apps/examples/bridge: Add host-side test driver

7 files changed, 537 insertions, 34 deletions

diff --git a/apps/examples/bridge/.gitignore b/apps/examples/bridge/.gitignore
index fa1ec7579..67b2dbc9d 100644
--- a/apps/examples/bridge/.gitignore
+++ b/apps/examples/bridge/.gitignore
@@ -1,6 +1,10 @@
 /Make.dep
 /.depend
 /.built
+/bridge_config.h
+/host1
+/host2
+/*.exe
 /*.asm
 /*.obj
 /*.rel
diff --git a/apps/examples/bridge/Kconfig b/apps/examples/bridge/Kconfig
index bfcf9e7ed..facd5b185 100644
--- a/apps/examples/bridge/Kconfig
+++ b/apps/examples/bridge/Kconfig
@@ -74,6 +74,8 @@ config EXAMPLES_BRIDGE_NET1_IPADDR
 	hex "IP address"
 	default 0x0a000002
 	depends on !EXAMPLES_BRIDGE_NET1_DHCPC
+	---help---
+		IP address of network 1 for the target
 
 config EXAMPLES_BRIDGE_NET1_DRIPADDR
 	hex "Default Router IP address (Gateway)"
@@ -85,6 +87,12 @@ config EXAMPLES_BRIDGE_NET1_NETMASK
 
 endif # !NSH_BUILTIN_APPS
 
+config EXAMPLES_BRIDGE_NET1_IPHOST
+	hex "Host IP address"
+	default 0x0a000001
+	---help---
+		IP address of network 1 for the host
+
 config EXAMPLES_BRIDGE_NET1_STACKSIZE
 	int "Network 1 daemon stacksize"
 	default 2048
@@ -148,6 +156,8 @@ config EXAMPLES_BRIDGE_NET2_IPADDR
 	hex "IP address"
 	default 0x0a000003
 	depends on !EXAMPLES_BRIDGE_NET2_DHCPC
+	---help---
+		IP address of network 2 for the target
 
 config EXAMPLES_BRIDGE_NET2_DRIPADDR
 	hex "Default Router IP address (Gateway)"
@@ -159,6 +169,12 @@ config EXAMPLES_BRIDGE_NET2_NETMASK
 
 endif # !NSH_BUILTIN_APPS
 
+config EXAMPLES_BRIDGE_NET2_IPHOST
+	hex "Host IP address"
+	default 0x0a000001
+	---help---
+		IP address of network 2 for the host
+
 config EXAMPLES_BRIDGE_NET2_STACKSIZE
 	int "Network 2 daemon stacksize"
 	default 2048
diff --git a/apps/examples/bridge/Makefile b/apps/examples/bridge/Makefile
index 62521e46c..c9fd5200c 100644
--- a/apps/examples/bridge/Makefile
+++ b/apps/examples/bridge/Makefile
@@ -40,43 +40,54 @@ include $(APPDIR)/Make.defs
 
 # Discover built-in application info
 
-APPNAME = bridge
-PRIORITY = SCHED_PRIORITY_DEFAULT
-STACKSIZE = 2048
+TARG_APPNAME = bridge
+TARG_PRIORITY = SCHED_PRIORITY_DEFAULT
+TARG_STACKSIZE = 2048
 
-ASRCS =
-CSRCS =
+TARG_ASRCS =
+TARG_CSRCS =
 MAINSRC = bridge_main.c
 
-AOBJS = $(ASRCS:.S=$(OBJEXT))
-COBJS = $(CSRCS:.c=$(OBJEXT))
-MAINOBJ = $(MAINSRC:.c=$(OBJEXT))
+TARG_AOBJS = $(TARG_ASRCS:.S=$(OBJEXT))
+TARG_COBJS = $(TARG_CSRCS:.c=$(OBJEXT))
+TARG_MAINOBJ = $(MAINSRC:.c=$(OBJEXT))
 
-SRCS = $(ASRCS) $(CSRCS) $(MAINSRC)
-OBJS = $(AOBJS) $(COBJS)
+TARG_SRCS = $(TARG_ASRCS) $(TARG_CSRCS) $(MAINSRC)
+TARG_OBJS = $(TARG_AOBJS) $(TARG_COBJS)
 
 ifneq ($(CONFIG_BUILD_KERNEL),y)
-  OBJS += $(MAINOBJ)
+  TARG_OBJS += $(TARG_MAINOBJ)
 endif
 
+HOST_SRCS1 = host_net1.c
+HOST_SRCS2 = host_net2.c
+HOST_SRCS  = $(HOST_SRCS1) $(HOST_SRCS2)
+
+HOST_OBJS1 = $(HOST_SRCS1:.c=.o)
+HOST_OBJS2 = $(HOST_SRCS2:.c=.o)
+HOST_OBJS  = $(HOST_OBJS1) $(HOST_OBJS2)
+
+HOST_BIN1 = host1
+HOST_BIN2 = host2
+
 ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN = ..\..\libapps$(LIBEXT)
+  TARG_BIN = ..\..\libapps$(LIBEXT)
 else
 ifeq ($(WINTOOL),y)
-  BIN = ..\\..\\libapps$(LIBEXT)
+  TARG_BIN = ..\\..\\libapps$(LIBEXT)
 else
-  BIN = ../../libapps$(LIBEXT)
+  TARG_BIN = ../../libapps$(LIBEXT)
 endif
 endif
 
 ifeq ($(WINTOOL),y)
-  INSTALL_DIR = "${shell cygpath -w $(BIN_DIR)}"
+  TARG_INSTALL_DIR = "${shell cygpath -w $(BIN_DIR)}"
 else
-  INSTALL_DIR = $(BIN_DIR)
+  TARG_INSTALL_DIR = $(BIN_DIR)
 endif
 
 CONFIG_EXAMPLE_BRIDGE_PROGNAME ?= bridge$(EXEEXT)
-PROGNAME = $(CONFIG_EXAMPLE_BRIDGE_PROGNAME)
+TARG_PROGNAME = $(CONFIG_EXAMPLE_BRIDGE_PROGNAME)
 
 ROOTDEPPATH = --dep-path .
 
@@ -87,23 +98,37 @@ VPATH =
 all: .built
 .PHONY: clean depend distclean
 
-$(AOBJS): %$(OBJEXT): %.S
+$(TARG_AOBJS): %$(OBJEXT): %.S
 	$(call ASSEMBLE, $<, $@)
 
-$(COBJS) $(MAINOBJ): %$(OBJEXT): %.c
+$(TARG_COBJS) $(TARG_MAINOBJ): %$(OBJEXT): %.c
 	$(call COMPILE, $<, $@)
 
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
+$(HOST_OBJS): %.o: %.c
+	$(HOSTCC) -c $(HOSTCFLAGS) $< -o $@
+
+$(TARG_BIN): $(TARG_OBJS)
+	$(call ARCHIVE, $(TARG_BIN), $(TARG_OBJS))
+
+bridge_config.h: $(TOPDIR)/include/nuttx/config.h
+	cp $(TOPDIR)/include/nuttx/config.h bridge_config.h
+
+$(HOST_BIN1): bridge_config.h $(HOST_OBJS1)
+	$(HOSTCC) $(HOSTLDFLAGS) $(HOST_OBJS1) -o $@
+
+$(HOST_BIN2): bridge_config.h $(HOST_OBJS2)
+	$(HOSTCC) $(HOSTLDFLAGS) $(HOST_OBJS2) -o $@
+
+.built: $(TARG_BIN) $(HOST_BIN1) $(HOST_BIN2)
 	@touch .built
 
 ifeq ($(CONFIG_BUILD_KERNEL),y)
-$(BIN_DIR)$(DELIM)$(PROGNAME): $(OBJS) $(MAINOBJ)
-	@echo "LD: $(PROGNAME)"
-	$(Q) $(LD) $(LDELFFLAGS) $(LDLIBPATH) -o $(INSTALL_DIR)$(DELIM)$(PROGNAME) $(ARCHCRT0OBJ) $(MAINOBJ) $(LDLIBS)
-	$(Q) $(NM) -u  $(INSTALL_DIR)$(DELIM)$(PROGNAME)
+$(BIN_DIR)$(DELIM)$(TARG_PROGNAME): $(TARG_OBJS) $(TARG_MAINOBJ)
+	@echo "LD: $(TARG_PROGNAME)"
+	$(Q) $(LD) $(LDELFFLAGS) $(LDLIBPATH) -o $(TARG_INSTALL_DIR)$(DELIM)$(TARG_PROGNAME) $(ARCHCRT0OBJ) $(TARG_MAINOBJ) $(LDLIBS)
+	$(Q) $(NM) -u  $(TARG_INSTALL_DIR)$(DELIM)$(TARG_PROGNAME)
 
-install: $(BIN_DIR)$(DELIM)$(PROGNAME)
+install: $(BIN_DIR)$(DELIM)$(TARG_PROGNAME)
 
 else
 install:
@@ -111,26 +136,29 @@ install:
 endif
 
 ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
-$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat: $(DEPCONFIG) Makefile
-	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
+$(BUILTIN_REGISTRY)$(DELIM)$(TARG_APPNAME)_main.bdat: $(DEPCONFIG) Makefile
+	$(call REGISTER,$(TARG_APPNAME),$(TARG_PRIORITY),$(TARG_STACKSIZE),$(TARG_APPNAME)_main)
 
-context: $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat
+context: $(BUILTIN_REGISTRY)$(DELIM)$(TARG_APPNAME)_main.bdat
 else
 context:
 endif
 
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
+.depend: Makefile $(TARG_SRCS)
+	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(TARG_SRCS) >Make.dep
 	@touch $@
 
 depend: .depend
 
 clean:
 	$(call DELFILE, .built)
+	$(call DELFILE, $(HOST_BIN1))
+	$(call DELFILE, $(HOST_BIN2))
 	$(call CLEAN)
 
 distclean: clean
 	$(call DELFILE, Make.dep)
 	$(call DELFILE, .depend)
+	$(call DELFILE, bridge_config.h)
 
 -include Make.dep
diff --git a/apps/examples/bridge/bridge_main.c b/apps/examples/bridge/bridge_main.c
index b7062f643..7608b9a35 100644
--- a/apps/examples/bridge/bridge_main.c
+++ b/apps/examples/bridge/bridge_main.c
@@ -63,9 +63,6 @@
  * Pre-processor Definitions
  ****************************************************************************/
 
-#define BRIDGE_MAXLINE 64
-#define BRIDGE_POLLTIMEOUT 10000
-
 /****************************************************************************
  * Private Data
  ****************************************************************************/
@@ -192,6 +189,13 @@ printf("NET1: Configuring %s\n", CONFIG_EXAMPLES_BRIDGE_NET1_IFNAME);
   g_net1_ipaddr = HTONL(CONFIG_EXAMPLES_BRIDGE_NET1_IPADDR);
 
 #endif /* CONFIG_EXAMPLES_BRIDGE_NET1_DHCPC */
+
+#else /* CONFIG_NSH_BUILTIN_APPS */
+  /* Hmmm.. there is an issue here.  Where do we get the IP address if we
+   * are a builtin in application?
+   */
+#  warning Missing logic
+
 #endif /* CONFIG_NSH_BUILTIN_APPS */
 
   return OK;
@@ -310,6 +314,13 @@ printf("NET2: Configuring %s\n", CONFIG_EXAMPLES_BRIDGE_NET2_IFNAME);
   g_net2_ipaddr = HTONL(CONFIG_EXAMPLES_BRIDGE_NET2_IPADDR);
 
 #endif /* CONFIG_EXAMPLES_BRIDGE_NET2_DHCPC */
+
+#else /* CONFIG_NSH_BUILTIN_APPS */
+  /* Hmmm.. there is an issue here.  Where do we get the IP address if we
+   * are a builtin in application?
+   */
+#  warning Missing logic
+
 #endif /* CONFIG_NSH_BUILTIN_APPS */
 
   return OK;
diff --git a/apps/examples/bridge/host_main.c b/apps/examples/bridge/host_main.c
new file mode 100644
index 000000000..f1fa8c7ec
--- /dev/null
+++ b/apps/examples/bridge/host_main.c
@@ -0,0 +1,253 @@
+/****************************************************************************
+ * examples/bridge/host_main.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *
+ *   Authors: 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 <sys/socket.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <errno.h>
+
+#include <net/if.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static uint8_t g_sndmessage[] = MESSAGE;
+static uint8_t g_rdbuffer[EXAMPLES_BRIDGE_SEND_IOBUFIZE];
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * bridge_main
+ ****************************************************************************/
+
+int main(int argc, char *argv[])
+{
+  struct sockaddr_in recvaddr;
+  struct sockaddr_in listenaddr;
+  struct sockaddr_in sendaddr;
+  socklen_t addrlen;
+  in_addr_t tmpaddr;
+  ssize_t nrecvd;
+  ssize_t nsent;
+  int optval;
+  int recvsd;
+  int sndsd;
+  int i;
+  int j;
+
+  /* Create a UDP send socket */
+
+  printf(LABEL "Create send socket\n");
+
+  sndsd = socket(PF_INET, SOCK_DGRAM, 0);
+  if (sndsd < 0)
+    {
+      fprintf(stderr, LABEL "ERROR: Failed to create send socket: %d\n", errno);
+      return EXIT_FAILURE;
+    }
+
+  /* Set socket to reuse address */
+
+  optval = 1;
+  if (setsockopt(sndsd, SOL_SOCKET, SO_REUSEADDR, (void*)&optval, sizeof(int)) < 0)
+    {
+      fprintf(stderr, LABEL "ERROR: setsockopt SO_REUSEADDR failure: %d\n", errno);
+      goto errout_with_sendsd;
+    }
+
+  /* Bind the socket to a local address */
+
+  sendaddr.sin_family      = AF_INET;
+  sendaddr.sin_port        = htons(EXAMPLES_BRIDGE_SEND_SNDPORT);
+  sendaddr.sin_addr.s_addr = htonl(EXAMPLES_BRIDGE_SEND_IPHOST);
+
+  if (bind(sndsd, (struct sockaddr*)&sendaddr, sizeof(struct sockaddr_in)) < 0)
+    {
+      printf(LABEL "bind failure: %d\n", errno);
+      goto errout_with_sendsd;
+    }
+
+  /* Create a UDP receive socket */
+
+  printf(LABEL "Create receive socket\n");
+
+  recvsd = socket(PF_INET, SOCK_DGRAM, 0);
+  if (recvsd < 0)
+    {
+      fprintf(stderr, LABEL "ERROR: Failed to create receive socket: %d\n", errno);
+      goto errout_with_sendsd;
+    }
+
+  /* Set socket to reuse address */
+
+  optval = 1;
+  if (setsockopt(recvsd, SOL_SOCKET, SO_REUSEADDR, (void*)&optval, sizeof(int)) < 0)
+    {
+      fprintf(stderr, LABEL "ERROR: setsockopt SO_REUSEADDR failure: %d\n", errno);
+      goto errout_with_recvsd;
+    }
+
+  /* Bind the socket to a local address */
+
+  listenaddr.sin_family      = AF_INET;
+  listenaddr.sin_port        = htons(EXAMPLES_BRIDGE_RECV_RECVPORT);
+  listenaddr.sin_addr.s_addr = htonl(EXAMPLES_BRIDGE_RECV_IPHOST);
+
+  if (bind(recvsd, (struct sockaddr*)&listenaddr, sizeof(struct sockaddr_in)) < 0)
+    {
+      fprintf(stderr, LABEL "ERROR: bind failure: %d\n", errno);
+      goto errout_with_recvsd;
+    }
+
+   /* Send a packet */
+
+   printf(LABEL "Sending %lu bytes\n", sizeof(g_sndmessage));
+   nsent = sendto(sndsd, g_sndmessage,  sizeof(g_sndmessage), 0,
+                 (struct sockaddr*)&sendaddr, sizeof(struct sockaddr_in));
+
+  /* Check for send errors */
+
+  if (nsent < 0)
+    {
+      fprintf(stderr, LABEL "ERROR: sendto failed: %d\n", errno);
+      goto errout_with_recvsd;
+    }
+  else if (nsent != sizeof(g_sndmessage))
+    {
+      fprintf(stderr, LABEL "ERROR: Bad send length: %ld Expected: %d\n",
+              (long)nsent, sizeof(g_sndmessage));
+      goto errout_with_recvsd;
+    }
+
+  printf(LABEL "Message sent successfully\n");
+
+  /* Read a packet */
+
+  printf(LABEL "Receiving up to %d bytes\n",  EXAMPLES_BRIDGE_SEND_IOBUFIZE);
+
+  addrlen = sizeof(struct sockaddr_in);
+  nrecvd = recvfrom(recvsd, g_rdbuffer, EXAMPLES_BRIDGE_SEND_IOBUFIZE, 0,
+                    (struct sockaddr*)&recvaddr, &addrlen);
+
+  tmpaddr = ntohl(recvaddr.sin_addr.s_addr);
+  printf(LABEL "Received %ld bytes from %d.%d.%d.%d:%d\n",
+         (long)nrecvd,
+         tmpaddr >> 24, (tmpaddr >> 16) & 0xff,
+         (tmpaddr >> 8) & 0xff, tmpaddr & 0xff,
+         ntohs(recvaddr.sin_port));
+
+  /* Check for a receive error or zero bytes received.  The negative
+   * return value indicates a receive error; Zero would mean that the
+   * other side of the "connection" performed an "orderly" shutdown.
+   * This should not occur with a UDP socket and so must also be an
+   * error of some kind.
+   */
+
+  if (nrecvd <= 0)
+    {
+      if (nrecvd < 0)
+        {
+          fprintf(stderr, LABEL "ERROR: recvfrom failed: %d\n", errno);
+        }
+      else
+        {
+          fprintf(stderr, LABEL "ERROR: recvfrom returned zero\n");
+        }
+
+      goto errout_with_recvsd;
+    }
+
+  if (nrecvd != nrecvd)
+    {
+      fprintf(stderr, LABEL "ERROR: Number of bytes received differs from number sent\n");
+    }
+
+  /* Dump the received packet */
+
+  for (i = 0, j = 0; i < nrecvd; i++)
+    {
+      if ( g_rdbuffer[i] == ' ' && j >= 64)
+        {
+          putchar('\n');
+          j = 0;
+        }
+      else if (isprint(g_rdbuffer[i]))
+        {
+          putchar(g_rdbuffer[i]);
+          j++;
+        }
+      else if (g_rdbuffer[i] == '\n')
+        {
+          putchar('\n');
+          j = 0;
+        }
+      else if (g_rdbuffer[i] != '\r')
+        {
+          printf("\%03o", g_rdbuffer[i]);
+          j += 4;
+        }
+    }
+
+  close(recvsd);
+  close(recvsd);
+  return EXIT_SUCCESS;
+
+errout_with_recvsd:
+   close(recvsd);
+errout_with_sendsd:
+   close(sndsd);
+   return EXIT_FAILURE;
+}
+
diff --git a/apps/examples/bridge/host_net1.c b/apps/examples/bridge/host_net1.c
new file mode 100644
index 000000000..8f9c85f29
--- /dev/null
+++ b/apps/examples/bridge/host_net1.c
@@ -0,0 +1,96 @@
+/****************************************************************************
+ * examples/bridge/host_net1.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *
+ *   Authors: 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 "bridge_config.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Send on network 1 */
+
+#define EXAMPLES_BRIDGE_SEND_IFNAME    CONFIG_EXAMPLES_BRIDGE_NET1_IFNAME
+#define EXAMPLES_BRIDGE_SEND_RECVPORT  CONFIG_EXAMPLES_BRIDGE_NET1_RECVPORT
+#define EXAMPLES_BRIDGE_SEND_SNDPORT   CONFIG_EXAMPLES_BRIDGE_NET1_SNDPORT
+#define EXAMPLES_BRIDGE_SEND_IOBUFIZE  CONFIG_EXAMPLES_BRIDGE_NET1_IOBUFIZE
+#ifdef CONFIG_EXAMPLES_BRIDGE_NET1_NOMAC
+#  define EXAMPLES_BRIDGE_SEND_NOMAC
+#endif
+#define EXAMPLES_BRIDGE_SEND_MACADDR   CONFIG_EXAMPLES_BRIDGE_NET1_MACADDR
+#define EXAMPLES_BRIDGE_SEND_IPADDR    CONFIG_EXAMPLES_BRIDGE_NET1_IPADDR
+#define EXAMPLES_BRIDGE_SEND_DRIPADDR  CONFIG_EXAMPLES_BRIDGE_NET1_DRIPADDR
+#define EXAMPLES_BRIDGE_SEND_NETMASK   CONFIG_EXAMPLES_BRIDGE_NET1_NETMASK
+#define EXAMPLES_BRIDGE_SEND_IPHOST    CONFIG_EXAMPLES_BRIDGE_NET1_IPHOST
+#define EXAMPLES_BRIDGE_SEND_STACKSIZE CONFIG_EXAMPLES_BRIDGE_NET1_STACKSIZE
+#define EXAMPLES_BRIDGE_SEND_PRIORITY  CONFIG_EXAMPLES_BRIDGE_NET1_PRIORITY
+
+/* Receive on network 2 */
+
+#define EXAMPLES_BRIDGE_RECV_IFNAME    CONFIG_EXAMPLES_BRIDGE_NET2_IFNAME
+#define EXAMPLES_BRIDGE_RECV_RECVPORT  CONFIG_EXAMPLES_BRIDGE_NET2_RECVPORT
+#define EXAMPLES_BRIDGE_RECV_SNDPORT   CONFIG_EXAMPLES_BRIDGE_NET2_SNDPORT
+#define EXAMPLES_BRIDGE_RECV_IOBUFIZE  CONFIG_EXAMPLES_BRIDGE_NET2_IOBUFIZE
+#ifdef CONFIG_EXAMPLES_BRIDGE_NET2_NOMAC
+#  define EXAMPLES_BRIDGE_RECV_NOMAC
+#endif
+#define EXAMPLES_BRIDGE_RECV_MACADDR   CONFIG_EXAMPLES_BRIDGE_NET2_MACADDR
+#define EXAMPLES_BRIDGE_RECV_IPADDR    CONFIG_EXAMPLES_BRIDGE_NET2_IPADDR
+#define EXAMPLES_BRIDGE_RECV_DRIPADDR  CONFIG_EXAMPLES_BRIDGE_NET2_DRIPADDR
+#define EXAMPLES_BRIDGE_RECV_NETMASK   CONFIG_EXAMPLES_BRIDGE_NET2_NETMASK
+#define EXAMPLES_BRIDGE_RECV_IPHOST    CONFIG_EXAMPLES_BRIDGE_NET2_IPHOST
+#define EXAMPLES_BRIDGE_RECV_STACKSIZE CONFIG_EXAMPLES_BRIDGE_NET2_STACKSIZE
+#define EXAMPLES_BRIDGE_RECV_PRIORITY  CONFIG_EXAMPLES_BRIDGE_NET2_PRIORITY
+
+#define LABEL "NET1->2: "
+
+#define MESSAGE \
+  "Great ambition is the passion of a great character. Those endowed" \
+  "with it may perform very good or very bad acts. All depends on the" \
+  "principles which direct them. -- Napoleon Bonaparte"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: main
+ ****************************************************************************/
+
+#include "host_main.c"
diff --git a/apps/examples/bridge/host_net2.c b/apps/examples/bridge/host_net2.c
new file mode 100644
index 000000000..32fdaa6ed
--- /dev/null
+++ b/apps/examples/bridge/host_net2.c
@@ -0,0 +1,95 @@
+/****************************************************************************
+ * examples/bridge/host_net2.c
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *
+ *   Authors: 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 "bridge_config.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Send on network 1 */
+
+#define EXAMPLES_BRIDGE_SEND_IFNAME    CONFIG_EXAMPLES_BRIDGE_NET2_IFNAME
+#define EXAMPLES_BRIDGE_SEND_RECVPORT  CONFIG_EXAMPLES_BRIDGE_NET2_RECVPORT
+#define EXAMPLES_BRIDGE_SEND_SNDPORT   CONFIG_EXAMPLES_BRIDGE_NET2_SNDPORT
+#define EXAMPLES_BRIDGE_SEND_IOBUFIZE  CONFIG_EXAMPLES_BRIDGE_NET2_IOBUFIZE
+#ifdef CONFIG_EXAMPLES_BRIDGE_NET2_NOMAC
+#  define EXAMPLES_BRIDGE_SEND_NOMAC
+#endif
+#define EXAMPLES_BRIDGE_SEND_MACADDR   CONFIG_EXAMPLES_BRIDGE_NET2_MACADDR
+#define EXAMPLES_BRIDGE_SEND_IPADDR    CONFIG_EXAMPLES_BRIDGE_NET2_IPADDR
+#define EXAMPLES_BRIDGE_SEND_DRIPADDR  CONFIG_EXAMPLES_BRIDGE_NET2_DRIPADDR
+#define EXAMPLES_BRIDGE_SEND_NETMASK   CONFIG_EXAMPLES_BRIDGE_NET2_NETMASK
+#define EXAMPLES_BRIDGE_SEND_IPHOST    CONFIG_EXAMPLES_BRIDGE_NET2_IPHOST
+#define EXAMPLES_BRIDGE_SEND_STACKSIZE CONFIG_EXAMPLES_BRIDGE_NET2_STACKSIZE
+#define EXAMPLES_BRIDGE_SEND_PRIORITY  CONFIG_EXAMPLES_BRIDGE_NET2_PRIORITY
+
+/* Receive on network 2 */
+
+#define EXAMPLES_BRIDGE_RECV_IFNAME    CONFIG_EXAMPLES_BRIDGE_NET1_IFNAME
+#define EXAMPLES_BRIDGE_RECV_RECVPORT  CONFIG_EXAMPLES_BRIDGE_NET1_RECVPORT
+#define EXAMPLES_BRIDGE_RECV_SNDPORT   CONFIG_EXAMPLES_BRIDGE_NET1_SNDPORT
+#define EXAMPLES_BRIDGE_RECV_IOBUFIZE  CONFIG_EXAMPLES_BRIDGE_NET1_IOBUFIZE
+#ifdef CONFIG_EXAMPLES_BRIDGE_NET1_NOMAC
+#  define EXAMPLES_BRIDGE_RECV_NOMAC
+#endif
+#define EXAMPLES_BRIDGE_RECV_MACADDR   CONFIG_EXAMPLES_BRIDGE_NET1_MACADDR
+#define EXAMPLES_BRIDGE_RECV_IPADDR    CONFIG_EXAMPLES_BRIDGE_NET1_IPADDR
+#define EXAMPLES_BRIDGE_RECV_DRIPADDR  CONFIG_EXAMPLES_BRIDGE_NET1_DRIPADDR
+#define EXAMPLES_BRIDGE_RECV_NETMASK   CONFIG_EXAMPLES_BRIDGE_NET1_NETMASK
+#define EXAMPLES_BRIDGE_RECV_IPHOST    CONFIG_EXAMPLES_BRIDGE_NET1_IPHOST
+#define EXAMPLES_BRIDGE_RECV_STACKSIZE CONFIG_EXAMPLES_BRIDGE_NET1_STACKSIZE
+#define EXAMPLES_BRIDGE_RECV_PRIORITY  CONFIG_EXAMPLES_BRIDGE_NET1_PRIORITY
+
+#define LABEL "NET2->1: "
+
+#define MESSAGE \
+  "Ideas are more powerful than guns. We would not let our enemies have" \
+  "guns, why should we let them have ideas. -- Joseph Stalin"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: main
+ ****************************************************************************/
+
+#include "host_main.c"