net: shell: Add support to configure IP address

Add support to configure IP address using net shell.

Signed-off-by: Ravi Dondaputi <[email protected]>

Author: rado17

subsys/net/ip/net_shell.c

@@ -3536,6 +3536,163 @@ static int cmd_net_ipv6(const struct shell *sh, size_t argc, char *argv[])
 	return 0;
 }
 
+#if defined(CONFIG_NET_NATIVE_IPV4)
+static void ip_address_lifetime_cb(struct net_if *iface, void *user_data)
+{
+	struct net_shell_user_data *data = user_data;
+	const struct shell *sh = data->sh;
+	struct net_if_ipv4 *ipv4 = iface->config.ip.ipv4;
+	const char *extra;
+	int i;
+
+	ARG_UNUSED(user_data);
+
+	PR("\nIPv4 addresses for interface %d (%p) (%s)\n",
+	   net_if_get_by_iface(iface), iface, iface2str(iface, &extra));
+	PR("============================================%s\n", extra);
+
+	if (!ipv4) {
+		PR("No IPv4 config found for this interface.\n");
+		return;
+	}
+
+	PR("Type      \tState    \tLifetime (sec)\tAddress\n");
+
+	for (i = 0; i < NET_IF_MAX_IPV4_ADDR; i++) {
+		if (!ipv4->unicast[i].is_used ||
+		    ipv4->unicast[i].address.family != AF_INET) {
+			continue;
+		}
+
+		PR("%s  \t%s    \t%12s/%12s\n",
+		       addrtype2str(ipv4->unicast[i].addr_type),
+		       addrstate2str(ipv4->unicast[i].addr_state),
+		       net_sprint_ipv4_addr(
+			       &ipv4->unicast[i].address.in_addr),
+		       net_sprint_ipv4_addr(
+			       &ipv4->netmask));
+	}
+}
+#endif /* CONFIG_NET_NATIVE_IPV4 */
+
+static int cmd_net_ipv4(const struct shell *sh, size_t argc, char *argv[])
+{
+	PR("IPv4 support                              : %s\n",
+	   IS_ENABLED(CONFIG_NET_IPV4) ?
+	   "enabled" : "disabled");
+	if (!IS_ENABLED(CONFIG_NET_IPV4)) {
+		return -ENOEXEC;
+	}
+
+#if defined(CONFIG_NET_NATIVE_IPV4)
+	struct net_shell_user_data user_data;
+
+	PR("IPv4 fragmentation support                : %s\n",
+	   IS_ENABLED(CONFIG_NET_IPV4_FRAGMENT) ? "enabled" :
+	   "disabled");
+	PR("Max number of IPv4 network interfaces "
+	   "in the system          : %d\n",
+	   CONFIG_NET_IF_MAX_IPV4_COUNT);
+	PR("Max number of unicast IPv4 addresses "
+	   "per network interface   : %d\n",
+	   CONFIG_NET_IF_UNICAST_IPV4_ADDR_COUNT);
+	PR("Max number of multicast IPv4 addresses "
+	   "per network interface : %d\n",
+	   CONFIG_NET_IF_MCAST_IPV4_ADDR_COUNT);
+
+	user_data.sh = sh;
+	user_data.user_data = NULL;
+
+	/* Print information about address lifetime */
+	net_if_foreach(ip_address_lifetime_cb, &user_data);
+#endif
+
+	return 0;
+}
+
+static int cmd_net_ip_add(const struct shell *sh, size_t argc, char *argv[])
+{
+#if defined(CONFIG_NET_NATIVE_IPV4)
+	struct net_if *iface = NULL;
+	int idx;
+	struct in_addr addr;
+
+	if (argc != 4) {
+		PR_ERROR("Correct usage: net ipv4 add <index> <address> <netmask>\n");
+		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;
+	}
+
+	if (net_addr_pton(AF_INET, argv[2], &addr)) {
+		PR_ERROR("Invalid address: %s\n", argv[2]);
+		return -EINVAL;
+	}
+
+	net_if_ipv4_addr_add(iface, &addr, NET_ADDR_MANUAL, 0);
+
+	if (net_addr_pton(AF_INET, argv[3], &addr)) {
+		PR_ERROR("Invalid netmask: %s", argv[3]);
+		return -EINVAL;
+	}
+
+	net_if_ipv4_set_netmask(iface, &addr);
+
+#else /* CONFIG_NET_NATIVE_IPV4 */
+	PR_INFO("Set %s and %s to enable native %s support.\n",
+			"CONFIG_NET_NATIVE", "CONFIG_NET_IPV4", "IPv4");
+#endif /* CONFIG_NET_NATIVE_IPV4 */
+	return 0;
+}
+
+static int cmd_net_ip_del(const struct shell *sh, size_t argc, char *argv[])
+{
+#if defined(CONFIG_NET_NATIVE_IPV4)
+	struct net_if *iface = NULL;
+	int idx;
+	struct in_addr addr;
+
+	if (argc != 3) {
+		PR_ERROR("Correct usage: net ipv4 del <index> <address>");
+		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;
+	}
+
+	if (net_addr_pton(AF_INET, argv[2], &addr)) {
+		PR_ERROR("Invalid address: %s\n", argv[2]);
+		return -EINVAL;
+	}
+
+	if (!net_if_ipv4_addr_rm(iface, &addr)) {
+		PR_ERROR("Failed to delete %s\n", argv[2]);
+		return -ENOEXEC;
+	}
+#else /* CONFIG_NET_NATIVE_IPV4 */
+	PR_INFO("Set %s and %s to enable native %s support.\n",
+			"CONFIG_NET_NATIVE", "CONFIG_NET_IPV4", "IPv4");
+#endif /* CONFIG_NET_NATIVE_IPV4 */
+	return 0;
+}
+
 static int cmd_net_iface(const struct shell *sh, size_t argc, char *argv[])
 {
 	struct net_if *iface = NULL;
@@ -5984,6 +6141,16 @@ SHELL_STATIC_SUBCMD_SET_CREATE(net_cmd_iface,
 	SHELL_SUBCMD_SET_END
 );
 
+SHELL_STATIC_SUBCMD_SET_CREATE(net_cmd_ip,
+	SHELL_CMD(add, NULL,
+		  "'net ipv4 add <index> <address>' adds the address to the interface.",
+		  cmd_net_ip_add),
+	SHELL_CMD(del, NULL,
+		  "'net ipv4 del <index> <address>' deletes the address from the interface.",
+		  cmd_net_ip_del),
+	SHELL_SUBCMD_SET_END
+);
+
 SHELL_STATIC_SUBCMD_SET_CREATE(net_cmd_ppp,
 	SHELL_CMD(ping, IFACE_PPP_DYN_CMD,
 		  "'net ppp ping <index>' sends Echo-request to PPP interface.",
@@ -6163,6 +6330,10 @@ SHELL_STATIC_SUBCMD_SET_CREATE(net_commands,
 		  "Print information about IPv6 specific information and "
 		  "configuration.",
 		  cmd_net_ipv6),
+	SHELL_CMD(ipv4, &net_cmd_ip,
+		  "Print information about IPv4 specific information and "
+		  "configuration.",
+		  cmd_net_ipv4),
 	SHELL_CMD(mem, NULL, "Print information about network memory usage.",
 		  cmd_net_mem),
 	SHELL_CMD(nbr, &net_cmd_nbr, "Print neighbor information.",