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xdr: header cleanup

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#16047 notes that include/os/freebsd/spl/rpc/xdr.h carried an
(apparently) incompatible license. While looking into it, it seems that
this file is actually unnecessary these days - FreeBSD's kernel XDR has
XDR_CONTROL, xdrmem_control and XDR_GET_BYTES_AVAIL, while userspace has
XDR_CONTROL and xdrmem_control, and our implementation of
XDR_GET_BYTES_AVAIL for libspl works nicely with it. So this removes
that file outright.

To keep the includes in nvpair.c tidy, I've made a few small adjustments
to the Linux headers. By definition, rpc/types.h provides bool_t and is
included before rpc/xdr.h, so I've created rpc/types.h for Linux. This
isn't necessary for userspace; both FreeBSD native and tirpc on Linux
already have these headers set up correctly.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/
Closes #16047 
Closes #16051
This commit is contained in:
Rob N
2024-04-04 09:13:27 +11:00
committed by GitHub
parent b12738182c
commit a9a4290173
7 changed files with 33 additions and 75 deletions
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include/os/freebsd/spl/rpc/xdr.h
-71
View File
@@ -1,71 +0,0 @@
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
#ifndef _OPENSOLARIS_RPC_XDR_H_
#define _OPENSOLARIS_RPC_XDR_H_
#include <rpc/types.h>
#include_next <rpc/xdr.h>
#if !defined(_KERNEL) && !defined(_STANDALONE)
#include <assert.h>
/*
* Taken from sys/xdr/xdr_mem.c.
*
* FreeBSD's userland XDR doesn't implement control method (only the kernel),
* but OpenSolaris nvpair still depend on it, so we have to implement it here.
*/
static __inline bool_t
xdrmem_control(XDR *xdrs, int request, void *info)
{
xdr_bytesrec *xptr;
switch (request) {
case XDR_GET_BYTES_AVAIL:
xptr = (xdr_bytesrec *)info;
xptr->xc_is_last_record = TRUE;
xptr->xc_num_avail = xdrs->x_handy;
return (TRUE);
default:
assert(!"unexpected request");
}
return (FALSE);
}
#undef XDR_CONTROL
#define XDR_CONTROL(xdrs, req, op) \
(((xdrs)->x_ops->x_control == NULL) ? \
xdrmem_control((xdrs), (req), (op)) : \
(*(xdrs)->x_ops->x_control)(xdrs, req, op))
#endif /* !_KERNEL && !_STANDALONE */
#endif /* !_OPENSOLARIS_RPC_XDR_H_ */