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From 98189cd7e622bb89ee4916307c1287d97487233a Mon Sep 17 00:00:00 2001
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Message-Id: <98189cd7e622bb89ee4916307c1287d97487233a@dist-git>
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From: Erik Skultety <eskultet@redhat.com>
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Date: Tue, 9 Apr 2019 08:34:34 +0200
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Subject: [PATCH] security: dac: gfx: egl-headless: Relabel the DRI device
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Just like for SPICE, we need to change the permissions on the DRI device
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used as the @rendernode for egl-headless graphics type.
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Signed-off-by: Erik Skultety <eskultet@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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(cherry picked from commit ae00e73cfe91b76849712fb7d928cfefef39a6eb)
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https://bugzilla.redhat.com/show_bug.cgi?id=1628892
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Signed-off-by: Erik Skultety <eskultet@redhat.com>
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Conflicts:
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src/security/security_dac.c
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v4.7.0-58-g3ac7793ad1 was not backported
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Message-Id: <f564d1859c197fb7477e49ce801124e0cc2d506f.1554791287.git.eskultet@redhat.com>
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Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
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---
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src/security/security_dac.c | 15 +++++++--------
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1 file changed, 7 insertions(+), 8 deletions(-)
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diff --git a/src/security/security_dac.c b/src/security/security_dac.c
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index 74c70dd092..cc2ed10157 100644
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--- a/src/security/security_dac.c
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+++ b/src/security/security_dac.c
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@@ -1419,11 +1419,16 @@ virSecurityDACSetGraphicsLabel(virSecurityManagerPtr mgr,
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virDomainGraphicsDefPtr gfx)
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{
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+ const char *rendernode = virDomainGraphicsGetRenderNode(gfx);
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virSecurityDACDataPtr priv = virSecurityManagerGetPrivateData(mgr);
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virSecurityLabelDefPtr seclabel;
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uid_t user;
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gid_t group;
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+ /* There's nothing to relabel */
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+ if (!rendernode)
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+ return 0;
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+
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/* Skip chowning the shared render file if namespaces are disabled */
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if (!priv->mountNamespace)
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return 0;
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@@ -1435,14 +1440,8 @@ virSecurityDACSetGraphicsLabel(virSecurityManagerPtr mgr,
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if (virSecurityDACGetIds(seclabel, priv, &user, &group, NULL, NULL) < 0)
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return -1;
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- if (gfx->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE &&
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- gfx->data.spice.gl == VIR_TRISTATE_BOOL_YES &&
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- gfx->data.spice.rendernode) {
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- if (virSecurityDACSetOwnership(priv, NULL,
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- gfx->data.spice.rendernode,
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- user, group) < 0)
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- return -1;
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- }
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+ if (virSecurityDACSetOwnership(priv, NULL, rendernode, user, group) < 0)
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+ return -1;
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return 0;
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}
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--
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2.21.0
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