net: shell: dhcpv6: Add cmd to start/stop DHCPv6 client

Allow user to use the net-shell to start or stop DHCPv6 client.

Signed-off-by: Jukka Rissanen <[email protected]>

Author: jukkar

subsys/net/lib/shell/CMakeLists.txt

@@ -11,6 +11,7 @@ zephyr_library_sources(arp.c)
 zephyr_library_sources(capture.c)
 zephyr_library_sources(conn.c)
 zephyr_library_sources(dhcpv4.c)
+zephyr_library_sources(dhcpv6.c)
 zephyr_library_sources(dns.c)
 zephyr_library_sources(events.c)
 zephyr_library_sources(gptp.c)

subsys/net/lib/shell/dhcpv6.c

@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/logging/log.h>
+LOG_MODULE_DECLARE(net_shell);
+
+#include <stdint.h>
+#include <zephyr/net/socket.h>
+
+#include "net_shell_private.h"
+
+static int cmd_net_dhcpv6_client_start(const struct shell *sh, size_t argc, char *argv[])
+{
+#if defined(CONFIG_NET_DHCPV6)
+	struct net_if *iface = NULL;
+	int idx;
+
+	if (argc < 1) {
+		PR_ERROR("Correct usage: net dhcpv6 client %s <index>\n", "start");
+		return -EINVAL;
+	}
+
+	idx = get_iface_idx(sh, argv[1]);
+	if (idx < 0) {
+		return -ENOEXEC;
+	}
+
+	iface = net_if_get_by_index(idx);
+	if (!iface) {
+		PR_WARNING("No such interface in index %d\n", idx);
+		return -ENOEXEC;
+	}
+
+	net_dhcpv6_restart(iface);
+
+#else /* CONFIG_NET_DHCPV6 */
+	PR_INFO("Set %s to enable %s support.\n", "CONFIG_NET_DHCPV6", "Dhcpv6");
+#endif /* CONFIG_NET_DHCPV6 */
+	return 0;
+}
+
+static int cmd_net_dhcpv6_client_stop(const struct shell *sh, size_t argc, char *argv[])
+{
+#if defined(CONFIG_NET_DHCPV6)
+	struct net_if *iface = NULL;
+	int idx;
+
+	if (argc < 1) {
+		PR_ERROR("Correct usage: net dhcpv6 client %s <index>\n", "stop");
+		return -EINVAL;
+	}
+
+	idx = get_iface_idx(sh, argv[1]);
+	if (idx < 0) {
+		return -ENOEXEC;
+	}
+
+	iface = net_if_get_by_index(idx);
+	if (!iface) {
+		PR_WARNING("No such interface in index %d\n", idx);
+		return -ENOEXEC;
+	}
+
+	net_dhcpv6_stop(iface);
+
+#else /* CONFIG_NET_DHCPV6 */
+	PR_INFO("Set %s to enable %s support.\n", "CONFIG_NET_DHCPV6", "Dhcpv6");
+#endif /* CONFIG_NET_DHCPV6 */
+	return 0;
+}
+
+SHELL_STATIC_SUBCMD_SET_CREATE(net_cmd_dhcpv6_client,
+	SHELL_CMD_ARG(start, NULL, "Start the Dhcpv6 client operation on the interface.\n"
+		      "'net dhcpv6 client start <index>'\n"
+		      "<index> is the network interface index.",
+		      cmd_net_dhcpv6_client_start, 2, 0),
+	SHELL_CMD_ARG(stop, NULL, "Stop the Dhcpv6 client operation on the interface.\n"
+		      "'net dhcpv6 client stop <index>'\n"
+		      "<index> is the network interface index.",
+		      cmd_net_dhcpv6_client_stop, 2, 0),
+	SHELL_SUBCMD_SET_END
+);
+
+SHELL_STATIC_SUBCMD_SET_CREATE(net_cmd_dhcpv6,
+	SHELL_CMD(client, &net_cmd_dhcpv6_client,
+		  "Dhcpv6 client management.",
+		  NULL),
+	SHELL_SUBCMD_SET_END
+);
+
+SHELL_SUBCMD_ADD((net), dhcpv6, &net_cmd_dhcpv6, "Manage DHPCv6 services.",
+		 NULL, 1, 0);