[libvirt] [PATCH] Fix naming of permission for detecting storage pools

[Daniel P. Berrange]

From: "Daniel P. Berrange" <berrange at redhat.com>

The VIR_ACCESS_PERM_CONNECT_DETECT_STORAGE_POOLS enum
constant had its string format be 'detect_storage_pool',
note the missing trailing 's'. This prevent the ACL
check from ever succeeding. Fix this and add a simple
test script to validate this problem of matching names.

Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
---
 src/Makefile.am            |  8 ++++-
 src/access/viraccessperm.c |  2 +-
 src/check-aclperms.pl      | 75 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 83 insertions(+), 2 deletions(-)
 create mode 100755 src/check-aclperms.pl

diff --git a/src/Makefile.am b/src/Makefile.am
index 711da32..9f9dcd9 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -528,10 +528,16 @@ check-aclrules:
 		$(REMOTE_PROTOCOL) \
 		$(addprefix $(srcdir)/,$(filter-out /%,$(STATEFUL_DRIVER_SOURCE_FILES)))
 
+check-aclperms:
+	$(AM_V_GEN)$(PERL) $(srcdir)/check-aclperms.pl \
+		$(srcdir)/access/viraccessperm.h \
+		$(srcdir)/access/viraccessperm.c
+
 EXTRA_DIST += check-driverimpls.pl check-aclrules.pl
 
 check-local: check-protocol check-symfile check-symsorting \
-	check-drivername check-driverimpls check-aclrules
+	check-drivername check-driverimpls check-aclrules \
+        check-aclperms
 .PHONY: check-protocol $(PROTOCOL_STRUCTS:structs=struct)
 
 # Mock driver, covering domains, storage, networks, etc
diff --git a/src/access/viraccessperm.c b/src/access/viraccessperm.c
index 9c720f9..d517c66 100644
--- a/src/access/viraccessperm.c
+++ b/src/access/viraccessperm.c
@@ -30,7 +30,7 @@ VIR_ENUM_IMPL(virAccessPermConnect,
               "search_storage_pools", "search_node_devices",
               "search_interfaces", "search_secrets",
               "search_nwfilters",
-              "detect_storage_pool", "pm_control",
+              "detect_storage_pools", "pm_control",
               "interface_transaction");
 
 VIR_ENUM_IMPL(virAccessPermDomain,
diff --git a/src/check-aclperms.pl b/src/check-aclperms.pl
new file mode 100755
index 0000000..b7fadcd
--- /dev/null
+++ b/src/check-aclperms.pl
@@ -0,0 +1,75 @@
+#!/usr/bin/perl
+#
+# Copyright (C) 2013 Red Hat, Inc.
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see
+# <http://www.gnu.org/licenses/>.
+#
+# This script just validates that the stringified version of
+# a virAccessPerm enum matches the enum constant name. We do
+# alot of auto-generation of code, so when these don't match
+# problems occur, preventing auth from succeeding at all.
+
+my $hdr = shift;
+my $impl = shift;
+
+my %perms;
+
+my @perms;
+
+open HDR, $hdr or die "cannot read $hdr: $!";
+
+while (<HDR>) {
+    if (/^\s+VIR_ACCESS_PERM_([_A-Z]+)(,?|\s|$)/) {
+        my $perm = $1;
+        
+        $perms{$perm} = 1 unless ($perm =~ /_LAST$/);
+    }
+}
+
+close HDR;
+
+
+open IMPL, $impl or die "cannot read $impl: $!";
+
+my $group;
+my $warned = 0;
+
+while (defined (my $line = <IMPL>)) {
+    if ($line =~ /VIR_ACCESS_PERM_([_A-Z]+)_LAST/) {
+        $group = $1;
+    } elsif ($line =~ /"[_a-z]+"/) {
+        my @bits = split /,/, $line;
+        foreach my $bit (@bits) {
+            if ($bit =~ /"([_a-z]+)"/) {
+                #print $1, "\n";
+                
+                my $perm = uc($group . "_" . $1);
+                if (!exists $perms{$perm}) {
+                    print STDERR "Unknown perm string $1 for group $group\n";
+                    $warned = 1;
+                }
+                delete $perms{$perm};
+            }
+        }
+    }
+}
+close IMPL;
+
+foreach my $perm (keys %perms) {
+    print STDERR "Perm $perm had not string form\n";
+    $warned = 1;
+}
+
+exit $warned;
-- 
1.8.3.1