meta-google: gbmc-bridge: Rework IP address persistence
This consolidates all of the mechanisms which write out a persistent IP
into a single place. It also transitions to writing a very simple
persistent file instead of systemd style network units.
Change-Id: Ib99d7646178d2c5383cf23b09248bf24544c1d9e
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-google/recipes-google/ncsi/files/50-gbmc-ncsi-clear-ip.sh.in b/meta-google/recipes-google/ncsi/files/50-gbmc-ncsi-clear-ip.sh.in
new file mode 100644
index 0000000..5056cfd
--- /dev/null
+++ b/meta-google/recipes-google/ncsi/files/50-gbmc-ncsi-clear-ip.sh.in
@@ -0,0 +1,33 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+[ -n "${gbmc_ncsi_clear_ip-}" ] && return
+
+source /usr/libexec/ncsid_lib.sh || exit
+
+gbmc_ncsi_clear_ip_hook() {
+ local ip="${1-}"
+
+ # We only want to clear our IPs if we are assigning a new IP
+ [ -z "$ip" ] && return
+
+ echo "Removing Persistent NCSI IPs" >&2
+ SetStatic xyz.openbmc_project.Network '@NCSI_IF@' 2>/dev/null || true
+ UpdateIP xyz.openbmc_project.Network '@NCSI_IF@' '0.0.0.0' '0' 2>/dev/null || true
+ UpdateIP xyz.openbmc_project.Network '@NCSI_IF@' '::' '0' 2>/dev/null || true
+}
+
+GBMC_BR_LIB_SET_IP_HOOKS+=(gbmc_ncsi_clear_ip_hook)
+
+gbmc_ncsi_clear_ip=1