[PATCH 3/4] Add new function device_get_by_mac_address()

[Jonatan Schlag <jonatan.schlag@ipfire.org>]

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We need this function and the command to identify ports in a nitsi test.

Signed-off-by: Jonatan Schlag <jonatan.schlag(a)ipfire.org>
---
 src/functions/functions.device | 18 ++++++++++++++++++
 src/network                    |  3 +++
 2 files changed, 21 insertions(+)

diff --git a/src/functions/functions.device b/src/functions/functions.device
index 0cd6e4e..ace4022 100644
--- a/src/functions/functions.device
+++ b/src/functions/functions.device
@@ -1111,3 +1111,21 @@ device_get_by_assigned_ip_address() {
 	print "${device}"
 	return ${EXIT_OK}
 }
+
+device_get_by_mac_address() {
+	local mac=${1}
+
+	assert isset mac
+
+	local device
+
+	for device in $(device_list); do
+		if [ "${mac}" = "$(device_get_address ${device})" ]; then
+			print "${device}"
+			return ${EXIT_OK}
+		fi
+	done
+
+	# We could not found a port to the given mac address so we return exit error
+	return ${EXIT_ERROR}
+}
diff --git a/src/network b/src/network
index b28ecdb..f26c0dc 100644
--- a/src/network
+++ b/src/network
@@ -1286,6 +1286,9 @@ cli_raw() {
 		db-dump)
 			db_dump
 			;;
+		device-get-by-mac-address)
+			device_get_by_mac_address "$@"
+			;;
 		ipsec-connection-exists)
 			ipsec_connection_exists "$@"
 			;;
-- 
2.11.0