Exemple #1
0
def pack_reply(xid, *args):
    """Packs an RPC reply from a variable-length arg list (args):
    MSG_ACCEPTED, verf, (SUCCESS | PROG_MISMATCH, low, hi | PROG_UNAVAIL
                         | PROC_UNAVAIL | GARBAGE_ARGS | SYSTEM_ERR)
    MSG_DENIED, (RPC_MISMATCH, hi, low | AUTH_ERROR, auth_stat)

    verf is an auth of the form (flavor, value)
    Returns an xdrlib.Packer that the caller can use to add data,
    such as the results of a SUCCESSful call.
    """
    arg = list(args) # need a mutable list for pop()
    msg = RPCProto.rpc_msg()
    msg.xid = xid
    msg.body = RPCProto.body_t()
    msg.body.mtype = RPCProto.REPLY
    msg.body.rbody = reply = RPCProto.reply_body()
    reply.stat = reply_stat = arg.pop(0)
    if reply_stat == MSG_ACCEPTED:
        reply.areply = RPCProto.accepted_reply()
        reply.areply.verf = verf = arg.pop(0)
        reply.areply.reply_data = RPCProto.reply_data_t()
        reply.areply.reply_data.stat = accept_stat = arg.pop(0)
        if accept_stat == PROG_MISMATCH:
            reply.areply.reply_data.mismatch_info = RPCProto.mismatch_info_t()
            reply.areply.reply_data.mismatch_info.low  = arg.pop(0)
            reply.areply.reply_data.mismatch_info.high = arg.pop(0)
        elif (accept_stat == SUCCESS):
            reply.areply.reply_data.results = '' # FIXME?
        elif (accept_stat == PROG_UNAVAIL or
              accept_stat == PROC_UNAVAIL or
              accept_stat == GARBAGE_ARGS or
              accept_stat == SYSTEM_ERR):
            pass
        else:
            raise ValueError("unknown accept_stat: %u" % accept_stat)
    elif reply_stat == MSG_DENIED:
        reply.rreply = RPCProto.rejected_reply()
        reply.rreply.stat = reject_stat = arg.pop(0)
        if reject_stat == RPC_MISMATCH:
            reply.rreply.mismatch_info.low = RPCProto.mismatch_info_t()
            reply.rreply.mismatch_info.low = arg.pop(0)
            reply.rreply.mismatch_info.high = arg.pop(0)
        elif reject_stat == AUTH_ERROR:
            reply.rreply.astat = arg.pop(0)
        else:
            raise ValueError("unknown reject_stat: %u" % reject_stat)
    else:
        raise ValueError("unknown reply_stat: %u" % reply_stat)
    p = Packer()
    RPCProto.pack_rpc_msg(p, msg)
    return p
Exemple #2
0
def pack_reply(xid, *args):
    """Packs an RPC reply from a variable-length arg list (args):
    MSG_ACCEPTED, verf, (SUCCESS | PROG_MISMATCH, low, hi | PROG_UNAVAIL
                         | PROC_UNAVAIL | GARBAGE_ARGS | SYSTEM_ERR)
    MSG_DENIED, (RPC_MISMATCH, hi, low | AUTH_ERROR, auth_stat)

    verf is an auth of the form (flavor, value)
    Returns an xdrlib.Packer that the caller can use to add data,
    such as the results of a SUCCESSful call.
    """
    arg = list(args)  # need a mutable list for pop()
    msg = RPCProto.rpc_msg()
    msg.xid = xid
    msg.body = RPCProto.body_t()
    msg.body.mtype = RPCProto.REPLY
    msg.body.rbody = reply = RPCProto.reply_body()
    reply.stat = reply_stat = arg.pop(0)
    if reply_stat == MSG_ACCEPTED:
        reply.areply = RPCProto.accepted_reply()
        reply.areply.verf = verf = arg.pop(0)
        reply.areply.reply_data = RPCProto.reply_data_t()
        reply.areply.reply_data.stat = accept_stat = arg.pop(0)
        if accept_stat == PROG_MISMATCH:
            reply.areply.reply_data.mismatch_info = RPCProto.mismatch_info_t()
            reply.areply.reply_data.mismatch_info.low = arg.pop(0)
            reply.areply.reply_data.mismatch_info.high = arg.pop(0)
        elif (accept_stat == SUCCESS):
            reply.areply.reply_data.results = ''  # FIXME?
        elif (accept_stat == PROG_UNAVAIL or accept_stat == PROC_UNAVAIL
              or accept_stat == GARBAGE_ARGS or accept_stat == SYSTEM_ERR):
            pass
        else:
            raise ValueError("unknown accept_stat: %u" % accept_stat)
    elif reply_stat == MSG_DENIED:
        reply.rreply = RPCProto.rejected_reply()
        reply.rreply.stat = reject_stat = arg.pop(0)
        if reject_stat == RPC_MISMATCH:
            reply.rreply.mismatch_info.low = RPCProto.mismatch_info_t()
            reply.rreply.mismatch_info.low = arg.pop(0)
            reply.rreply.mismatch_info.high = arg.pop(0)
        elif reject_stat == AUTH_ERROR:
            reply.rreply.astat = arg.pop(0)
        else:
            raise ValueError("unknown reject_stat: %u" % reject_stat)
    else:
        raise ValueError("unknown reply_stat: %u" % reply_stat)
    p = Packer()
    RPCProto.pack_rpc_msg(p, msg)
    return p