ssize_t
xdr_to_generic_payload(struct iovec inmsg, void *args, xdrproc_t proc,
struct iovec *pendingpayload)
{
XDR xdr;
ssize_t ret = -1;
if ((!inmsg.iov_base) || (!args) || (!proc))
return -1;
xdrmem_create(&xdr, inmsg.iov_base, (unsigned int)inmsg.iov_len,
XDR_DECODE);
if (!PROC(&xdr, args)) {
ret = -1;
goto ret;
}
ret = xdr_decoded_length(xdr);
if (pendingpayload) {
pendingpayload->iov_base = xdr_decoded_remaining_addr(xdr);
pendingpayload->iov_len = xdr_decoded_remaining_len(xdr);
}
ret:
return ret;
}
/* Decodes the XDR format in msgbuf into rpc_msg.
* The remaining payload is returned into payload.
*/
int
xdr_to_rpc_reply(char *msgbuf, size_t len, struct rpc_msg *reply,
struct iovec *payload, char *verfbytes)
{
XDR xdr;
int ret = -EINVAL;
GF_VALIDATE_OR_GOTO("rpc", msgbuf, out);
GF_VALIDATE_OR_GOTO("rpc", reply, out);
memset(reply, 0, sizeof(struct rpc_msg));
reply->acpted_rply.ar_verf = _null_auth;
reply->acpted_rply.ar_results.where = NULL;
reply->acpted_rply.ar_results.proc = (xdrproc_t)(xdr_void);
xdrmem_create(&xdr, msgbuf, len, XDR_DECODE);
if (!xdr_replymsg(&xdr, reply)) {
gf_log("rpc", GF_LOG_WARNING, "failed to decode reply msg");
goto out;
}
if (payload) {
payload->iov_base = xdr_decoded_remaining_addr(xdr);
payload->iov_len = xdr_decoded_remaining_len(xdr);
}
ret = 0;
out:
return ret;
}
/* Decodes the XDR format in msgbuf into rpc_msg.
* The remaining payload is returned into payload.
*/
int
xdr_to_rpc_call (char *msgbuf, size_t len, struct rpc_msg *call,
struct iovec *payload, char *credbytes, char *verfbytes)
{
XDR xdr;
char opaquebytes[MAX_AUTH_BYTES];
struct opaque_auth *oa = NULL;
int ret = -1;
GF_VALIDATE_OR_GOTO ("rpc", msgbuf, out);
GF_VALIDATE_OR_GOTO ("rpc", call, out);
memset (call, 0, sizeof (*call));
oa = &call->rm_call.cb_cred;
if (!credbytes)
oa->oa_base = opaquebytes;
else
oa->oa_base = credbytes;
oa = &call->rm_call.cb_verf;
if (!verfbytes)
oa->oa_base = opaquebytes;
else
oa->oa_base = verfbytes;
xdrmem_create (&xdr, msgbuf, len, XDR_DECODE);
if (!xdr_callmsg (&xdr, call)) {
gf_log ("rpc", GF_LOG_WARNING, "failed to decode call msg");
goto out;
}
if (payload) {
payload->iov_base = xdr_decoded_remaining_addr (xdr);
payload->iov_len = xdr_decoded_remaining_len (xdr);
}
ret = 0;
out:
return ret;
}
