net: shell: Allow user to disable not used commands

User can set CONFIG_NET_SHELL_SHOW_DISABLED_COMMANDS=n to prevent
unused net-shell commands from showing. This can save flash as
the disabled commands will not be shown in net-shell listing.

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

Author: jukkar

subsys/net/ip/Kconfig

@@ -174,9 +174,136 @@ config NET_SHELL
 	  Activate shell module that provides network commands like
 	  ping to the console.
 
+if NET_SHELL
+
+config NET_SHELL_SHOW_DISABLED_COMMANDS
+	bool "Show disabled command information"
+	default y
+	help
+	  By default all the network shell commands are there and the
+	  command itself will print out that it is disabled and how to
+	  enable it. If you do not need this and only want to see the
+	  commands that you can actively use, then you can save a little
+	  bit of flash by not showing commands that cannot be used with
+	  current configuration.
+
+config NET_SHELL_ETHERNET_SUPPORTED
+	bool "Ethernet related configuration"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_L2_ETHERNET
+
+config NET_SHELL_CAPTURE_SUPPORTED
+	bool "Packet capture configuration"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_CAPTURE
+
+config NET_SHELL_DHCPV4_SUPPORTED
+	bool "DHCPv4 start / stop"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_DHCPV4_SERVER || NET_DHCPV4
+
+config NET_SHELL_DHCPV6_SUPPORTED
+	bool "DHCPv6 start / stop"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_DHCPV6
+
+config NET_SHELL_DNS_RESOLVER_SUPPORTED
+	bool "DNS resolver"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || DNS_RESOLVER
+
+config NET_SHELL_EVENT_MONITOR_SUPPORTED
+	bool "Network management event monitoring configuration"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_MGMT_EVENT_MONITOR
+
+config NET_SHELL_GPTP_SUPPORTED
+	bool "gPTP monitoring"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_GPTP
+
+config NET_SHELL_HTTP_SERVER_SUPPORTED
+	bool "HTTP server status"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || HTTP_SERVER
+
+config NET_SHELL_CONNECTION_MANAGER_SUPPORTED
+	bool "Connection manager status"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_CONNECTION_MANAGER
+
+config NET_SHELL_IPV4_SUPPORTED
+	bool "IPv4 config"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || (NET_NATIVE_IPV4 && NET_IPV4)
+
+config NET_SHELL_IPV6_SUPPORTED
+	bool "IPv6 config"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || (NET_NATIVE_IPV6 && NET_IPV6)
+
+config NET_SHELL_IP_SUPPORTED
+	bool "Generic IP utilities"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_IP
+
+config NET_SHELL_PKT_ALLOC_SUPPORTED
+	bool "Packet allocation monitoring"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_DEBUG_NET_PKT_ALLOC
+
+config NET_SHELL_PPP_SUPPORTED
+	bool "PPP config"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_L2_PPP
+
+config NET_SHELL_POWER_MANAGEMENT_SUPPORTED
+	bool "Network power management resume / suspend"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_POWER_MANAGEMENT
+
+config NET_SHELL_ROUTE_SUPPORTED
+	bool "IP routing config"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || (NET_ROUTE && NET_NATIVE)
+
+config NET_SHELL_SOCKETS_SERVICE_SUPPORTED
+	bool "Socket service status"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_SOCKETS_SERVICE
+
+config NET_SHELL_STATISTICS_SUPPORTED
+	bool "Network statistics monitoring"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_STATISTICS
+
+config NET_SHELL_TCP_SUPPORTED
+	bool "Send / receive TCP data"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || (NET_NATIVE_TCP && NET_TCP)
+
+config NET_SHELL_UDP_SUPPORTED
+	bool "Send / receive UDP data"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || (NET_NATIVE_UDP && NET_UDP)
+
+config NET_SHELL_VIRTUAL_SUPPORTED
+	bool "Virtual network interface management"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_L2_VIRTUAL
+
+config NET_SHELL_VLAN_SUPPORTED
+	bool "Virtual LAN config"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || NET_VLAN
+
+config NET_SHELL_WEBSOCKET_SUPPORTED
+	bool "Websocket client status"
+	default y
+	depends on NET_SHELL_SHOW_DISABLED_COMMANDS || WEBSOCKET_CLIENT
+
 config NET_SHELL_DYN_CMD_COMPLETION
 	bool "Network shell dynamic command completion"
-	depends on NET_SHELL
 	default y
 	help
 	  Enable various net-shell command to support dynamic command
@@ -191,12 +318,14 @@ config NET_SHELL_DYN_CMD_COMPLETION
 
 config NET_SHELL_REQUIRE_TX_THREAD
 	bool
-	depends on NET_SHELL && (SHELL_BACKEND_TELNET || SHELL_BACKEND_MQTT)
+	depends on SHELL_BACKEND_TELNET || SHELL_BACKEND_MQTT
 	default y if NET_ARP
 	help
 	  Hidden symbol indicating that network shell requires separate TX
 	  thread due to possible deadlocks during shell/net stack operations.
 
+endif # NET_SHELL
+
 config NET_TC_TX_COUNT
 	int "How many Tx traffic classes to have for each network device"
 	default 1 if USERSPACE || USB_DEVICE_NETWORK || \

subsys/net/lib/shell/CMakeLists.txt

@@ -6,32 +6,32 @@ zephyr_library_include_directories(. ${ZEPHYR_BASE}/subsys/net/lib)
 zephyr_library_include_directories(. ${ZEPHYR_BASE}/subsys/net/ip)
 zephyr_library_link_libraries_ifdef(CONFIG_MBEDTLS mbedTLS)
 
-zephyr_library_sources(allocs.c)
-zephyr_library_sources(arp.c)
-zephyr_library_sources(capture.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_PKT_ALLOC_SUPPORTED allocs.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_ETHERNET_SUPPORTED arp.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_CAPTURE_SUPPORTED 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)
-zephyr_library_sources(http.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_DHCPV4_SUPPORTED dhcpv4.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_DHCPV6_SUPPORTED dhcpv6.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_DNS_RESOLVER_SUPPORTED dns.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_EVENT_MONITOR_SUPPORTED events.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_GPTP_SUPPORTED gptp.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_HTTP_SERVER_SUPPORTED http.c)
 zephyr_library_sources(iface.c)
-zephyr_library_sources(cm.c)
-zephyr_library_sources(ipv4.c)
-zephyr_library_sources(ipv6.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_CONNECTION_MANAGER_SUPPORTED cm.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_IPV4_SUPPORTED ipv4.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_IPV6_SUPPORTED ipv6.c)
 zephyr_library_sources(mem.c)
-zephyr_library_sources(nbr.c)
-zephyr_library_sources(ping.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_IPV6_SUPPORTED nbr.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_IP_SUPPORTED ping.c)
 zephyr_library_sources(pkt.c)
-zephyr_library_sources(ppp.c)
-zephyr_library_sources(resume.c)
-zephyr_library_sources(route.c)
-zephyr_library_sources(sockets.c)
-zephyr_library_sources(stats.c)
-zephyr_library_sources(suspend.c)
-zephyr_library_sources(tcp.c)
-zephyr_library_sources(udp.c)
-zephyr_library_sources(virtual.c)
-zephyr_library_sources(vlan.c)
-zephyr_library_sources(websocket.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_PPP_SUPPORTED ppp.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_POWER_MANAGEMENT_SUPPORTED resume.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_ROUTE_SUPPORTED route.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_SOCKETS_SERVICE_SUPPORTED sockets.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_STATISTICS_SUPPORTED stats.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_POWER_MANAGEMENT_SUPPORTED suspend.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_TCP_SUPPORTED tcp.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_UDP_SUPPORTED udp.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_VIRTUAL_SUPPORTED virtual.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_VLAN_SUPPORTED vlan.c)
+zephyr_library_sources_ifdef(CONFIG_NET_SHELL_WEBSOCKET_SUPPORTED websocket.c)