File xsa178-0011-libxl-Rename-libxl__device_-nic-channel-_from_xs_be-.patch of Package xen.6121

References: bsc#979670 CVE-2016-4963 XSA-178

From 47ac7a8558135553ebb190fbfef3438ce16c3581 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ian.jackson@eu.citrix.com>
Date: Wed, 4 May 2016 16:18:36 +0100
Subject: [PATCH 11/21] libxl: Rename libxl__device_{nic,channel}_from_xs_be to
 _from_xenstore

We are going to change these functions to expect, and be passed, a
/libxl path.  So it is wrong that they are called _from_xs_be.

Neither function reads anything which isn't found in both places, so
we can and will change the call sites later.

The only remaining function in libxl called *_from_xs_be relates to
PCI devices, for which the backend domain is hardcoded to 0 throughout
the libxl_pci.c.

No functional change.

This is part of XSA-178.

Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>
---
 tools/libxl/libxl.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

Index: xen-4.4.4-testing/tools/libxl/libxl.c
===================================================================
--- xen-4.4.4-testing.orig/tools/libxl/libxl.c
+++ xen-4.4.4-testing/tools/libxl/libxl.c
@@ -3030,8 +3030,8 @@ out:
     return;
 }
 
-static int libxl__device_nic_from_xs_be(libxl__gc *gc,
-                                        const char *be_path,
+static int libxl__device_nic_from_xenstore(libxl__gc *gc,
+                                        const char *libxl_path,
                                         libxl_device_nic *nic)
 {
     const char *tmp;
@@ -3095,7 +3095,7 @@ int libxl_devid_to_device_nic(libxl_ctx
     if (!path)
         goto out;
 
-    rc = libxl__device_nic_from_xs_be(gc, path, nic);
+    rc = libxl__device_nic_from_xenstore(gc, path, nic);
     if (rc) goto out;
 
     rc = 0;
@@ -3130,7 +3130,7 @@ static int libxl__append_nic_list_of_typ
         for (; pnic < pnic_end; pnic++, dir++) {
             const char *p;
             p = libxl__sprintf(gc, "%s/%s", be_path, *dir);
-            rc = libxl__device_nic_from_xs_be(gc, p, pnic);
+            rc = libxl__device_nic_from_xenstore(gc, p, pnic);
             if (rc) goto out;
             pnic->backend_domid = 0;
         }