boards/sim: add S2OPC server configuration

add S2OPC server configuration for sim

Assisted-by: Claude Code
Signed-off-by: raiden00pl <raiden00@railab.me>

Documentation/platforms/sim/sim/boards/sim/index.rst

@@ -110,6 +110,45 @@ graphical front-end to GDB:
    need to start the Cygwin-X server before running ``ddd``. On macOS, it's
    probably easier to use ``lldb`` instead of ``gdb``.
 
+S2OPC
+=====
+
+The ``sim:s2opc`` configuration provides the S2OPC OPC UA server example.
+Build it from the NuttX source directory::
+
+  $ ./tools/configure.sh -l sim:s2opc
+  $ make -j
+
+An out-of-tree CMake build is also supported::
+
+  $ cmake -B build -DBOARD_CONFIG=sim:s2opc -GNinja
+  $ cmake --build build
+
+The simulator attaches its TAP device to a host bridge named ``s2opc0``.
+Create the bridge and assign the host address::
+
+  $ sudo ip link add s2opc0 type bridge
+  $ sudo ip address add 10.0.0.1/24 dev s2opc0
+  $ sudo ip link set s2opc0 up
+
+Start NuttX with permission to create the TAP device, then start the server::
+
+  $ ./nuttx
+  nsh> ping 10.0.0.1
+  nsh> s2opc
+
+From another host terminal, read the standard server time node::
+
+  $ uaread -u opc.tcp://10.0.0.2:4841 -n i=2258
+
+Press Ctrl-C at the NSH terminal to stop the server.  After testing, stop
+NuttX and remove the bridge::
+
+  $ sudo ip link delete s2opc0
+
+See :doc:`/applications/examples/s2opc/index` for command-line overrides and
+:doc:`/applications/netutils/s2opc/index` for toolkit configuration.
+
 Issues
 ======
 

boards/sim/sim/sim/configs/s2opc/defconfig

@@ -0,0 +1,99 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+CONFIG_ARCH="sim"
+CONFIG_ARCH_BOARD="sim"
+CONFIG_ARCH_BOARD_SIM=y
+CONFIG_ARCH_CHIP="sim"
+CONFIG_ARCH_SIM=y
+CONFIG_BOARDCTL_APP_SYMTAB=y
+CONFIG_BOARDCTL_POWEROFF=y
+CONFIG_BOARD_LOOPSPERMSEC=0
+CONFIG_BOOT_RUNFROMEXTSRAM=y
+CONFIG_BUILTIN=y
+CONFIG_COVERAGE_ALL=y
+CONFIG_COVERAGE_TOOLCHAIN=y
+CONFIG_CRYPTO_MBEDTLS=y
+CONFIG_DEBUG_ASSERTIONS=y
+CONFIG_DEBUG_ASSERTIONS_EXPRESSION=y
+CONFIG_DEBUG_FEATURES=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_DEV_GPIO=y
+CONFIG_DEV_LOOP=y
+CONFIG_DEV_URANDOM=y
+CONFIG_ETC_FATDEVNO=2
+CONFIG_ETC_ROMFS=y
+CONFIG_ETC_ROMFSDEVNO=1
+CONFIG_EXAMPLES_GPIO=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_S2OPC=y
+CONFIG_EXAMPLES_S2OPC_ENDPOINT_URL="opc.tcp://10.0.0.2:4841"
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_BINFS=y
+CONFIG_FS_FAT=y
+CONFIG_FS_HOSTFS=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_RAMMAP=y
+CONFIG_FS_ROMFS=y
+CONFIG_GPIO_LOWER_HALF=y
+CONFIG_HAVE_CXXINITIALIZE=y
+CONFIG_IDLETHREAD_STACKSIZE=4096
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_IOEXPANDER=y
+CONFIG_IOEXPANDER_DUMMY=y
+CONFIG_LIBC_ENVPATH=y
+CONFIG_LIBC_EXECFUNCS=y
+CONFIG_LIBC_LOCALE=y
+CONFIG_LIBC_LOCALE_CATALOG=y
+CONFIG_LIBC_LOCALE_GETTEXT=y
+CONFIG_LIBC_MAX_EXITFUNS=1
+CONFIG_LIBC_NETDB=y
+CONFIG_LIBC_NUMBERED_ARGS=y
+CONFIG_NDEBUG=y
+CONFIG_NET=y
+CONFIG_NETUTILS_S2OPC=y
+CONFIG_NET_BINDTODEVICE=y
+CONFIG_NET_ETH_PKTSIZE=1514
+CONFIG_NET_ICMP_SOCKET=y
+CONFIG_NET_LOOPBACK=y
+CONFIG_NET_SOCKOPTS=y
+CONFIG_NET_TCP=y
+CONFIG_NET_TCP_KEEPALIVE=y
+CONFIG_NET_UDP=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FILE_APPS=y
+CONFIG_NSH_READLINE=y
+CONFIG_PATH_INITIAL="/bin"
+CONFIG_PIPES=y
+CONFIG_PSEUDOFS_ATTRIBUTES=y
+CONFIG_PSEUDOFS_FILE=y
+CONFIG_PTHREAD_MUTEX_TYPES=y
+CONFIG_READLINE_CMD_HISTORY=y
+CONFIG_READLINE_EDIT_EMACS=y
+CONFIG_READLINE_TABCOMPLETION=y
+CONFIG_RR_INTERVAL=10
+CONFIG_RTC=y
+CONFIG_RTC_ARCH=y
+CONFIG_RTC_DRIVER=y
+CONFIG_SCHED_BACKTRACE=y
+CONFIG_SCHED_EVENTS=y
+CONFIG_SCHED_HAVE_PARENT=y
+CONFIG_SCHED_WAITPID=y
+CONFIG_SIM_HOSTFS=y
+CONFIG_SIM_NETDEV=y
+CONFIG_SIM_NET_BRIDGE=y
+CONFIG_SIM_NET_BRIDGE_DEVICE="s2opc0"
+CONFIG_SIM_WALLTIME_SIGNAL=y
+CONFIG_START_MONTH=6
+CONFIG_START_YEAR=2008
+CONFIG_SYSTEM_DUMPSTACK=y
+CONFIG_SYSTEM_GCOV=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_PING=y
+CONFIG_TESTING_OSTEST=y