clnt_raw.c File Reference

#include <wintirpc.h>
#include <reentrant.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <rpc/rpc.h>
#include <rpc/raw.h>

Include dependency graph for clnt_raw.c:

Go to the source code of this file.

Classes
struct	clntraw_private

Macros
#define	MCALL_MSG_SIZE   24

Functions
static enum clnt_stat	clnt_raw_call (CLIENT *, rpcproc_t, xdrproc_t, void *, xdrproc_t, void *, struct timeval)
static void	clnt_raw_geterr (CLIENT *, struct rpc_err *)
static bool_t	clnt_raw_freeres (CLIENT *, xdrproc_t, void *)
static void	clnt_raw_abort (CLIENT *)
static bool_t	clnt_raw_control (CLIENT *, u_int, void *)
static void	clnt_raw_destroy (CLIENT *)
static struct clnt_ops *	clnt_raw_ops (void)
CLIENT *	clnt_raw_create (rpcprog_t prog, rpcvers_t vers)

Variables
mutex_t	clntraw_lock
static struct clntraw_private *	clntraw_private

Macro Definition Documentation

MCALL_MSG_SIZE

#define MCALL_MSG_SIZE   24

Definition at line 52 of file clnt_raw.c.

Function Documentation

clnt_raw_abort()

static void clnt_raw_abort ( CLIENT *  cl )

static

Definition at line 265 of file clnt_raw.c.

{
}

Referenced by clnt_raw_ops().

clnt_raw_call()

static enum clnt_stat clnt_raw_call ( CLIENT *  h, rpcproc_t  proc, xdrproc_t  xargs, void *  argsp, xdrproc_t  xresults, void *  resultsp, struct timeval  timeout  )

static

Definition at line 136 of file clnt_raw.c.

{
    struct clntraw_private *clp = clntraw_private;
    XDR *xdrs = &clp->xdr_stream;
    struct rpc_msg msg;
    enum clnt_stat status;
    struct rpc_err error;
 
    assert(h != NULL);
 
    mutex_lock(&clntraw_lock);
    if (clp == NULL) {
        mutex_unlock(&clntraw_lock);
        return (RPC_FAILED);
    }
    mutex_unlock(&clntraw_lock);
 
call_again:
    /*
     * send request
     */
    xdrs->x_op = XDR_ENCODE;
    XDR_SETPOS(xdrs, 0);
    clp->u.mashl_rpcmsg.rm_xid ++ ;
    if ((! XDR_PUTBYTES(xdrs, clp->u.mashl_callmsg, clp->mcnt)) ||
        (! XDR_PUTINT32(xdrs, (int32_t *)&proc)) ||
        (! AUTH_MARSHALL(h->cl_auth, xdrs, NULL)) ||
        (! (*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_common(FD_SETSIZE);
 
    /*
     * 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)) {
        /*
         * It's possible for xdr_replymsg() to fail partway
         * through its attempt to decode the result from the
         * server. If this happens, it will leave the reply
         * structure partially populated with dynamically
         * allocated memory. (This can happen if someone uses
         * clntudp_bufcreate() to create a CLIENT handle and
         * specifies a receive buffer size that is too small.)
         * This memory must be free()ed to avoid a leak.
         */
        int op = xdrs->x_op;
        xdrs->x_op = XDR_FREE;
        xdr_replymsg(xdrs, &msg);
        xdrs->x_op = op;
        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, 0)) {
            status = RPC_AUTHERROR;
        }
    }  /* end successful completion */
    else {
        if (AUTH_REFRESH(h->cl_auth, &msg))
            goto call_again;
    }  /* end of unsuccessful completion */
 
    if (status == RPC_SUCCESS) {
        if (! AUTH_VALIDATE(h->cl_auth, &msg.acpted_rply.ar_verf, 0)) {
            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);
}

Referenced by clnt_raw_ops().

clnt_raw_control()

static bool_t clnt_raw_control ( CLIENT *  cl, u_int  ui, void *  str  )

static

Definition at line 272 of file clnt_raw.c.

{
    return (FALSE);
}

Referenced by clnt_raw_ops().

clnt_raw_create()

CLIENT * clnt_raw_create	(	rpcprog_t	prog,
		rpcvers_t	vers
	)

Definition at line 81 of file clnt_raw.c.

{
    struct clntraw_private *clp;
    struct rpc_msg call_msg;
    XDR *xdrs;
    CLIENT  *client;
 
    mutex_lock(&clntraw_lock);
    clp = clntraw_private;
    if (clp == NULL) {
        clp = (struct clntraw_private *)calloc(1, sizeof (*clp));
        if (clp == NULL) {
            mutex_unlock(&clntraw_lock);
            return NULL;
        }
        if (__rpc_rawcombuf == NULL)
            __rpc_rawcombuf =
                (char *)calloc(UDPMSGSIZE, sizeof (char));
        clp->_raw_buf = __rpc_rawcombuf;
        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;
    /* XXX: prog and vers have been long historically :-( */
    call_msg.rm_call.cb_prog = (u_int32_t)prog;
    call_msg.rm_call.cb_vers = (u_int32_t)vers;
    xdrmem_create(xdrs, clp->u.mashl_callmsg, MCALL_MSG_SIZE, XDR_ENCODE); 
    if (! xdr_callhdr(xdrs, &call_msg))
        //warnx("clntraw_create - 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 = clnt_raw_ops();
    client->cl_auth = authnone_create();
    mutex_unlock(&clntraw_lock);
    return (client);
}

clnt_raw_destroy()

static void clnt_raw_destroy ( CLIENT *  cl )

static

Definition at line 282 of file clnt_raw.c.

{
}

Referenced by clnt_raw_ops().

clnt_raw_freeres()

static bool_t clnt_raw_freeres ( CLIENT *  cl, xdrproc_t  xdr_res, void *  res_ptr  )

static

Definition at line 243 of file clnt_raw.c.

{
    struct clntraw_private *clp = clntraw_private;
    XDR *xdrs = &clp->xdr_stream;
    bool_t rval;
 
    mutex_lock(&clntraw_lock);
    if (clp == NULL) {
        rval = (bool_t) RPC_FAILED;
        mutex_unlock(&clntraw_lock);
        return (rval);
    }
    mutex_unlock(&clntraw_lock);
    xdrs->x_op = XDR_FREE;
    return ((*xdr_res)(xdrs, res_ptr));
}

Referenced by clnt_raw_ops().

clnt_raw_geterr()

static void clnt_raw_geterr ( CLIENT *  cl, struct rpc_err *  err  )

static

Definition at line 234 of file clnt_raw.c.

{
}

Referenced by clnt_raw_ops().

clnt_raw_ops()

static struct clnt_ops * clnt_raw_ops ( void  )

static

Definition at line 288 of file clnt_raw.c.

{
    static struct clnt_ops ops;
    extern mutex_t  ops_lock;
 
    /* VARIABLES PROTECTED BY ops_lock: ops */
 
    mutex_lock(&ops_lock);
    if (ops.cl_call == NULL) {
        ops.cl_call = clnt_raw_call;
        ops.cl_abort = clnt_raw_abort;
        ops.cl_geterr = clnt_raw_geterr;
        ops.cl_freeres = clnt_raw_freeres;
        ops.cl_destroy = clnt_raw_destroy;
        ops.cl_control = clnt_raw_control;
    }
    mutex_unlock(&ops_lock);
    return (&ops);
}

Referenced by clnt_raw_create().

Variable Documentation

clntraw_lock

mutex_t clntraw_lock

extern

Definition at line 53 of file mt_misc.c.

Referenced by clnt_raw_create(), and clnt_raw_freeres().

clntraw_private

struct clntraw_private * clntraw_private

static