSPORT_TCP,
- .address = (struct sockaddr *) &cb->cb_addr,
- .addrsize = cb->cb_addrlen,
+ .address = (struct sockaddr *) &conn->cb_addr,
+ .addrsize = conn->cb_addrlen,
.timeout = &timeparms,
.program = &cb_program,
- .prognumber = cb->cb_prog,
+ .prognumber = conn->cb_prog,
.version = 0,
.authflavor = clp->cl_flavor,
.flags = (RPC_CLNT_CREATE_NOPING | RPC_CLNT_CREATE_QUIET),
if (!clp->cl_principal && (clp->cl_flavor >= RPC_AUTH_GSS_KRB5))
return -EINVAL;
- if (cb->cb_minorversion) {
- args.bc_xprt = cb->cb_xprt;
+ if (conn->cb_minorversion) {
+ args.bc_xprt = conn->cb_xprt;
args.protocol = XPRT_TRANSPORT_BC_TCP;
}
/* Create RPC client */
/*
* Set up the callback client and put a NFSPROC4_CB_NULL on the wire...
*/
-void nfsd4_probe_callback(struct nfs4_client *clp, struct nfs4_cb_conn *cb)
+void nfsd4_probe_callback(struct nfs4_client *clp, struct nfs4_cb_conn *conn)
{
int status;
BUG_ON(atomic_read(&clp->cl_cb_set));
- status = setup_callback_client(clp, cb);
+ status = setup_callback_client(clp, conn);
if (status) {
warn_no_callback_path(clp, status);
return;
static int nfsd41_cb_setup_sequence(struct nfs4_client *clp,
struct rpc_task *task)
{
- struct nfs4_rpc_args *args = task->tk_msg.rpc_argp;
u32 *ptr = (u32 *)clp->cl_sessionid.data;
int status = 0;
status = -EAGAIN;
goto out;
}
-
- /*
- * We'll need the clp during XDR encoding and decoding,
- * and the sequence during decoding to verify the reply
- */
- args->args_seq.cbs_clp = clp;
- task->tk_msg.rpc_resp = &args->args_seq;
-
out:
dprintk("%s status=%d\n", __func__, status);
return status;
*/
static void nfsd4_cb_prepare(struct rpc_task *task, void *calldata)
{
- struct nfs4_delegation *dp = calldata;
+ struct nfsd4_callback *cb = calldata;
+ struct nfs4_delegation *dp = container_of(cb, struct nfs4_delegation, dl_recall);
struct nfs4_client *clp = dp->dl_client;
- struct nfs4_rpc_args *args = task->tk_msg.rpc_argp;
+ struct nfsd4_cb_args *args = task->tk_msg.rpc_argp;
u32 minorversion = clp->cl_cb_conn.cb_minorversion;
int status = 0;
- args->args_seq.cbs_minorversion = minorversion;
+ args->args_minorversion = minorversion;
if (minorversion) {
status = nfsd41_cb_setup_sequence(clp, task);
if (status) {
static void nfsd4_cb_done(struct rpc_task *task, void *calldata)
{
- struct nfs4_delegation *dp = calldata;
+ struct nfsd4_callback *cb = calldata;
+ struct nfs4_delegation *dp = container_of(cb, struct nfs4_delegation, dl_recall);
struct nfs4_client *clp = dp->dl_client;
dprintk("%s: minorversion=%d\n", __func__,
static void nfsd4_cb_recall_done(struct rpc_task *task, void *calldata)
{
- struct nfs4_delegation *dp = calldata;
+ struct nfsd4_callback *cb = calldata;
+ struct nfs4_delegation *dp = container_of(cb, struct nfs4_delegation, dl_recall);
struct nfs4_client *clp = dp->dl_client;
struct rpc_clnt *current_rpc_client = clp->cl_cb_client;
static void nfsd4_cb_recall_release(void *calldata)
{
- struct nfs4_delegation *dp = calldata;
+ struct nfsd4_callback *cb = calldata;
+ struct nfs4_delegation *dp = container_of(cb, struct nfs4_delegation, dl_recall);
nfs4_put_delegation(dp);
}
rpc_shutdown_client(old);
}
-/*
- * called with dp->dl_count inc'ed.
- */
-static void _nfsd4_cb_recall(struct nfs4_delegation *dp)
+void nfsd4_release_cb(struct nfsd4_callback *cb)
{
- struct nfs4_client *clp = dp->dl_client;
+ if (cb->cb_ops->rpc_release)
+ cb->cb_ops->rpc_release(cb);
+}
+
+void nfsd4_do_callback_rpc(struct work_struct *w)
+{
+ struct nfsd4_callback *cb = container_of(w, struct nfsd4_callback, cb_work);
+ struct nfs4_client *clp = cb->cb_args.args_clp;
struct rpc_clnt *clnt = clp->cl_cb_client;
- struct nfs4_rpc_args *args = &dp->dl_recall.cb_args;
- struct rpc_message msg = {
- .rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_RECALL],
- .rpc_cred = callback_cred
- };
if (clnt == NULL) {
- nfs4_put_delegation(dp);
+ nfsd4_release_cb(cb);
return; /* Client is shutting down; give up. */
}
-
- args->args_op = dp;
- msg.rpc_argp = args;
- dp->dl_retries = 1;
- rpc_call_async(clnt, &msg, RPC_TASK_SOFT, &nfsd4_cb_recall_ops, dp);
+ rpc_call_async(clnt, &cb->cb_msg, RPC_TASK_SOFT, cb->cb_ops, cb);
}
-void nfsd4_do_callback_rpc(struct work_struct *w)
+void nfsd4_cb_recall(struct nfs4_delegation *dp)
{
- /* XXX: for now, just send off delegation recall. */
- /* In future, generalize to handle any sort of callback. */
- struct nfsd4_callback *c = container_of(w, struct nfsd4_callback, cb_work);
- struct nfs4_delegation *dp = container_of(c, struct nfs4_delegation, dl_recall);
-
- _nfsd4_cb_recall(dp);
-}
+ struct nfsd4_callback *cb = &dp->dl_recall;
+ dp->dl_retries = 1;
+ cb->cb_args.args_op = dp;
+ cb->cb_args.args_clp = dp->dl_client;
+ cb->cb_msg.rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_RECALL];
+ cb->cb_msg.rpc_argp = &cb->cb_args;
+ cb->cb_msg.rpc_resp = &cb->cb_args;
+ cb->cb_msg.rpc_cred = callback_cred;
+
+ cb->cb_ops = &nfsd4_cb_recall_ops;
+ dp->dl_retries = 1;
-void nfsd4_cb_recall(struct nfs4_delegation *dp)
-{
queue_work(callback_wq, &dp->dl_recall.cb_work);
}
projects / cascardo / linux.git / blobdiff