| /* |
| * clnt_raw.c |
| * |
| * Copyright (c) 2010, Oracle America, Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * * Neither the name of the "Oracle America, Inc." nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
| * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * Memory based rpc for simple testing and timing. |
| * Interface to create an rpc client and server in the same process. |
| * This lets us simulate rpc and get round trip overhead, without |
| * any interference from the kernel. |
| */ |
| |
| #include <rpc/rpc.h> |
| #include <rpc/svc.h> |
| #include <rpc/xdr.h> |
| #include <libintl.h> |
| |
| #define MCALL_MSG_SIZE 24 |
| |
| /* |
| * This is the "network" we will be moving stuff over. |
| */ |
| struct clntraw_private_s |
| { |
| CLIENT client_object; |
| XDR xdr_stream; |
| char _raw_buf[UDPMSGSIZE]; |
| union |
| { |
| char msg[MCALL_MSG_SIZE]; |
| u_long rm_xid; |
| } mashl_callmsg; |
| u_int mcnt; |
| }; |
| #ifdef _RPC_THREAD_SAFE_ |
| #define clntraw_private RPC_THREAD_VARIABLE(clntraw_private_s) |
| #else |
| static struct clntraw_private_s *clntraw_private; |
| #endif |
| |
| static enum clnt_stat clntraw_call (CLIENT *, u_long, xdrproc_t, caddr_t, |
| xdrproc_t, caddr_t, struct timeval); |
| static void clntraw_abort (void); |
| static void clntraw_geterr (CLIENT *, struct rpc_err *); |
| static bool_t clntraw_freeres (CLIENT *, xdrproc_t, caddr_t); |
| static bool_t clntraw_control (CLIENT *, int, char *); |
| static void clntraw_destroy (CLIENT *); |
| |
| static const struct clnt_ops client_ops = |
| { |
| clntraw_call, |
| clntraw_abort, |
| clntraw_geterr, |
| clntraw_freeres, |
| clntraw_destroy, |
| clntraw_control |
| }; |
| |
| /* |
| * Create a client handle for memory based rpc. |
| */ |
| CLIENT * |
| clntraw_create (u_long prog, u_long vers) |
| { |
| struct clntraw_private_s *clp = clntraw_private; |
| struct rpc_msg call_msg; |
| XDR *xdrs; |
| CLIENT *client; |
| |
| if (clp == 0) |
| { |
| clp = (struct clntraw_private_s *) calloc (1, sizeof (*clp)); |
| if (clp == 0) |
| return (0); |
| clntraw_private = clp; |
| } |
| xdrs = &clp->xdr_stream; |
| client = &clp->client_object; |
| /* |
| * pre-serialize the static part of the call msg and stash it away |
| */ |
| call_msg.rm_direction = CALL; |
| call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; |
| call_msg.rm_call.cb_prog = prog; |
| call_msg.rm_call.cb_vers = vers; |
| xdrmem_create (xdrs, clp->mashl_callmsg.msg, MCALL_MSG_SIZE, XDR_ENCODE); |
| if (!xdr_callhdr (xdrs, &call_msg)) |
| { |
| perror (_ ("clnt_raw.c: fatal header serialization error")); |
| } |
| clp->mcnt = XDR_GETPOS (xdrs); |
| XDR_DESTROY (xdrs); |
| |
| /* |
| * Set xdrmem for client/server shared buffer |
| */ |
| xdrmem_create (xdrs, clp->_raw_buf, UDPMSGSIZE, XDR_FREE); |
| |
| /* |
| * create client handle |
| */ |
| client->cl_ops = (struct clnt_ops *) &client_ops; |
| client->cl_auth = authnone_create (); |
| return client; |
| } |
| libc_hidden_nolink_sunrpc (clntraw_create, GLIBC_2_0) |
| |
| static enum clnt_stat |
| clntraw_call (h, proc, xargs, argsp, xresults, resultsp, timeout) |
| CLIENT *h; |
| u_long proc; |
| xdrproc_t xargs; |
| caddr_t argsp; |
| xdrproc_t xresults; |
| caddr_t resultsp; |
| struct timeval timeout; |
| { |
| struct clntraw_private_s *clp = clntraw_private; |
| XDR *xdrs = &clp->xdr_stream; |
| struct rpc_msg msg; |
| enum clnt_stat status; |
| struct rpc_err error; |
| |
| if (clp == NULL) |
| return RPC_FAILED; |
| call_again: |
| /* |
| * send request |
| */ |
| xdrs->x_op = XDR_ENCODE; |
| XDR_SETPOS (xdrs, 0); |
| /* Just checking the union definition to access rm_xid is correct. */ |
| if (offsetof (struct rpc_msg, rm_xid) != 0) |
| abort (); |
| clp->mashl_callmsg.rm_xid++; |
| if ((!XDR_PUTBYTES (xdrs, clp->mashl_callmsg.msg, clp->mcnt)) || |
| (!XDR_PUTLONG (xdrs, (long *) &proc)) || |
| (!AUTH_MARSHALL (h->cl_auth, xdrs)) || |
| (!(*xargs) (xdrs, argsp))) |
| { |
| return (RPC_CANTENCODEARGS); |
| } |
| (void) XDR_GETPOS (xdrs); /* called just to cause overhead */ |
| |
| /* |
| * We have to call server input routine here because this is |
| * all going on in one process. Yuk. |
| */ |
| svc_getreq (1); |
| |
| /* |
| * get results |
| */ |
| xdrs->x_op = XDR_DECODE; |
| XDR_SETPOS (xdrs, 0); |
| msg.acpted_rply.ar_verf = _null_auth; |
| msg.acpted_rply.ar_results.where = resultsp; |
| msg.acpted_rply.ar_results.proc = xresults; |
| if (!xdr_replymsg (xdrs, &msg)) |
| return RPC_CANTDECODERES; |
| _seterr_reply (&msg, &error); |
| status = error.re_status; |
| |
| if (status == RPC_SUCCESS) |
| { |
| if (!AUTH_VALIDATE (h->cl_auth, &msg.acpted_rply.ar_verf)) |
| { |
| status = RPC_AUTHERROR; |
| } |
| } /* end successful completion */ |
| else |
| { |
| if (AUTH_REFRESH (h->cl_auth)) |
| goto call_again; |
| } /* end of unsuccessful completion */ |
| |
| if (status == RPC_SUCCESS) |
| { |
| if (!AUTH_VALIDATE (h->cl_auth, &msg.acpted_rply.ar_verf)) |
| { |
| status = RPC_AUTHERROR; |
| } |
| if (msg.acpted_rply.ar_verf.oa_base != NULL) |
| { |
| xdrs->x_op = XDR_FREE; |
| (void) xdr_opaque_auth (xdrs, &(msg.acpted_rply.ar_verf)); |
| } |
| } |
| |
| return status; |
| } |
| |
| static void |
| clntraw_geterr (CLIENT *cl, struct rpc_err *err) |
| { |
| } |
| |
| |
| static bool_t |
| clntraw_freeres (cl, xdr_res, res_ptr) |
| CLIENT *cl; |
| xdrproc_t xdr_res; |
| caddr_t res_ptr; |
| { |
| struct clntraw_private_s *clp = clntraw_private; |
| XDR *xdrs = &clp->xdr_stream; |
| bool_t rval; |
| |
| if (clp == NULL) |
| { |
| rval = (bool_t) RPC_FAILED; |
| return rval; |
| } |
| xdrs->x_op = XDR_FREE; |
| return (*xdr_res) (xdrs, res_ptr); |
| } |
| |
| static void |
| clntraw_abort (void) |
| { |
| } |
| |
| static bool_t |
| clntraw_control (CLIENT *cl, int i, char *c) |
| { |
| return FALSE; |
| } |
| |
| static void |
| clntraw_destroy (CLIENT *cl) |
| { |
| } |