static enum clnt_stat
clnt_vc_call(CLIENT *cl, rpcproc_t proc, xdrproc_t xdr_args, void *args_ptr,
xdrproc_t xdr_results, void *results_ptr, struct timeval timeout)
{
struct ct_data *ct = (struct ct_data *) cl->cl_private;
XDR *xdrs = &(ct->ct_xdrs);
struct rpc_msg reply_msg;
u_int32_t x_id;
u_int32_t *msg_x_id = &ct->ct_u.ct_mcalli; /* yuk */
bool_t shipnow;
int refreshes = 2;
sigset_t mask, newmask;
int rpc_lock_value;
bool_t reply_stat;
assert(cl != NULL);
sigfillset(&newmask);
thr_sigsetmask(SIG_SETMASK, &newmask, &mask);
mutex_lock(&clnt_fd_lock);
while (vc_fd_locks[ct->ct_fd])
cond_wait(&vc_cv[ct->ct_fd], &clnt_fd_lock);
if (__isthreaded)
rpc_lock_value = 1;
else
rpc_lock_value = 0;
vc_fd_locks[ct->ct_fd] = rpc_lock_value;
mutex_unlock(&clnt_fd_lock);
if (!ct->ct_waitset) {
/* If time is not within limits, we ignore it. */
if (time_not_ok(&timeout) == FALSE)
ct->ct_wait = timeout;
}
shipnow =
(xdr_results == NULL && timeout.tv_sec == 0
&& timeout.tv_usec == 0) ? FALSE : TRUE;
call_again:
xdrs->x_op = XDR_ENCODE;
ct->ct_error.re_status = RPC_SUCCESS;
x_id = ntohl(--(*msg_x_id));
if (cl->cl_auth->ah_cred.oa_flavor != RPCSEC_GSS) {
if ((! XDR_PUTBYTES(xdrs, ct->ct_u.ct_mcallc, ct->ct_mpos)) ||
(! XDR_PUTINT32(xdrs, &proc)) ||
(! AUTH_MARSHALL(cl->cl_auth, xdrs)) ||
(! (*xdr_args)(xdrs, args_ptr))) {
if (ct->ct_error.re_status == RPC_SUCCESS)
ct->ct_error.re_status = RPC_CANTENCODEARGS;
(void)xdrrec_endofrecord(xdrs, TRUE);
release_fd_lock(ct->ct_fd, mask);
return (ct->ct_error.re_status);
}
} else {
*(uint32_t *) &ct->ct_u.ct_mcallc[ct->ct_mpos] = htonl(proc);
if (! __rpc_gss_wrap(cl->cl_auth, ct->ct_u.ct_mcallc,
ct->ct_mpos + sizeof(uint32_t),
xdrs, xdr_args, args_ptr)) {
if (ct->ct_error.re_status == RPC_SUCCESS)
ct->ct_error.re_status = RPC_CANTENCODEARGS;
(void)xdrrec_endofrecord(xdrs, TRUE);
release_fd_lock(ct->ct_fd, mask);
return (ct->ct_error.re_status);
}
}
if (! xdrrec_endofrecord(xdrs, shipnow)) {
release_fd_lock(ct->ct_fd, mask);
return (ct->ct_error.re_status = RPC_CANTSEND);
}
if (! shipnow) {
release_fd_lock(ct->ct_fd, mask);
return (RPC_SUCCESS);
}
/*
* Hack to provide rpc-based message passing
*/
if (timeout.tv_sec == 0 && timeout.tv_usec == 0) {
release_fd_lock(ct->ct_fd, mask);
return(ct->ct_error.re_status = RPC_TIMEDOUT);
}
/*
* Keep receiving until we get a valid transaction id
*/
xdrs->x_op = XDR_DECODE;
while (TRUE) {
reply_msg.acpted_rply.ar_verf = _null_auth;
reply_msg.acpted_rply.ar_results.where = NULL;
reply_msg.acpted_rply.ar_results.proc = (xdrproc_t)xdr_void;
if (! xdrrec_skiprecord(xdrs)) {
release_fd_lock(ct->ct_fd, mask);
return (ct->ct_error.re_status);
}
/* now decode and validate the response header */
if (! xdr_replymsg(xdrs, &reply_msg)) {
if (ct->ct_error.re_status == RPC_SUCCESS)
continue;
release_fd_lock(ct->ct_fd, mask);
return (ct->ct_error.re_status);
}
if (reply_msg.rm_xid == x_id)
break;
}
/*
* process header
*/
_seterr_reply(&reply_msg, &(ct->ct_error));
if (ct->ct_error.re_status == RPC_SUCCESS) {
if (! AUTH_VALIDATE(cl->cl_auth,
&reply_msg.acpted_rply.ar_verf)) {
ct->ct_error.re_status = RPC_AUTHERROR;
ct->ct_error.re_why = AUTH_INVALIDRESP;
} else {
if (cl->cl_auth->ah_cred.oa_flavor != RPCSEC_GSS) {
reply_stat = (*xdr_results)(xdrs, results_ptr);
} else {
reply_stat = __rpc_gss_unwrap(cl->cl_auth,
xdrs, xdr_results, results_ptr);
}
if (! reply_stat) {
if (ct->ct_error.re_status == RPC_SUCCESS)
ct->ct_error.re_status =
RPC_CANTDECODERES;
}
}
/* free verifier ... */
if (reply_msg.acpted_rply.ar_verf.oa_base != NULL) {
xdrs->x_op = XDR_FREE;
(void)xdr_opaque_auth(xdrs,
&(reply_msg.acpted_rply.ar_verf));
}
} /* end successful completion */
else {
/* maybe our credentials need to be refreshed ... */
if (refreshes-- && AUTH_REFRESH(cl->cl_auth, &reply_msg))
goto call_again;
} /* end of unsuccessful completion */
release_fd_lock(ct->ct_fd, mask);
return (ct->ct_error.re_status);
}
static bool_t
clnt_vc_control(CLIENT *cl, u_int request, void *info)
{
struct ct_data *ct;
void *infop = info;
sigset_t mask;
sigset_t newmask;
int rpc_lock_value;
assert(cl != NULL);
ct = (struct ct_data *)cl->cl_private;
sigfillset(&newmask);
thr_sigsetmask(SIG_SETMASK, &newmask, &mask);
mutex_lock(&clnt_fd_lock);
while (vc_fd_locks[ct->ct_fd])
cond_wait(&vc_cv[ct->ct_fd], &clnt_fd_lock);
if (__isthreaded)
rpc_lock_value = 1;
else
rpc_lock_value = 0;
vc_fd_locks[ct->ct_fd] = rpc_lock_value;
mutex_unlock(&clnt_fd_lock);
switch (request) {
case CLSET_FD_CLOSE:
ct->ct_closeit = TRUE;
release_fd_lock(ct->ct_fd, mask);
return (TRUE);
case CLSET_FD_NCLOSE:
ct->ct_closeit = FALSE;
release_fd_lock(ct->ct_fd, mask);
return (TRUE);
default:
break;
}
/* for other requests which use info */
if (info == NULL) {
release_fd_lock(ct->ct_fd, mask);
return (FALSE);
}
switch (request) {
case CLSET_TIMEOUT:
if (time_not_ok((struct timeval *)info)) {
release_fd_lock(ct->ct_fd, mask);
return (FALSE);
}
ct->ct_wait = *(struct timeval *)infop;
ct->ct_waitset = TRUE;
break;
case CLGET_TIMEOUT:
*(struct timeval *)infop = ct->ct_wait;
break;
case CLGET_SERVER_ADDR:
(void) memcpy(info, ct->ct_addr.buf, (size_t)ct->ct_addr.len);
break;
case CLGET_FD:
*(int *)info = ct->ct_fd;
break;
case CLGET_SVC_ADDR:
/* The caller should not free this memory area */
*(struct netbuf *)info = ct->ct_addr;
break;
case CLSET_SVC_ADDR: /* set to new address */
release_fd_lock(ct->ct_fd, mask);
return (FALSE);
case CLGET_XID:
/*
* use the knowledge that xid is the
* first element in the call structure
* This will get the xid of the PREVIOUS call
*/
*(u_int32_t *)info =
ntohl(*(u_int32_t *)(void *)&ct->ct_u.ct_mcalli);
break;
case CLSET_XID:
/* This will set the xid of the NEXT call */
*(u_int32_t *)(void *)&ct->ct_u.ct_mcalli =
htonl(*((u_int32_t *)info) + 1);
/* increment by 1 as clnt_vc_call() decrements once */
break;
case CLGET_VERS:
/*
* This RELIES on the information that, in the call body,
* the version number field is the fifth field from the
* begining of the RPC header. MUST be changed if the
* call_struct is changed
*/
*(u_int32_t *)info =
ntohl(*(u_int32_t *)(void *)(ct->ct_u.ct_mcallc +
4 * BYTES_PER_XDR_UNIT));
break;
case CLSET_VERS:
*(u_int32_t *)(void *)(ct->ct_u.ct_mcallc +
4 * BYTES_PER_XDR_UNIT) =
htonl(*(u_int32_t *)info);
break;
case CLGET_PROG:
/*
* This RELIES on the information that, in the call body,
* the program number field is the fourth field from the
* begining of the RPC header. MUST be changed if the
* call_struct is changed
*/
*(u_int32_t *)info =
ntohl(*(u_int32_t *)(void *)(ct->ct_u.ct_mcallc +
3 * BYTES_PER_XDR_UNIT));
break;
case CLSET_PROG:
*(u_int32_t *)(void *)(ct->ct_u.ct_mcallc +
3 * BYTES_PER_XDR_UNIT) =
htonl(*(u_int32_t *)info);
break;
default:
release_fd_lock(ct->ct_fd, mask);
return (FALSE);
}
release_fd_lock(ct->ct_fd, mask);
return (TRUE);
}
static enum clnt_stat
clnt_vc_call(
CLIENT *h,
rpcproc_t proc,
xdrproc_t xdr_args,
const char *args_ptr,
xdrproc_t xdr_results,
caddr_t results_ptr,
struct timeval timeout
)
{
struct ct_data *ct;
XDR *xdrs;
struct rpc_msg reply_msg;
u_int32_t x_id;
u_int32_t *msg_x_id;
bool_t shipnow;
int refreshes = 2;
#ifdef _REENTRANT
sigset_t mask, newmask;
#endif
_DIAGASSERT(h != NULL);
ct = (struct ct_data *) h->cl_private;
#ifdef _REENTRANT
__clnt_sigfillset(&newmask);
thr_sigsetmask(SIG_SETMASK, &newmask, &mask);
mutex_lock(&clnt_fd_lock);
while (vc_fd_locks[ct->ct_fd])
cond_wait(&vc_cv[ct->ct_fd], &clnt_fd_lock);
vc_fd_locks[ct->ct_fd] = __rpc_lock_value;
mutex_unlock(&clnt_fd_lock);
#endif
xdrs = &(ct->ct_xdrs);
msg_x_id = &ct->ct_u.ct_mcalli;
if (!ct->ct_waitset) {
if (time_not_ok(&timeout) == FALSE)
ct->ct_wait = timeout;
}
shipnow =
(xdr_results == NULL && timeout.tv_sec == 0
&& timeout.tv_usec == 0) ? FALSE : TRUE;
call_again:
xdrs->x_op = XDR_ENCODE;
ct->ct_error.re_status = RPC_SUCCESS;
x_id = ntohl(--(*msg_x_id));
if ((! XDR_PUTBYTES(xdrs, ct->ct_u.ct_mcallc, ct->ct_mpos)) ||
(! XDR_PUTINT32(xdrs, (int32_t *)&proc)) ||
(! AUTH_MARSHALL(h->cl_auth, xdrs)) ||
(! (*xdr_args)(xdrs, __UNCONST(args_ptr)))) {
if (ct->ct_error.re_status == RPC_SUCCESS)
ct->ct_error.re_status = RPC_CANTENCODEARGS;
(void)xdrrec_endofrecord(xdrs, TRUE);
release_fd_lock(ct->ct_fd, mask);
return (ct->ct_error.re_status);
}
if (! xdrrec_endofrecord(xdrs, shipnow)) {
release_fd_lock(ct->ct_fd, mask);
return (ct->ct_error.re_status = RPC_CANTSEND);
}
if (! shipnow) {
release_fd_lock(ct->ct_fd, mask);
return (RPC_SUCCESS);
}
/*
* Hack to provide rpc-based message passing
*/
if (timeout.tv_sec == 0 && timeout.tv_usec == 0) {
release_fd_lock(ct->ct_fd, mask);
return(ct->ct_error.re_status = RPC_TIMEDOUT);
}
/*
* Keep receiving until we get a valid transaction id
*/
xdrs->x_op = XDR_DECODE;
for (;;) {
reply_msg.acpted_rply.ar_verf = _null_auth;
reply_msg.acpted_rply.ar_results.where = NULL;
reply_msg.acpted_rply.ar_results.proc = (xdrproc_t)xdr_void;
if (! xdrrec_skiprecord(xdrs)) {
release_fd_lock(ct->ct_fd, mask);
return (ct->ct_error.re_status);
}
/* now decode and validate the response header */
if (! xdr_replymsg(xdrs, &reply_msg)) {
if (ct->ct_error.re_status == RPC_SUCCESS)
continue;
release_fd_lock(ct->ct_fd, mask);
return (ct->ct_error.re_status);
}
if (reply_msg.rm_xid == x_id)
break;
}
/*
* process header
*/
_seterr_reply(&reply_msg, &(ct->ct_error));
if (ct->ct_error.re_status == RPC_SUCCESS) {
if (! AUTH_VALIDATE(h->cl_auth,
&reply_msg.acpted_rply.ar_verf)) {
ct->ct_error.re_status = RPC_AUTHERROR;
ct->ct_error.re_why = AUTH_INVALIDRESP;
} else if (! (*xdr_results)(xdrs, results_ptr)) {
if (ct->ct_error.re_status == RPC_SUCCESS)
ct->ct_error.re_status = RPC_CANTDECODERES;
}
/* free verifier ... */
if (reply_msg.acpted_rply.ar_verf.oa_base != NULL) {
xdrs->x_op = XDR_FREE;
(void)xdr_opaque_auth(xdrs,
&(reply_msg.acpted_rply.ar_verf));
}
} /* end successful completion */
else {
/* maybe our credentials need to be refreshed ... */
if (refreshes-- && AUTH_REFRESH(h->cl_auth))
goto call_again;
} /* end of unsuccessful completion */
release_fd_lock(ct->ct_fd, mask);
return (ct->ct_error.re_status);
}
