ovs-pki: Unique subject DNs for certificate requests.

Some applications expect subject DNs to be unique.

Bug #13609.
Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>

diff --git a/utilities/ovs-pki.in b/utilities/ovs-pki.in
index bf40c29..1f15410 100755 (executable)
--- a/utilities/ovs-pki.in
+++ b/utilities/ovs-pki.in
@@ -429,6 +429,8 @@ make_request() {
     must_not_exist "$arg1-privkey.pem"
     must_not_exist "$arg1-req.pem"
     make_tmpdir
+    # Use uuidgen or date to create unique subject DNs.
+    unique=`(uuidgen) 2>/dev/null` || unique=`date +"%Y %b %d %T"`
     cat > "$TMP/req.cnf" <<EOF
 [ req ]
 prompt = no
@@ -440,7 +442,7 @@ ST = CA
 L = Palo Alto
 O = Open vSwitch
 OU = Open vSwitch certifier
-CN = Open vSwitch certificate for $arg1
+CN = $arg1 id:$unique
 EOF
     if test $keytype = rsa; then
         (umask 077 && openssl genrsa -out "$1-privkey.pem" $bits) 1>&3 2>&3 \