From 2f01b63b5bd5679dffe1bbc9a3d275e402d0b005 Mon Sep 17 00:00:00 2001

From: "Richard W.M. Jones" <rjones@redhat.com>

Date: Thu, 2 Oct 2014 16:44:07 +0100

Subject: [PATCH] RHEL 7: Revert "launch: libvirt: Use qemu-bridge-helper to

 implement a full network (RHBZ#1148012)."

This reverts commit 224de20b9a8d5ea56f6337f19b4ca237bb88eca0.

---

 src/guestfs.pod      | 10 ----------

 src/launch-libvirt.c | 44 +++++++++++++++++++++-----------------------

 2 files changed, 21 insertions(+), 33 deletions(-)

diff --git a/src/guestfs.pod b/src/guestfs.pod

index 5792f15..25991ec 100644

--- a/src/guestfs.pod

+++ b/src/guestfs.pod

@@ -1398,16 +1398,6 @@ On Fedora, install C<kernel-debuginfo> for the C<vmlinux> file

 (containing symbols).  Make sure the symbols precisely match the

 kernel being used.

-=head3 network_bridge

-

-The libvirt backend supports:

-

- export LIBGUESTFS_BACKEND_SETTINGS=network_bridge=virbrX

-

-This allows you to override the bridge that is connected to when the

-network is enabled.  The default is C<virbr0>.  See also

-L</guestfs_set_network>.

-

 =head2 ATTACHING TO RUNNING DAEMONS

 I<Note (1):> This is B<highly experimental> and has a tendency to eat

diff --git a/src/launch-libvirt.c b/src/launch-libvirt.c

index f8f818a..706ae38 100644

--- a/src/launch-libvirt.c

+++ b/src/launch-libvirt.c

@@ -105,7 +105,6 @@ struct backend_libvirt_data {

   char *selinux_label;

   char *selinux_imagelabel;

   bool selinux_norelabel_disks;

-  char *network_bridge;

   char name[DOMAIN_NAME_LEN];   /* random name */

   bool is_kvm;                  /* false = qemu, true = kvm (from capabilities)*/

   unsigned long qemu_version;   /* qemu version (from libvirt) */

@@ -326,12 +325,6 @@ launch_libvirt (guestfs_h *g, void *datav, const char *libvirt_uri)

     guestfs_get_backend_setting (g, "internal_libvirt_imagelabel");

   data->selinux_norelabel_disks =

     guestfs___get_backend_setting_bool (g, "internal_libvirt_norelabel_disks");

-  if (g->enable_network) {

-    data->network_bridge =

-      guestfs_get_backend_setting (g, "network_bridge");

-    if (!data->network_bridge)

-      data->network_bridge = safe_strdup (g, "virbr0");

-  }

   guestfs_pop_error_handler (g);

   /* Locate and/or build the appliance. */

@@ -1243,19 +1236,6 @@ construct_libvirt_xml_devices (guestfs_h *g,

       } end_element ();

     } end_element ();

-    /* Connect to libvirt bridge (see: RHBZ#1148012). */

-    if (g->enable_network) {

-      start_element ("interface") {

-        attribute ("type", "bridge");

-        start_element ("source") {

-          attribute ("bridge", params->data->network_bridge);

-        } end_element ();

-        start_element ("model") {

-          attribute ("type", "virtio");

-        } end_element ();

-      } end_element ();

-    }

-

   } end_element (); /* </devices> */

   return 0;

@@ -1637,6 +1617,27 @@ construct_libvirt_xml_qemu_cmdline (guestfs_h *g,

       attribute ("value", tmpdir);

     } end_element ();

+    /* Workaround because libvirt user networking cannot specify "net="

+     * parameter.

+     */

+    if (g->enable_network) {

+      start_element ("qemu:arg") {

+        attribute ("value", "-netdev");

+      } end_element ();

+

+      start_element ("qemu:arg") {

+        attribute ("value", "user,id=usernet,net=169.254.0.0/16");

+      } end_element ();

+

+      start_element ("qemu:arg") {

+        attribute ("value", "-device");

+      } end_element ();

+

+      start_element ("qemu:arg") {

+        attribute ("value", VIRTIO_NET ",netdev=usernet");

+      } end_element ();

+    }

+

     /* The qemu command line arguments requested by the caller. */

     for (hp = g->hv_params; hp; hp = hp->next) {

       start_element ("qemu:arg") {

@@ -1706,9 +1707,6 @@ shutdown_libvirt (guestfs_h *g, void *datav, int check_for_errors)

   free (data->selinux_imagelabel);

   data->selinux_imagelabel = NULL;

-  free (data->network_bridge);

-  data->network_bridge = NULL;

-

   return ret;

 }

-- 

1.8.3.1