Fix readonly/shared disk image labelling (rhbz #493692)

Daniel

.cvsignore

@@ -1 +1,9 @@
-libvirt-0.0.3.tar.gz
+.build*.log
+*.rpm
+i686
+x86_64
+libvirt-*.tar.gz
+libvirt-0.6.0.tar.gz
+libvirt-0.6.1.tar.gz
+libvirt-0.6.2.tar.gz
+libvirt-0.6.3.tar.gz

Makefile

@@ -3,4 +3,19 @@
 NAME := libvirt
 SPECFILE = $(firstword $(wildcard *.spec))
 
-include ../common/Makefile.common
+define find-makefile-common
+for d in common ../common ../../common ; do if [ -f $$d/Makefile.common ] ; then if [ -f $$d/CVS/Root -a -w $$/Makefile.common ] ; then cd $$d ; cvs -Q update ; fi ; echo "$$d/Makefile.common" ; break ; fi ; done
+endef
+
+MAKEFILE_COMMON := $(shell $(find-makefile-common))
+
+ifeq ($(MAKEFILE_COMMON),)
+# attempt a checkout
+define checkout-makefile-common
+test -f CVS/Root && { cvs -Q -d $$(cat CVS/Root) checkout common && echo "common/Makefile.common" ; } || { echo "ERROR: I can't figure out how to checkout the 'common' module." ; exit -1 ; } >&2
+endef
+
+MAKEFILE_COMMON := $(shell $(checkout-makefile-common))
+endif
+
+include $(MAKEFILE_COMMON)

libvirt-0.6.3-shared-readonly-label.patch

@@ -0,0 +1,76 @@
+diff -rup libvirt-0.6.2/src/security_selinux.c libvirt-0.6.2.new/src/security_selinux.c
+--- libvirt-0.6.2/src/security_selinux.c	2009-04-03 15:36:56.000000000 +0100
++++ libvirt-0.6.2.new/src/security_selinux.c	2009-05-05 13:39:42.000000000 +0100
+@@ -24,11 +24,12 @@
+ #include "virterror_internal.h"
+ #include "util.h"
+ #include "memory.h"
+-
++#include "logging.h"
+ 
+ #define VIR_FROM_THIS VIR_FROM_SECURITY
+ 
+ static char default_domain_context[1024];
++static char default_content_context[1024];
+ static char default_image_context[1024];
+ #define SECURITY_SELINUX_VOID_DOI       "0"
+ #define SECURITY_SELINUX_NAME "selinux"
+@@ -148,8 +149,13 @@ SELinuxInitialize(virConnectPtr conn)
+     close(fd);
+ 
+     ptr = strchrnul(default_image_context, '\n');
+-    *ptr = '\0';
+-
++    if (*ptr == '\n') {
++        *ptr = '\0';
++        strcpy(default_content_context, ptr+1);
++        ptr = strchrnul(default_content_context, '\n');
++        if (*ptr == '\n')
++            *ptr = '\0';
++    }
+     return 0;
+ }
+ 
+@@ -275,6 +281,8 @@ SELinuxSetFilecon(virConnectPtr conn, co
+ {
+     char ebuf[1024];
+ 
++    VIR_INFO("Setting SELinux context on '%s' to '%s'", path, tcon);
++
+     if(setfilecon(path, tcon) < 0) {
+         virSecurityReportError(conn, VIR_ERR_ERROR,
+                                _("%s: unable to set security context "
+@@ -299,6 +307,8 @@ SELinuxRestoreSecurityImageLabel(virConn
+     char *newpath = NULL;
+     const char *path = disk->src;
+ 
++    /* Don't restore labels on readoly/shared disks, because
++     * other VMs may still be accessing these */
+     if (disk->readonly || disk->shared)
+         return 0;
+ 
+@@ -328,8 +338,13 @@ SELinuxSetSecurityImageLabel(virConnectP
+ {
+     const virSecurityLabelDefPtr secdef = &vm->def->seclabel;
+ 
+-    if (secdef->imagelabel)
++    if (disk->shared) {
++        return SELinuxSetFilecon(conn, disk->src, default_image_context);
++    } else if (disk->readonly) {
++        return SELinuxSetFilecon(conn, disk->src, default_content_context);
++    } else if (secdef->imagelabel) {
+         return SELinuxSetFilecon(conn, disk->src, secdef->imagelabel);
++    }
+ 
+     return 0;
+ }
+@@ -403,9 +418,6 @@ SELinuxSetSecurityLabel(virConnectPtr co
+ 
+     if (secdef->imagelabel) {
+         for (i = 0 ; i < vm->def->ndisks ; i++) {
+-            if (vm->def->disks[i]->readonly ||
+-                vm->def->disks[i]->shared) continue;
+-
+             if (SELinuxSetSecurityImageLabel(conn, vm, vm->def->disks[i]) < 0)
+                 return -1;
+         }

libvirt-0.6.3-svirt-sound.patch

@@ -0,0 +1,33 @@
+--- src/qemu_conf.c.orig	2009-04-02 11:50:10.000000000 +0200
++++ src/qemu_conf.c	2009-04-03 17:46:59.000000000 +0200
+@@ -779,6 +779,20 @@ int qemudBuildCommandLine(virConnectPtr 
+     char domid[50];
+     char *pidfile;
+     const char *cpu = NULL;
++    int skipSound = 0;
++
++    if (driver->securityDriver &&
++        driver->securityDriver->name &&
++        STREQ(driver->securityDriver->name, "selinux") &&
++        getuid() == 0) {
++        static int soundWarned = 0; 
++        skipSound = 1;
++        if (def->nsounds &&
++            !soundWarned) {
++            soundWarned = 1;
++            VIR_WARN0("Sound cards for VMs are disabled while SELinux security model is active");
++        }
++    }
+ 
+     uname_normalize(&ut);
+ 
+@@ -1425,7 +1439,8 @@ int qemudBuildCommandLine(virConnectPtr 
+     }
+ 
+     /* Add sound hardware */
+-    if (def->nsounds) {
++    if (def->nsounds &&
++        !skipSound) {
+         int size = 100;
+         char *modstr;
+         if (VIR_ALLOC_N(modstr, size+1) < 0)

sources

@@ -1 +1 @@
-e4e635b6c366e4500ed708954d0914ba  libvirt-0.0.3.tar.gz
+dd618bf0943a0be853ccc08308c7f427  libvirt-0.6.3.tar.gz