Ticket History #7593: Implement support for xdr_u_quad_t in gssrpc

GLibc introduced support for xdr_u_quad_t which encodes a 64 bit
unsigned integer.
This is quite handy given 64 bit unsigned quantities are quite common
these days on 64bit machines.

Attached find a possible implementation, I built it for the gss-proxy
project that transitioned from using glibc's rpc library to gssrpc.

From 472b7b49ed79f65f1e94c47bb58fb41f709eb287 Mon Sep 17 00:00:00 2001
From: Simo Sorce <simo@redhat.com>
Date: Fri, 01 Mar 2013 00:58:44 +0000
Subject: Add custom implementation of xdr_uint64_t

This is needed because gssrpc doesn't have one.
---
diff --git a/proxy/Makefile.am b/proxy/Makefile.am
index 529de6d..e1adef0 100644
--- a/proxy/Makefile.am
+++ b/proxy/Makefile.am
@@ -85,7 +85,7 @@ if BUILD_SELINUX
GSS_PROXY_LIBS += $(SELINUX_LIBS)
endif

-GP_RPCGEN_OBJ = rpcgen/gp_rpc_xdr.c rpcgen/gss_proxy_xdr.c
+GP_RPCGEN_OBJ = rpcgen/gp_rpc_xdr.c rpcgen/gss_proxy_xdr.c rpcgen/gp_xdr.c
GP_RPCCLI_OBJ = \
src/client/gpm_display_status.c \
src/client/gpm_accept_sec_context.c \
@@ -116,6 +116,7 @@ GP_MECHGLUE_OBJ = \

dist_noinst_HEADERS = \
rpcgen/gp_rpc.h \
+ rpcgen/gp_xdr.h \
rpcgen/gss_proxy.h \
src/gp_rpc_process.h \
src/gp_proxy.h \
diff --git a/proxy/rpcgen/gp_xdr.c b/proxy/rpcgen/gp_xdr.c
new file mode 100644
index 0000000..2670212
--- /dev/null
+++ b/proxy/rpcgen/gp_xdr.c
@@ -0,0 +1,52 @@
+/*
+ GSS-PROXY
+
+ Copyright (C) 2013 Red Hat, Inc.
+ Copyright (C) 2013 Simo Sorce <simo@redhat.com>
+
+ Permission is hereby granted, free of charge, to any person obtaining a
+ copy of this software and associated documentation files (the "Software"),
+ to deal in the Software without restriction, including without limitation
+ the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ and/or sell copies of the Software, and to permit persons to whom the
+ Software is furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ DEALINGS IN THE SOFTWARE.
+*/
+
+#include "rpcgen/gp_xdr.h"
+
+bool_t gp_xdr_uint64_t(XDR *xdrs, uint64_t *objp)
+{
+ uint32_t h;
+ uint32_t l;
+
+ switch(xdrs->x_op) {
+ case XDR_ENCODE:
+ h = (uint32_t)((*objp) >> 32);
+ l = (uint32_t)(*objp);
+ if (!xdr_u_int32(xdrs, &h) || !xdr_u_int32(xdrs, &l)) {
+ return FALSE;
+ }
+ return TRUE;
+ case XDR_DECODE:
+ if (!xdr_u_int32(xdrs, &h) || !xdr_u_int32(xdrs, &l)) {
+ return FALSE;
+ }
+ *objp = (((uint64_t)h) << 32) | l;
+ return TRUE;
+ case XDR_FREE:
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
diff --git a/proxy/rpcgen/gp_xdr.h b/proxy/rpcgen/gp_xdr.h
new file mode 100644
index 0000000..0d4304d
--- /dev/null
+++ b/proxy/rpcgen/gp_xdr.h
@@ -0,0 +1,35 @@
+/*
+ GSS-PROXY
+
+ Copyright (C) 2013 Red Hat, Inc.
+ Copyright (C) 2013 Simo Sorce <simo@redhat.com>
+
+ Permission is hereby granted, free of charge, to any person obtaining a
+ copy of this software and associated documentation files (the "Software"),
+ to deal in the Software without restriction, including without limitation
+ the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ and/or sell copies of the Software, and to permit persons to whom the
+ Software is furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ DEALINGS IN THE SOFTWARE.
+*/
+
+#ifndef _GP_XDR_H_
+#define _GP_XDR_H_
+
+#include "gssrpc/rpc.h"
+
+#define xdr_u_quad_t gp_xdr_uint64_t
+
+bool_t gp_xdr_uint64_t(XDR *xdrs, uint64_t *objp);
+
+#endif /* _GP_XDR_H_ */
diff --git a/proxy/rpcgen/gss_proxy_xdr.c b/proxy/rpcgen/gss_proxy_xdr.c
index 576b9c9..215761d 100644
--- a/proxy/rpcgen/gss_proxy_xdr.c
+++ b/proxy/rpcgen/gss_proxy_xdr.c
@@ -3,6 +3,7 @@
* It was generated using rpcgen.
*/

+#include "rpcgen/gp_xdr.h"
#include "rpcgen/gss_proxy.h"

bool_t
--
cgit v0.9.1