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[libvirt] [PATCH] qemu: Make sure permissions are set on VNC auto socket



This can cause permissions failures if qemu.conf user/group is changed.

Fix this by filling in the VNC auto socket path in the same code area
that we fill in default listen address, ports, etc.

https://bugzilla.redhat.com/show_bug.cgi?id=1151762
---
 src/qemu/qemu_command.c | 10 ++--------
 src/qemu/qemu_process.c | 11 ++++++++++-
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index ba15dc9..45fc63c 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -7544,7 +7544,6 @@ qemuBuildNumaArgStr(virQEMUDriverConfigPtr cfg,
 static int
 qemuBuildGraphicsVNCCommandLine(virQEMUDriverConfigPtr cfg,
                                 virCommandPtr cmd,
-                                virDomainDefPtr def,
                                 virQEMUCapsPtr qemuCaps,
                                 virDomainGraphicsDefPtr graphics)
 {
@@ -7561,12 +7560,7 @@ qemuBuildGraphicsVNCCommandLine(virQEMUDriverConfigPtr cfg,
         goto error;
     }
 
-    if (graphics->data.vnc.socket || cfg->vncAutoUnixSocket) {
-        if (!graphics->data.vnc.socket &&
-            virAsprintf(&graphics->data.vnc.socket,
-                        "%s/%s.vnc", cfg->libDir, def->name) == -1)
-            goto error;
-
+    if (graphics->data.vnc.socket) {
         virBufferAsprintf(&opt, "unix:%s", graphics->data.vnc.socket);
 
     } else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VNC_COLON)) {
@@ -7944,7 +7938,7 @@ qemuBuildGraphicsCommandLine(virQEMUDriverConfigPtr cfg,
         break;
 
     case VIR_DOMAIN_GRAPHICS_TYPE_VNC:
-        return qemuBuildGraphicsVNCCommandLine(cfg, cmd, def, qemuCaps, graphics);
+        return qemuBuildGraphicsVNCCommandLine(cfg, cmd, qemuCaps, graphics);
 
     case VIR_DOMAIN_GRAPHICS_TYPE_SPICE:
         return qemuBuildGraphicsSPICECommandLine(cfg, cmd, qemuCaps, graphics);
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 605b3c6..5de46e2 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -4479,7 +4479,16 @@ int qemuProcessStart(virConnectPtr conn,
                 goto cleanup;
         }
 
-        if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC ||
+        if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC &&
+            !graphics->data.vnc.socket &&
+            cfg->vncAutoUnixSocket) {
+            if (virAsprintf(&graphics->data.vnc.socket,
+                        "%s/%s.vnc", cfg->libDir, vm->def->name) < 0)
+                goto cleanup;
+        }
+
+        if ((graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC &&
+             !graphics->data.vnc.socket) ||
             graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE) {
             if (graphics->nListens == 0) {
                 if (VIR_EXPAND_N(graphics->listens, graphics->nListens, 1) < 0)
-- 
2.3.6


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