WRAPInstall

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Install notes/instruction for my WRAP 1E

Specs: 

CPU:
    266 MHz AMD Geode SC1100 CPU
Memory:
    128mb
Management:
    Watchdog timer built into CPU;
    LM77 thermal monitor stops system on excessive temperature.
User interface: 
    Three front panel LEDs, 
    Pushbutton switch, can be controlled through CPU GPIO pins. 
    Console I/O redirected to serial port.
Expansion:
    LPC bus for adding serial ports, 
    ISA style I/O, GPIO etc. 
    I2C bus for user interface, software lock devices etc.
Connectivity: 
    3 Ethernet channels (National DP83816), 
    1 miniPCI slot, 
    1 serial port (console).

Basics

  1. WRAP single board computer from wisp-router.com via Erica
  2. 128 meg compact flash card from our old camera, new ones use SD

Get sources

I use gentoo as my build hosts, so replace emerge with your favorite package handler or build from src. 

mkdir /home/pee/glug
cd /home/pee/glug
emerge --update subversion
svn co svn://uclibc.org/trunk/buildroot
USE="~x86" emerge --update cogito
cg-clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git linux-2.6
wget http://www.pcengines.ch/wbios110.zip
emerge --update grub

setup linux sources

Make some links, and we need gen_init_cpio 

cd /home/pee/glug/linux-2.6
make allnoconfig
make usr/gen_init_cpio

setup buildroot 

cd /home/pee/glug/buildroot
make menuconfig
make

Prepping flash card

  1. insert card wherever
  2. find out the device (for me it shows up as PCMCIA and the device is /dev/hde)
  3. flatten it 
     dd if=/dev/zero of=/dev/hde bs=512 count=1
  4. partition it 
     fdisk /dev/hde
    i did a 16M first partition (/dev/hde1) and a second partition (/dev/hde2) using the rest of the flash card

bios manhandling if using pxe

  1. unzip the http://www.pcengines.ch/wbios110.zip | bios ]
  2. make a new rom
  3. add pxe stuff to rom

patches

Entropy patches

I wasn't getting enough entropy with just a flash card and minimal startup to actually be able to ssh into the box. Dropbear would hang blocked on /dev/random. The following patch helps me out a bit there. The ethernet bits i figured out on my own, and the serial bits are from the gnumonks grouter svn repo, that i found after learning about the magical SA_SAMPLE_RANDOM flag. Now I can pingflood or mash the console to get entropy o.0.

linux-2.6.15.patch 

diff --git a/drivers/net/natsemi.c b/drivers/net/natsemi.c
index 9d6d254..55d6422 100644
--- a/drivers/net/natsemi.c
+++ b/drivers/net/natsemi.c
@@ -1535,7 +1535,7 @@ static int netdev_open(struct net_device
        /* Reset the chip, just in case. */
        natsemi_reset(dev);
 
-       i = request_irq(dev->irq, &intr_handler, SA_SHIRQ, dev->name, dev);
+       i = request_irq(dev->irq, &intr_handler, SA_SHIRQ | SA_SAMPLE_RANDOM, dev->name, dev);
        if (i) return i;
 
        if (netif_msg_ifup(np))
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index d2bcd1f..d2467e6 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -1394,7 +1394,7 @@ static int serial_link_irq_chain(struct 
                spin_unlock_irq(&i->lock);
 
                ret = request_irq(up->port.irq, serial8250_interrupt,
-                                 irq_flags, "serial", i);
+                                 irq_flags | SA_SAMPLE_RANDOM, "serial", i);
                if (ret < 0)
                        serial_do_unlink(i, up);
        }

device_table.txt patch

Add a device not so we can use the watchdog on the WRAP

device_table.txt 

Index: target/generic/device_table.txt
===================================================================
--- target/generic/device_table.txt     (revision 13027)
+++ target/generic/device_table.txt     (working copy)
@@ -73,6 +73,8 @@
 /dev/psaux     c       666 0   0       10      1       0       0       -
 #/dev/ppp      c       666 0   0       108     0       -       -       -
 
+/dev/watchdog  c       600 0   0       130     10      -       -       -
+
 # Input stuff
 /dev/input             d   755 0       0       -       -       -       -       -
 /dev/input/mice            c   640     0       0       13      63      0       0       -

add cpio support for initramfs inclusion

With linux-2.6 you can include an initramfs image inside the kernel binary and use it as "early userspace". I don't intend to stop using it early :), but you get the point. Down with initrd!. And by that I mean, i'm apparently too retarded to keep my image/initrds together and updated.

target/Config.in 

Index: target/Config.in
===================================================================
--- target/Config.in    (revision 13031)
+++ target/Config.in    (working copy)
@@ -7,6 +7,7 @@
 source "target/jffs2/Config.in"
 source "target/squashfs/Config.in"
 source "target/tar/Config.in"
+source "target/cpio/Config.in"
 
 comment "bootloader for target device"

target/cpio/cpioroot.mk 

Index: target/cpio/cpioroot.mk
===================================================================
--- target/cpio/cpioroot.mk (revision 0)
+++ target/cpio/cpioroot.mk (revision 0)
@@ -0,0 +1,51 @@
+#############################################################
+#
+# tar to archive target filesystem
+#
+#############################################################
+
+CPIO_OPTS := $(strip $(subst ",, $(BR2_TARGET_ROOTFS_CPIO_OPTIONS)))
+CPIO_DIR := $(BR2_TARGET_CPIO_KERNEL_SOURCE_DIR)
+#"
+cpioroot: host-fakeroot makedevs $(STAGING_DIR)/fakeroot.env
+   -@find $(TARGET_DIR) -type f -perm +111 | xargs $(STRIP) 2>/dev/null || true;
+   @rm -rf $(TARGET_DIR)/usr/man
+   @rm -rf $(TARGET_DIR)/usr/info
+   -/sbin/ldconfig -r $(TARGET_DIR) 2>/dev/null
+   # Use fakeroot to pretend all target binaries are owned by root
+   -$(STAGING_DIR)/usr/bin/fakeroot \
+       -i $(STAGING_DIR)/fakeroot.env \
+       -s $(STAGING_DIR)/fakeroot.env -- \
+       chown -R root:root $(TARGET_DIR)
+   # Use fakeroot to pretend to create all needed device nodes
+   $(STAGING_DIR)/usr/bin/fakeroot \
+       -i $(STAGING_DIR)/fakeroot.env \
+       -s $(STAGING_DIR)/fakeroot.env -- \
+       $(STAGING_DIR)/bin/makedevs \
+       -d $(TARGET_DEVICE_TABLE) \
+       $(TARGET_DIR)
+   # Use fakeroot so tar believes the previous fakery
+   $(STAGING_DIR)/usr/bin/fakeroot \
+       -i $(STAGING_DIR)/fakeroot.env \
+       -s $(STAGING_DIR)/fakeroot.env -- \
+       sh $(CPIO_DIR)/scripts/gen_initramfs_list.sh $(TARGET_DIR) > cpioList
+   # Use fakeroot so tar believes the previous fakery
+   $(STAGING_DIR)/usr/bin/fakeroot \
+       -i $(STAGING_DIR)/fakeroot.env \
+       -s $(STAGING_DIR)/fakeroot.env -- \
+       $(CPIO_DIR)/usr/gen_init_cpio cpioList > $(IMAGE).cpio
+
+cpioroot-source:
+
+cpioroot-clean:
+
+cpioroot-dirclean:
+
+#############################################################
+#
+# Toplevel Makefile options
+#
+#############################################################
+ifeq ($(strip $(BR2_TARGET_ROOTFS_CPIO)),y)
+TARGETS+=cpioroot
+endif

target/cpio/Config.in 

Index: target/cpio/Config.in
===================================================================
--- target/cpio/Config.in   (revision 0)
+++ target/cpio/Config.in   (revision 0)
@@ -0,0 +1,13 @@
+config BR2_TARGET_ROOTFS_CPIO
+   bool "CPIO archive the root filesystem"
+   default n
+   help
+     Build a cpi archive of the root filesystem for initramfs
+
+config BR2_TARGET_CPIO_KERNEL_SOURCE_DIR
+   string "path to your current kernel source directory"
+   depends on BR2_TARGET_ROOTFS_CPIO
+   default "/usr/src/linux"
+   help
+       Point me at your kernel source for scripts/gen usr/gen_cpio
+

Ebtables

Filtering at the bridge level

package/Config.in 

Index: package/Config.in
===================================================================
--- package/Config.in   (revision 13080)
+++ package/Config.in   (working copy)
@@ -40,6 +40,7 @@
 source "package/dnsmasq/Config.in"
 source "package/dropbear/Config.in"
 source "package/e2fsprogs/Config.in"
+source "package/ebtables/Config.in"
 source "package/fakeroot/Config.in"
 source "package/file/Config.in"
 source "package/freetype/Config.in"

package/ebtables/ebtables.patch 

Index: package/ebtables/ebtables.patch
===================================================================
--- package/ebtables/ebtables.patch     (revision 0)
+++ package/ebtables/ebtables.patch     (revision 0)
@@ -0,0 +1,49 @@
+diff -ru ebtables-orig/Makefile ebtables-v2.0.8-rc1/Makefile
+--- ebtables-orig/Makefile 2005-11-13 13:10:27.000000000 +0000
++++ ebtables-v2.0.8-rc1/Makefile       2006-01-04 04:44:15.000000000 +0000
+@@ -7,10 +7,10 @@
+ # default paths
+ LIBDIR:=/usr/lib
+ MANDIR:=/usr/local/man
+-BINDIR:=/usr/local/sbin
++BINDIR:=/usr/sbin
+ ETCDIR:=/etc
+-INITDIR:=/etc/rc.d/init.d
+-SYSCONFIGDIR:=/etc/sysconfig
++INITDIR:=/etc/init.d
++SYSCONFIGDIR:=/etc/ebtables
+ DESTDIR:=
+ 
+ # include DESTDIR param
+@@ -37,7 +37,7 @@
+ 
+ OBJECTS:=$(OBJECTS2) ebtables.o $(EXT_OBJS) $(EXT_LIBS)
+ 
+-KERNEL_INCLUDES?=include/
++KERNEL_INCLUDES?=$(LINUX_HEADERS_DIR)
+ 
+ ETHERTYPESPATH?=$(ETCDIR)
+ ETHERTYPESFILE:=$(ETHERTYPESPATH)/ethertypes
+@@ -127,12 +127,10 @@
+  cat ebtables.sysv | sed 's/__EXEC_PATH__/$(tmp1)/g' | sed 's/__SYSCONFIG__/$(tmp2)/g' > ebtables.sysv_
+  install -m 0755 -o root -g root ebtables.sysv_ $(INITDIR)/ebtables
+  cat ebtables-config | sed 's/__SYSCONFIG__/$(tmp2)/g' > ebtables-config_
++ mkdir -p $(SYSCONFIGDIR)
+  install -m 0600 -o root -g root ebtables-config_ $(SYSCONFIGDIR)/ebtables-config
+  rm -f ebtables-save_ ebtables.sysv_ ebtables-config_
+ 
+-$(MANDIR)/man8/ebtables.8: ebtables.8
+- mkdir -p $(@D)
+- install -m 0644 -o root -g root $< $@
+ 
+ $(ETHERTYPESFILE): ethertypes
+  mkdir -p $(@D)
+@@ -145,7 +143,7 @@
+  install -m 0755 -o root -g root ebtables-restore $(BINDIR)/ebtables-restore
+ 
+ .PHONY: install
+-install: $(MANDIR)/man8/ebtables.8 $(ETHERTYPESFILE) exec scripts
++install: $(ETHERTYPESFILE) exec scripts
+  mkdir -p $(LIBDIR)
+  install -m 0755 extensions/*.so $(LIBDIR)
+  install -m 0755 *.so $(LIBDIR)

package/ebtables/ebtables.mk 

Index: package/ebtables/ebtables.mk
===================================================================
--- package/ebtables/ebtables.mk        (revision 0)
+++ package/ebtables/ebtables.mk        (revision 0)
@@ -0,0 +1,72 @@
+#############################################################
+#
+# bridgeutils - User Space Program For Controlling Bridging
+#
+#############################################################
+#
+EBTABLES_VERSION=2.0.8-rc1
+EBTABLES_SOURCE_URL=http://$(BR2_SOURCEFORGE_MIRROR).dl.sourceforge.net/sourceforge/ebtables/
+EBTABLES_SOURCE=ebtables-v$(EBTABLES_VERSION).tar.gz
+EBTABLES_BUILD_DIR=$(BUILD_DIR)/ebtables-v$(EBTABLES_VERSION)
+EBTABLES_TARGET_BINARY:=usr/sbin/ebtables
+EBTABLES_TARGET_BINARY_SAVE:=usr/sbin/ebtables-save
+EBTABLES_TARGET_BINARY_RESTORE:=usr/sbin/ebtables-restore
+
+$(DL_DIR)/$(EBTABLES_SOURCE):
+   $(WGET) -P $(DL_DIR) $(EBTABLES_SOURCE_URL)/$(EBTABLES_SOURCE)
+
+$(EBTABLES_BUILD_DIR)/.unpacked: $(DL_DIR)/$(EBTABLES_SOURCE)
+  zcat $(DL_DIR)/$(EBTABLES_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
+  patch -p1 -d $(EBTABLES_BUILD_DIR) < package/ebtables/ebtables.patch
+  touch $(EBTABLES_BUILD_DIR)/.unpacked
+
+$(EBTABLES_BUILD_DIR)/.configured: $(EBTABLES_BUILD_DIR)/.unpacked
+  (cd $(EBTABLES_BUILD_DIR); \
+       $(MAKE) -C $(EBTABLES_BUILD_DIR) \
+       $(TARGET_CONFIGURE_OPTS) \
+       CFLAGS="$(TARGET_CFLAGS)" \
+       LINUX_HEADERS_DIR="$(LINUX_HEADERS_DIR)" \
+        DESTDIR=$(TARGET_DIR) \
+       $(EBTABLES_BUILD_DIR)\
+  );
+  touch $(EBTABLES_BUILD_DIR)/.configured
+
+$(EBTABLES_BUILD_DIR)/ebtables: $(EBTABLES_BUILD_DIR)/.configured
+# (cd $(EBTABLES_BUILD_DIR); \
+       $(MAKE) -C $(EBTABLES_BUILD_DIR) \
+       $(TARGET_CONFIGURE_OPTS) \
+       CFLAGS="$(TARGET_CFLAGS)" \
+       LINUX_HEADERS_DIR="$(LINUX_HEADERS_DIR)" \
+        DESTDIR=$(TARGET_DIR) \
+       $(EBTABLES_BUILD_DIR) install
+#      $(EBTABLES_BUILD_DIR) install\
+# );
+
+$(TARGET_DIR)/$(EBTABLES_TARGET_BINARY): $(EBTABLES_BUILD_DIR)/ebtables
+  $(MAKE) -C $(EBTABLES_BUILD_DIR) \
+  $(TARGET_CONFIGURE_OPTS) \
+  CFLAGS="$(TARGET_CFLAGS)" \
+  LINUX_HEADERS_DIR="$(LINUX_HEADERS_DIR)" \
+  DESTDIR=$(TARGET_DIR) \
+  $(EBTABLES_BUILD_DIR) install
+  $(STRIP) $(TARGET_DIR)/$(EBTABLES_TARGET_BINARY)
+  $(STRIP) $(TARGET_DIR)/usr/lib/ebtables/*.so
+
+ebtables: $(TARGET_DIR)/$(EBTABLES_TARGET_BINARY)
+
+ebtables-source: $(DL_DIR)/$(EBTABLES_SOURCE)
+
+ebtables-clean:
+  #$(MAKE) DESTDIR=$(TARGET_DIR) CC=$(TARGET_CC) -C $(BRIDGE_BUILD_DIR) uninstall
+  -$(MAKE) -C $(EBTABLES_BUILD_DIR) clean
+
+ebtables-dirclean:
+  rm -rf $(EBTABLES_BUILD_DIR)
+#############################################################
+#
+# Toplevel Makefile options
+#
+#############################################################
+ifeq ($(strip $(BR2_PACKAGE_EBTABLES)),y)
+TARGETS+=ebtables
+endif

package/ebtables/Config.in 

Index: package/ebtables/Config.in
===================================================================
--- package/ebtables/Config.in  (revision 0)
+++ package/ebtables/Config.in  (revision 0)
@@ -0,0 +1,7 @@
+config BR2_PACKAGE_EBTABLES
+  bool "ebtables"
+  default n
+  help
+    Ethernet bridge filtering
+
+    http://ebtables.sourceforge.net/

General info while running

/proc/cpuinfo 

processor       : 0
vendor_id       : Geode by NSC
cpu family      : 5
model           : 9
model name      : Unknown
stepping        : 1
cpu MHz         : 266.700
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu tsc msr cx8 cmov mmx cxmmx
bogomips        : 534.37

/proc/interrupts 

           CPU0       
  0:    1210541          XT-PIC  timer
  2:          0          XT-PIC  cascade
  4:        919          XT-PIC  serial
 10:       2613          XT-PIC  eth0
 14:       2697          XT-PIC  ide0
NMI:          0 
ERR:          0

External Resources

  1. busybox
  2. uclibc
  3. gentoo
  4. PC Engines
  5. embedded LFS
  6. gnumonks grouter
Retrieved from "http://wiki.erkkila.org/index.php/WRAPInstall"
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