[[PageOutline]]

 * 注意: 非純正ファームウェアで無線を使うと(日本では)電波法違反になる可能性がある。
 * see also [../../Hardware/WZR-HP-AG300H]

 = OpenWRT =
 * [http://www.linuxquestions.org/questions/linux-networking-3/which-do-you-prefer-openwrt-dd-wrt-or-tomato-796756/ Which do you prefer: OpenWRT, DD-WRT or Tomato?]
 * [http://munin-monitoring.org/wiki/OpenWRT-HowTo OpenWRT-HowTo - Munin - Trac]
 * [http://wiki.openwrt.org/doc/howto/secure.access Secure your router's access - OpenWrt Wiki]

 = pppd =
 * linkup時に /lib/netifd/ppp-up が実行される
  * /etc/ppp/ip-up と同じような使い方が可能？
  * Debian ppp-2.4.5/pppd/ipcp.c
{{{#!cc
    /*
     * Execute the ip-up script, like this:
     *	/etc/ppp/ip-up interface tty speed local-IP remote-IP
     */
}}}
 * 具体例
{{{
pppoe-wan eth1 0 114.159.68.126 118.23.8.36 wan
}}}

 * ONUの再起動(下記)などでpppdが終了してしまった場合、「/etc/init.d/network start」により全てのインタフェースがリセットされ再接続される
{{{
Jun 12 15:57:35 starseed kern.info kernel: [   93.040000] eth1: link down
Jun 12 15:57:39 starseed daemon.info pppd[1232]: No response to 5 echo-requests
Jun 12 15:57:39 starseed daemon.notice pppd[1232]: Serial link appears to be disconnected.
Jun 12 15:57:39 starseed daemon.info pppd[1232]: Connect time 1.1 minutes.
Jun 12 15:57:39 starseed daemon.info pppd[1232]: Sent 27281 bytes, received 19359 bytes.
Jun 12 15:57:40 starseed daemon.notice netifd: Interface 'wan' has lost the connection
Jun 12 15:57:40 starseed daemon.notice pppd[1232]: Modem hangup
Jun 12 15:57:40 starseed daemon.notice pppd[1232]: Connection terminated.

(snip)

Jun 12 15:58:30 starseed daemon.info pppd[4014]: CHAP authentication failed: permission denied
Jun 12 15:58:30 starseed daemon.err pppd[4014]: CHAP authentication failed
Jun 12 15:58:30 starseed daemon.notice pppd[4014]: Connection terminated.
Jun 12 15:58:30 starseed daemon.info pppd[4014]: Exit.
Jun 12 15:58:30 starseed daemon.notice netifd: Interface 'wan' is now down
Jun 12 15:58:30 starseed kern.info kernel: [  148.030000] eth1: link down
}}}
 = cross complie =
 * [http://wiki.openwrt.org/about/toolchain OpenWrt Buildroot – About - OpenWrt Wiki]
 * [http://d.hatena.ne.jp/sdkt4a/20080814/1218655463 OpenWrtのクロスコンパイル環境をDebianに構築してhello,worldするよ！ - sdkt4aの日記]

 * Ubuntu 12.04 LTS x86_64

 * mitty@precise:~$ sudo aptitude install subversion build-essential libncurses5-dev zlib1g-dev gawk gcc-multilib flex git-core gettext libssl-dev xsltproc bison

 * mitty@precise:~$ mkdir openwrt

 * mitty@precise:~/openwrt$ svn co svn://svn.openwrt.org/openwrt/trunk/
{{{
(snip)

 U   trunk
Checked out revision 32026.
}}}

 * mitty@precise:~/openwrt/trunk$ wget http://downloads.openwrt.org/snapshots/trunk/ar71xx/config
 * mitty@precise:~/openwrt$ cp config trunk/.config

 * mitty@precise:~/openwrt/trunk$ make prereq
{{{
Collecting package info: done
Collecting target info: done
Checking 'working-make'... ok.
Checking 'case-sensitive-fs'... ok.
Checking 'getopt'... ok.
Checking 'fileutils'... ok.
Checking 'working-gcc'... ok.
Checking 'working-g++'... ok.
Checking 'ncurses'... ok.
Checking 'zlib'... ok.
Checking 'gawk'... ok.
Checking 'flex'... ok.
Checking 'unzip'... ok.
Checking 'bzip2'... ok.
Checking 'patch'... ok.
Checking 'perl'... ok.
Checking 'python'... ok.
Checking 'wget'... ok.
Checking 'git'... ok.
Checking 'gnutar'... ok.
Checking 'svn'... ok.
Checking 'gnu-find'... ok.
Checking 'getopt-extended'... ok.
Checking 'non-root'... ok.
}}}

 * mitty@precise:~/openwrt/trunk$ make -j 5 V=99 2>&1 | tee build.log | grep -i error
{{{
(snip)

make[2]: [package/rootfs-prepare] Error 2 (ignored)
Compression errors: 0
[mkmylofw] Error: file /home/mitty/openwrt/trunk/build_dir/linux-ar71xx_generic/tmp/vmlinux-wp543.bin.lzma is too big
make[5]: [install] Error 1 (ignored)
[mkmylofw] Error: file /home/mitty/openwrt/trunk/build_dir/linux-ar71xx_generic/tmp/vmlinux-wp543.bin.lzma is too big
make[5]: [install] Error 1 (ignored)
[mkmylofw] Error: file /home/mitty/openwrt/trunk/build_dir/linux-ar71xx_generic/tmp/vmlinux-wp543.bin.lzma is too big
make[5]: [install] Error 1 (ignored)
[mkmylofw] Error: file /home/mitty/openwrt/trunk/build_dir/linux-ar71xx_generic/tmp/vmlinux-wp543.bin.lzma is too big
make[5]: [install] Error 1 (ignored)
[mkmylofw] Error: file /home/mitty/openwrt/trunk/build_dir/linux-ar71xx_generic/tmp/vmlinux-wpe72.bin.lzma is too big
make[5]: [install] Error 1 (ignored)
Compression errors: 0
[mkmylofw] Error: file /home/mitty/openwrt/trunk/build_dir/linux-ar71xx_generic/tmp/vmlinux-wp543.bin.lzma is too big
make[5]: [install] Error 1 (ignored)
[mkmylofw] Error: file /home/mitty/openwrt/trunk/build_dir/linux-ar71xx_generic/tmp/vmlinux-wp543.bin.lzma is too big
make[5]: [install] Error 1 (ignored)
[mkmylofw] Error: file /home/mitty/openwrt/trunk/build_dir/linux-ar71xx_generic/tmp/vmlinux-wp543.bin.lzma is too big
make[5]: [install] Error 1 (ignored)
[mkmylofw] Error: file /home/mitty/openwrt/trunk/build_dir/linux-ar71xx_generic/tmp/vmlinux-wp543.bin.lzma is too big
make[5]: [install] Error 1 (ignored)
[mkmylofw] Error: file /home/mitty/openwrt/trunk/build_dir/linux-ar71xx_generic/tmp/vmlinux-wpe72.bin.lzma is too big
make[5]: [install] Error 1 (ignored)
make[3]: [/home/mitty/openwrt/trunk/bin/ar71xx/OpenWrt-ImageBuilder-ar71xx_generic-for-Linux-x86_64.tar.bz2] Error 1 (ignored)
make[3]: [/home/mitty/openwrt/trunk/bin/ar71xx/OpenWrt-ImageBuilder-ar71xx_generic-for-Linux-x86_64.tar.bz2] Error 1 (ignored)
}}}

 * mitty@precise:~/openwrt$ cat > test.c
{{{#!cc
#include <stdio.h>

int main(void) {
        printf("char        -> %ld\n", sizeof(char));
        printf("short       -> %ld\n", sizeof(short));
        printf("int         -> %ld\n", sizeof(int));
        printf("long        -> %ld\n", sizeof(long));
        printf("long long   -> %ld\n", sizeof(long long));
        printf("float       -> %ld\n", sizeof(float));
        printf("double      -> %ld\n", sizeof(double));
        printf("long double -> %ld\n", sizeof(long double));

        return 0;
}
}}}
 * mitty@precise:~/openwrt$ gcc test.c -o test.x86
 * mitty@precise:~/openwrt$ ./trunk/staging_dir/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/mips-openwrt-linux-gcc test.c -o test
{{{
mips-openwrt-linux-gcc: warning: environment variable 'STAGING_DIR' not defined
mips-openwrt-linux-gcc: warning: environment variable 'STAGING_DIR' not defined
mips-openwrt-linux-gcc: warning: environment variable 'STAGING_DIR' not defined
}}}

 * mitty@precise:~/openwrt$ file test test.x86
{{{
test:     ELF 32-bit MSB executable, MIPS, MIPS32 rel2 version 1, dynamically linked (uses shared libs), with unknown capability 0x41000000 = 0xf676e75, with unknown capability 0x10000 = 0x70403, not stripped
test.x86: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0x53177842cbc614b1f4c71bae24df294892906443, not stripped
}}}

 * mitty@precise:~/openwrt$ ./test.x86
{{{
char        -> 1
short       -> 2
int         -> 4
long        -> 8
long long   -> 8
float       -> 4
double      -> 8
long double -> 16
}}}

 * mitty@precise:~/openwrt$ ./test
{{{
bash: ./test: cannot execute binary file
}}}

 * mitty@starseed:~$ uname -a
{{{
Linux starseed 3.3.6 #1 Thu May 17 02:19:20 PDT 2012 mips GNU/Linux
}}}
 * mitty@starseed:~$ ./test
{{{
char        -> 1
short       -> 2
int         -> 4
long        -> 4
long long   -> 8
float       -> 4
double      -> 8
long double -> 8
}}}
 == subversion ==
 * 2012/05/20現在、リポジトリからsubversionが消えている


 * backfire 10.03.1からパッケージを持ってこようとしたが、結局SEGVで動かなかった

 * root@OpenWrt:~# opkg update
 * root@OpenWrt:~# opkg install zlib libneon libaprutil
{{{
 * opkg_install_cmd: Cannot install package libaprutil.
}}}
 * root@OpenWrt:~# opkg install diffutils
{{{
Installing diffutils (3.0-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/diffutils_3.0-1_ar71xx.ipk.
Collected errors:
 * check_data_file_clashes: Package diffutils wants to install file /usr/bin/cmp
        But that file is already provided by package  * busybox
 * opkg_install_cmd: Cannot install package diffutils.
}}}
 * root@OpenWrt:~# opkg install diffutils --force-overwrite
{{{
Installing diffutils (3.0-1) to root...
Downloading http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/diffutils_3.0-1_ar71xx.ipk.
Configuring diffutils.
}}}

 * root@OpenWrt:~# cp -a /etc/opkg.conf /etc/opkg.conf.orig-20120520
 * root@OpenWrt:~# vim /etc/opkg.conf
{{{#!diff
--- /etc/opkg.conf.orig-20120520        2012-05-17 08:44:02.000000000 +0000
+++ /etc/opkg.conf      2012-05-20 10:54:50.000000000 +0000
@@ -1,4 +1,4 @@
-src/gz attitude_adjustment http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages
+src/gz attitude_adjustment http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages/
 dest root /
 dest ram /tmp
 lists_dir ext /var/opkg-lists
}}}

 * root@OpenWrt:~# opkg update
{{{
Downloading http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//Packages.gz.
Inflating http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//Packages.gz.
Updated list of available packages in /var/opkg-lists/attitude_adjustment.
}}}

 * root@OpenWrt:~# opkg install subversion-client
{{{
Installing subversion-client (1.6.17-2) to root...
Downloading http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//subversion-client_1.6.17-2_ar71xx.ipk.
Installing libaprutil (1.3.12-2) to root...
Downloading http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//libaprutil_1.3.12-2_ar71xx.ipk.
Installing libapr (1.4.5-2) to root...
Downloading http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//libapr_1.4.5-2_ar71xx.ipk.
Installing libpthread (0.9.30.1-43.32) to root...
Downloading http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//libpthread_0.9.30.1-43.32_ar71xx.ipk.
Installing librt (0.9.30.1-43.32) to root...
Downloading http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//librt_0.9.30.1-43.32_ar71xx.ipk.
Installing libsqlite3 (3070701-1) to root...
Downloading http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//libsqlite3_3070701-1_ar71xx.ipk.
Installing libuuid (1.41.11-1) to root...
Downloading http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//libuuid_1.41.11-1_ar71xx.ipk.
Installing subversion-libs (1.6.17-2) to root...
Downloading http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//subversion-libs_1.6.17-2_ar71xx.ipk.
Configuring librt.
Configuring libpthread.
Configuring libapr.
Configuring libsqlite3.
Configuring libuuid.
Configuring libaprutil.
Configuring subversion-libs.
Configuring subversion-client.
}}}

 * root@OpenWrt:~# svn
{{{
svn: can't load library 'libssl.so.0.9.8'
}}}

 * root@OpenWrt:~# opkg remove libopenssl
{{{
No packages removed.
Collected errors:
 * print_dependents_warning: Package libopenssl is depended upon by packages:
 * print_dependents_warning:    libneon
 * print_dependents_warning: These might cease to work if package libopenssl is removed.

 * print_dependents_warning: Force removal of this package with --force-depends.
 * print_dependents_warning: Force removal of this package and its dependents
 * print_dependents_warning: with --force-removal-of-dependent-packages.
}}}
 * root@OpenWrt:~# opkg remove libopenssl --force-removal-of-dependent-packages
{{{
Removing package subversion-client from root...
Removing package subversion-libs from root...
Removing package subversion-client from root...
You can force removal of packages with failed prerm scripts with the option:
        --force-remove
No packages removed.
Collected errors:
 * pkg_run_script: Internal error: subversion-client has a NULL tmp_unpack_dir.
 * opkg_remove_pkg: not removing package "subversion-client", prerm script failed
}}}
 * root@OpenWrt:~# opkg remove libopenssl --force-removal-of-dependent-packages --f
{{{
orce-remove
Removing package libneon from root...
Removing package libopenssl from root...
}}}
 * root@OpenWrt:~# opkg install libneon
{{{
Installing libneon (0.29.6-2) to root...
Downloading http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//libneon_0.29.6-2_ar71xx.ipk.
Installing libopenssl (0.9.8r-1) to root...
Downloading http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//libopenssl_0.9.8r-1_ar71xx.ipk.
Configuring libopenssl.
Configuring libneon.
}}}

 * root@OpenWrt:~# opkg install subversion-client
{{{
Installing subversion-client (1.6.17-2) to root...
Downloading http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//subversion-client_1.6.17-2_ar71xx.ipk.
Installing subversion-libs (1.6.17-2) to root...
Downloading http://downloads.openwrt.org/backfire/10.03.1/ar71xx/packages//subversion-libs_1.6.17-2_ar71xx.ipk.
Configuring subversion-libs.
Configuring subversion-client.
}}}

 * root@OpenWrt:~# svn
{{{
Segmentation fault
}}}
 = DD-WRT =
 * [http://fon-wiki.maniado.com/index.php?DD-WRT DD-WRT - FoNまとめwiki]
 * [http://www.dd-wrt.com/wiki/index.php/Munin Munin - DD-WRT Wiki]
 > Munin can not (?) run on DD-Wrt directly so we need an extra server which is online to the router every time.