| |
| /* |
| * Copyright (c) 2009, Sun Microsystems, Inc. |
| * All rights reserved. |
| * |
| * 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 Sun Microsystems, 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. |
| */ |
| /* |
| * Copyright (c) 1986-1991 by Sun Microsystems Inc. |
| */ |
| |
| /* |
| * rpcb_prot.c |
| * XDR routines for the rpcbinder version 3. |
| * |
| * Copyright (C) 1984, 1988, Sun Microsystems, Inc. |
| */ |
| |
| #include <config.h> |
| #include <rpc/rpc.h> |
| #include <rpc/types.h> |
| #include <rpc/xdr.h> |
| #include <rpc/rpcb_prot.h> |
| |
| bool |
| xdr_rpcb(XDR *xdrs, RPCB *objp) |
| { |
| if (!xdr_u_int32_t(xdrs, &objp->r_prog)) |
| return (false); |
| if (!xdr_u_int32_t(xdrs, &objp->r_vers)) |
| return (false); |
| if (!xdr_string(xdrs, &objp->r_netid, (u_int) ~ 0)) |
| return (false); |
| if (!xdr_string(xdrs, &objp->r_addr, (u_int) ~ 0)) |
| return (false); |
| if (!xdr_string(xdrs, &objp->r_owner, (u_int) ~ 0)) |
| return (false); |
| return (true); |
| } |
| |
| /* |
| * rpcblist_ptr implements a linked list. The RPCL definition from |
| * rpcb_prot.x is: |
| * |
| * struct rpcblist { |
| * rpcb rpcb_map; |
| * struct rpcblist *rpcb_next; |
| * }; |
| * typedef rpcblist *rpcblist_ptr; |
| * |
| * Recall that "pointers" in XDR are encoded as a boolean, indicating whether |
| * there's any data behind the pointer, followed by the data (if any exists). |
| * The boolean can be interpreted as ``more data follows me''; if false then |
| * nothing follows the boolean; if true then the boolean is followed by an |
| * actual struct rpcb, and another rpcblist_ptr (declared in RPCL as "struct |
| * rpcblist *"). |
| * |
| * This could be implemented via the xdr_pointer type, though this would |
| * result in one recursive call per element in the list. Rather than do that |
| * we can ``unwind'' the recursion into a while loop and use xdr_reference to |
| * serialize the rpcb elements. |
| */ |
| |
| bool |
| xdr_rpcblist_ptr(XDR *xdrs, rpcblist_ptr *rp) |
| { |
| /* |
| * more_elements is pre-computed in case the direction is |
| * XDR_ENCODE or XDR_FREE. more_elements is overwritten by |
| * xdr_bool when the direction is XDR_DECODE. |
| */ |
| bool_t more_elements; |
| int freeing = (xdrs->x_op == XDR_FREE); |
| rpcblist_ptr next; |
| rpcblist_ptr next_copy; |
| |
| next = NULL; |
| for (;;) { |
| more_elements = (bool_t) (*rp != NULL); |
| if (!xdr_bool(xdrs, &more_elements)) { |
| return (false); |
| } |
| if (!more_elements) { |
| return (true); /* we are done */ |
| } |
| /* |
| * the unfortunate side effect of non-recursion is that in |
| * the case of freeing we must remember the next object |
| * before we free the current object ... |
| */ |
| if (freeing) |
| next = (*rp)->rpcb_next; |
| if (!xdr_reference |
| (xdrs, (caddr_t *) rp, (u_int) sizeof(rpcblist), |
| (xdrproc_t) xdr_rpcb)) { |
| return (false); |
| } |
| if (freeing) { |
| next_copy = next; |
| rp = &next_copy; |
| /* |
| * Note that in the subsequent iteration, next_copy |
| * gets nulled out by the xdr_reference |
| * but next itself survives. |
| */ |
| } else { |
| rp = &((*rp)->rpcb_next); |
| } |
| } |
| /*NOTREACHED*/} |
| |
| /* |
| * xdr_rpcblist() is specified to take a RPCBLIST **, but is identical in |
| * functionality to xdr_rpcblist_ptr(). |
| */ |
| bool |
| xdr_rpcblist(XDR *xdrs, RPCBLIST **rp) |
| { |
| bool dummy; |
| |
| dummy = xdr_rpcblist_ptr(xdrs, (rpcblist_ptr *) rp); |
| return (dummy); |
| } |
| |
| bool |
| xdr_rpcb_entry(XDR *xdrs, rpcb_entry *objp) |
| { |
| if (!xdr_string(xdrs, &objp->r_maddr, (u_int) ~ 0)) |
| return (false); |
| if (!xdr_string(xdrs, &objp->r_nc_netid, (u_int) ~ 0)) |
| return (false); |
| if (!xdr_u_int32_t(xdrs, &objp->r_nc_semantics)) |
| return (false); |
| if (!xdr_string(xdrs, &objp->r_nc_protofmly, (u_int) ~ 0)) |
| return (false); |
| if (!xdr_string(xdrs, &objp->r_nc_proto, (u_int) ~ 0)) |
| return (false); |
| return (true); |
| } |
| |
| bool |
| xdr_rpcb_entry_list_ptr(XDR *xdrs, rpcb_entry_list_ptr *rp) |
| { |
| /* |
| * more_elements is pre-computed in case the direction is |
| * XDR_ENCODE or XDR_FREE. more_elements is overwritten by |
| * xdr_bool when the direction is XDR_DECODE. |
| */ |
| bool_t more_elements; |
| int freeing = (xdrs->x_op == XDR_FREE); |
| rpcb_entry_list_ptr next; |
| rpcb_entry_list_ptr next_copy; |
| |
| next = NULL; |
| for (;;) { |
| more_elements = (bool_t) (*rp != NULL); |
| if (!xdr_bool(xdrs, &more_elements)) { |
| return (false); |
| } |
| if (!more_elements) { |
| return (true); /* we are done */ |
| } |
| /* |
| * the unfortunate side effect of non-recursion is that in |
| * the case of freeing we must remember the next object |
| * before we free the current object ... |
| */ |
| if (freeing) |
| next = (*rp)->rpcb_entry_next; |
| if (!xdr_reference |
| (xdrs, (caddr_t *) rp, (u_int) sizeof(rpcb_entry_list), |
| (xdrproc_t) xdr_rpcb_entry)) { |
| return (false); |
| } |
| if (freeing) { |
| next_copy = next; |
| rp = &next_copy; |
| /* |
| * Note that in the subsequent iteration, next_copy |
| * gets nulled out by the xdr_reference |
| * but next itself survives. |
| */ |
| } else { |
| rp = &((*rp)->rpcb_entry_next); |
| } |
| } |
| /*NOTREACHED*/} |
| |
| /* |
| * XDR remote call arguments |
| * written for XDR_ENCODE direction only |
| */ |
| bool |
| xdr_rpcb_rmtcallargs(XDR *xdrs, struct rpcb_rmtcallargs *p) |
| { |
| struct r_rpcb_rmtcallargs *objp = |
| (struct r_rpcb_rmtcallargs *)(void *)p; |
| u_int lenposition, argposition, position; |
| int32_t *buf; |
| |
| buf = XDR_INLINE(xdrs, 3 * BYTES_PER_XDR_UNIT); |
| if (buf == NULL) { |
| if (!xdr_u_int32_t(xdrs, &objp->prog)) { |
| return (false); |
| } |
| if (!xdr_u_int32_t(xdrs, &objp->vers)) { |
| return (false); |
| } |
| if (!xdr_u_int32_t(xdrs, &objp->proc)) { |
| return (false); |
| } |
| } else { |
| IXDR_PUT_U_INT32(buf, objp->prog); |
| IXDR_PUT_U_INT32(buf, objp->vers); |
| IXDR_PUT_U_INT32(buf, objp->proc); |
| } |
| |
| /* |
| * All the jugglery for just getting the size of the arguments |
| */ |
| lenposition = XDR_GETPOS(xdrs); |
| if (!xdr_u_int(xdrs, &(objp->args.args_len))) |
| return (false); |
| argposition = XDR_GETPOS(xdrs); |
| if (!(*objp->xdr_args) (xdrs, objp->args.args_val)) |
| return (false); |
| position = XDR_GETPOS(xdrs); |
| objp->args.args_len = |
| (u_int) ((u_long) position - (u_long) argposition); |
| XDR_SETPOS(xdrs, lenposition); |
| if (!xdr_u_int(xdrs, &(objp->args.args_len))) |
| return (false); |
| XDR_SETPOS(xdrs, position); |
| return (true); |
| } |
| |
| /* |
| * XDR remote call results |
| * written for XDR_DECODE direction only |
| */ |
| bool |
| xdr_rpcb_rmtcallres(XDR *xdrs, struct rpcb_rmtcallres *p) |
| { |
| bool dummy; |
| struct r_rpcb_rmtcallres *objp = (struct r_rpcb_rmtcallres *)(void *)p; |
| |
| if (!xdr_string(xdrs, &objp->addr, (u_int) ~ 0)) |
| return (false); |
| if (!xdr_u_int(xdrs, &objp->results.results_len)) |
| return (false); |
| dummy = (*(objp->xdr_res)) (xdrs, objp->results.results_val); |
| return (dummy); |
| } |
| |
| bool |
| xdr_netbuf(XDR *xdrs, struct netbuf *objp) |
| { |
| bool dummy; |
| |
| if (!xdr_u_int32_t(xdrs, (u_int32_t *) & objp->maxlen)) { |
| return (false); |
| } |
| dummy = |
| xdr_bytes(xdrs, (char **)&(objp->buf), (u_int *) & (objp->len), |
| objp->maxlen); |
| return (dummy); |
| } |