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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-09-12 18:42:07 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-09-12 18:42:07 +0000 |
commit | d660afc8fd83a630d0a223dd2796003024ce4f11 (patch) | |
tree | ce8e776d60e1d48cd2f06d56561536aff5bdd6d7 /apps/examples/discover | |
parent | ec4b9fcf907986295f1f5e1ccf86821ef5a085b5 (diff) | |
download | nuttx-d660afc8fd83a630d0a223dd2796003024ce4f11.tar.gz nuttx-d660afc8fd83a630d0a223dd2796003024ce4f11.tar.bz2 nuttx-d660afc8fd83a630d0a223dd2796003024ce4f11.zip |
Network discover utility from Max Holtzberg
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5137 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'apps/examples/discover')
-rw-r--r-- | apps/examples/discover/Kconfig | 42 | ||||
-rw-r--r-- | apps/examples/discover/Makefile | 106 | ||||
-rw-r--r-- | apps/examples/discover/main.c | 183 |
3 files changed, 331 insertions, 0 deletions
diff --git a/apps/examples/discover/Kconfig b/apps/examples/discover/Kconfig new file mode 100644 index 000000000..afdb9ff82 --- /dev/null +++ b/apps/examples/discover/Kconfig @@ -0,0 +1,42 @@ +# +# For a description of the syntax of this configuration file, +# see misc/tools/kconfig-language.txt. +# + +config EXAMPLES_DISCOVER + bool "UDP Discovery Example" + default n + depends on NET_UDP + select NETUTILS_DISCOVER + ---help--- + Enable the netutils/discover utility. This example initializes and + starts the UDP discover daemon. This daemon is useful for + discovering devices in local networks, especially with DHCP + configured devices. It listens for UDP broadcasts which also can + include a device class so that groups of devices can be discovered. + It is also possible to address all classes with a kind of broadcast + discover. + +if EXAMPLES_DISCOVER + +config EXAMPLE_DISCOVER_DHCPC + bool "DHCP Client" + default n + +config EXAMPLE_DISCOVER_NOMAC + bool "Use canned MAC address" + default n + +config EXAMPLE_DISCOVER_IPADDR + hex "Target IP address" + default 0x0a000002 + +config EXAMPLE_DISCOVER_DRIPADDR + hex "Router IP address" + default 0x0a000001 + +config EXAMPLE_DISCOVER_NETMASK + hex "Network Mask" + default 0xffffff00 + +endif diff --git a/apps/examples/discover/Makefile b/apps/examples/discover/Makefile new file mode 100644 index 000000000..f42f310a1 --- /dev/null +++ b/apps/examples/discover/Makefile @@ -0,0 +1,106 @@ +############################################################################ +# apps/examples/discover/Makefile +# +# Copyright (C) 2012 Max Holtzberg. All rights reserved. +# Copyright (C) 2008, 2010-2012 Gregory Nutt. All rights reserved. +# +# Authors: Max Holtzberg <mh@uvc.de> +# Gregory Nutt <gnutt@nuttx.org> +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# 3. Neither the name NuttX nor the names of its contributors may be +# used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# +############################################################################ + +-include $(TOPDIR)/.config +-include $(TOPDIR)/Make.defs +include $(APPDIR)/Make.defs + +# Discover built-in application info + +APPNAME = discover +PRIORITY = SCHED_PRIORITY_DEFAULT +STACKSIZE = 2048 + +ASRCS = +CSRCS = main.c + +AOBJS = $(ASRCS:.S=$(OBJEXT)) +COBJS = $(CSRCS:.c=$(OBJEXT)) + +SRCS = $(ASRCS) $(CSRCS) +OBJS = $(AOBJS) $(COBJS) + +ifeq ($(WINTOOL),y) + BIN = "${shell cygpath -w $(APPDIR)/libapps$(LIBEXT)}" +else + BIN = "$(APPDIR)/libapps$(LIBEXT)" +endif + +ROOTDEPPATH = --dep-path . + +# Common build + +VPATH = + +all: .built +.PHONY: clean depend distclean + +$(AOBJS): %$(OBJEXT): %.S + $(call ASSEMBLE, $<, $@) + +$(COBJS): %$(OBJEXT): %.c + $(call COMPILE, $<, $@) + +.built: $(OBJS) + @( for obj in $(OBJS) ; do \ + $(call ARCHIVE, $(BIN), $${obj}); \ + done ; ) + @touch .built + +.context: +ifeq ($(CONFIG_NSH_BUILTIN_APPS),y) + $(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main) + @touch $@ +endif + +context: .context + +.depend: Makefile $(SRCS) + @$(MKDEP) $(ROOTDEPPATH) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep + @touch $@ + +depend: .depend + +clean: + @rm -f *.o *~ .*.swp .built + $(call CLEAN) + +distclean: clean + @rm -f Make.dep .depend + +-include Make.dep diff --git a/apps/examples/discover/main.c b/apps/examples/discover/main.c new file mode 100644 index 000000000..b857e4f68 --- /dev/null +++ b/apps/examples/discover/main.c @@ -0,0 +1,183 @@ +/**************************************************************************** + * examples/discover/main.c + * + * Copyright (C) 2012 Max Holtzberg. All rights reserved. + * Copyright (C) 2008, 2011-2012 Gregory Nutt. All rights reserved. + * + * Authors: Max Holtzberg <mh@uvc.de> + * Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <time.h> +#include <debug.h> + +#include <net/if.h> +#include <nuttx/net/uip/uip.h> +#include <nuttx/net/uip/uip-arp.h> + +#include <apps/netutils/uiplib.h> +#include <apps/netutils/discover.h> + +#ifdef CONFIG_EXAMPLE_DISCOVER_DHCPC +# include <arpa/inet.h> +#endif + +/* Here we include the header file for the application(s) we use in + * our project as defined in the config/<board-name>/defconfig file + */ + +/* DHCPC may be used in conjunction with any other feature (or not) */ + +#ifdef CONFIG_EXAMPLE_DISCOVER_DHCPC +# include <apps/netutils/resolv.h> +# include <apps/netutils/dhcpc.h> +#endif + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * discover_main + ****************************************************************************/ + +int discover_main(int argc, char *argv[]) +{ +#ifndef CONFIG_NSH_BUILTIN_APPS + struct in_addr addr; +#if defined(CONFIG_EXAMPLE_DISCOVER_DHCPC) || defined(CONFIG_EXAMPLE_DISCOVER_NOMAC) + uint8_t mac[IFHWADDRLEN]; +#endif +#ifdef CONFIG_EXAMPLE_DISCOVER_DHCPC + void *handle; +#endif + +/* Many embedded network interfaces must have a software assigned MAC */ + +#ifdef CONFIG_EXAMPLE_DISCOVER_NOMAC + mac[0] = 0x00; + mac[1] = 0xe0; + mac[2] = 0xde; + mac[3] = 0xad; + mac[4] = 0xbe; + mac[5] = 0xef; + uip_setmacaddr("eth0", mac); +#endif + + /* Set up our host address */ + +#ifdef CONFIG_EXAMPLE_DISCOVER_DHCPC + addr.s_addr = 0; +#else + addr.s_addr = HTONL(CONFIG_EXAMPLE_DISCOVER_IPADDR); +#endif + uip_sethostaddr("eth0", &addr); + + /* Set up the default router address */ + + addr.s_addr = HTONL(CONFIG_EXAMPLE_DISCOVER_DRIPADDR); + uip_setdraddr("eth0", &addr); + + /* Setup the subnet mask */ + + addr.s_addr = HTONL(CONFIG_EXAMPLE_DISCOVER_NETMASK); + uip_setnetmask("eth0", &addr); + +#ifdef CONFIG_EXAMPLE_DISCOVER_DHCPC + /* Set up the resolver */ + + resolv_init(); + + /* Get the MAC address of the NIC */ + + uip_getmacaddr("eth0", mac); + + /* Set up the DHCPC modules */ + + handle = dhcpc_open(&mac, IFHWADDRLEN); + + /* Get an IP address. Note: there is no logic here for renewing the address in this + * example. The address should be renewed in ds.lease_time/2 seconds. + */ + + printf("Getting IP address\n"); + if (handle) + { + struct dhcpc_state ds; + (void)dhcpc_request(handle, &ds); + uip_sethostaddr("eth1", &ds.ipaddr); + + if (ds.netmask.s_addr != 0) + { + uip_setnetmask("eth0", &ds.netmask); + } + + if (ds.default_router.s_addr != 0) + { + uip_setdraddr("eth0", &ds.default_router); + } + + if (ds.dnsaddr.s_addr != 0) + { + resolv_conf(&ds.dnsaddr); + } + + dhcpc_close(handle); + printf("IP: %s\n", inet_ntoa(ds.ipaddr)); + } +#endif +#endif /* CONFIG_NSH_BUILTIN_APPS */ + + if (discover_start() < 0) + { + ndbg("Could not start discover daemon.\n"); + return ERROR; + } + + return OK; +} + |