diff options
Diffstat (limited to 'packages/slugos-init/files/initscripts/sysconfsetup')
| -rw-r--r-- | packages/slugos-init/files/initscripts/sysconfsetup | 239 |
1 files changed, 27 insertions, 212 deletions
diff --git a/packages/slugos-init/files/initscripts/sysconfsetup b/packages/slugos-init/files/initscripts/sysconfsetup index 4111633a2b..a4f9074d9c 100644 --- a/packages/slugos-init/files/initscripts/sysconfsetup +++ b/packages/slugos-init/files/initscripts/sysconfsetup @@ -7,225 +7,40 @@ # point at which the rootfs will be mounted rw even if the kernel # booted with it ro. # -# rm or mv the file to run this again. If this is done the -# following configuration files will be rewritten: +# rm or mv the file (/etc/default/sysconf) to recreate it, run this +# script with the reload option to overwrite the system files. The +# configuration files described in sysconf_reload (in +# /sbin/sysconf) will be overwritten on reload. # -# /etc/default/sysconf -# /etc/hostname -# /etc/defaultdomain -# /etc/network/interfaces -# /etc/resolv.conf +# start: standard startup, do a complete (auto) restore if necessary +# reinit: always do a complete auto restore +# reload: just reload sysconf (no config files!) # # /etc/default/functions contains useful utility functions - it's # in a separate file so that it can be loaded by any script . /etc/default/functions +load_functions sysconf || exit 1 # -config valid && test "$1" != reload && exit 0 -# -# Utility to deal with absence of DNS configuration -echodns(){ - local dns - if test $# -gt 0 - then - for dns in "$@" - do - echo "nameserver $dns" - done - fi -} -# -# The SysConf device must exist in /dev at this point for this script -# to work. -# -# It is important not to hard-wire the name of the device because of -# the posibility of changing the flash partition layout. -# -# The block device is used here because at present udev does not -# show the character devices -sysdev= -config valid || sysdev="$(mtblockdev SysConf)" -if test -n "$sysdev" -a -b "$sysdev" -then - # Read the defined part of SysConf into /etc/default/sysconf. - # SysConf has lines of two forms: - # - # [section] - # name=value - # - # In practice SysConf also contains other stuff, use the command: - # - # devio '<</dev/mtd1;cpb' - # - # to examine the current settings. The badly formatted stuff - # is removed (to be exact, the sed script selects only lines - # which match one of the two above). The lan interface, which - # defaults to ixp0, is changed to the correct value for slugos, - # eth0. The bootproto, which LinkSys sets to static in manufacturing, - # is reset to dhcp if the IP is still the original (192.168.1.77) - devio "<<$sysdev" cpb fb1,10 | sed -n '/^\[[^][]*\]$/p; - s/^lan_interface=ixp0$/lan_interface=eth0/; - /^ip_addr=192\.168\.1\.77$/,/^bootproto/s/^bootproto=static$/bootproto=dhcp/; - /^[-a-zA-Z0-9_][-a-zA-Z0-9_]*=/p' >/etc/default/sysconf - # - # The SysConf must have a hardware id, if it doesn't it has - # probably been erased or never set in the first place and the - # hardware id is retrieved from the RedBoot partition. This is - # the only thing which cannot be defaulted. -fi -# -# Error recovery: no SysConf or invalid SysConf. Make a new one from the -# RedBoot hardware ID information. -# NOTE: this block of code overwrites the shell script arguments. -config valid || { - reddev="$(mtblockdev RedBoot)" - initmac= - if test -n "$reddev" -a -b "$reddev" - then - # The hardware id starts 80 bytes before the end of the - # block, the block ends (or should end) with the signature - # <4 bytes> sErCoMm <bytes> sErCoMm. Note that devio 'pf' - # empties the stack. - set -- $(devio "<<$reddev" ' - <= $80- - .= @ - pf %02X - A= 5 - $( 1 - A= @,A1- - pf :%02X - $) A - pn - <=f4+;cp7;pn - <=$7-;cp7;pn') - if test $# -eq 3 -a "$2" = sErCoMm -a "$3" = sErCoMm +case "$1" in +start) test -s /etc/default/sysconf || { + if sysconf_read then - initmac="$1" - fi - fi - # - # APEX: may need extra code to set initmac here. - # - if test -n "$initmac" - then - # - # Generate a complete /etc/default/sysconf based on just - # one number ;-) - { echo '[network]' - echo "hw_addr=$initmac" - } >/etc/default/sysconf - # - # See /etc/default/functions (the config function) for - # the derivation of the rest of the information. - fi -} -# -# The config function will now return the correct values - even if sysconf -# is still missing. 'config valid' says if valid configuration information -# is available. -# -# Set up the 'standard' files in the root file system (these couldn't be set -# up before because they depend on stuff which RedBoot puts into SysConf from -# the ID info on the specific machine - in particular the hardware address of -# eth0, which must be the one assigned for *this* box!) -# -# HOSTNAME: defaults to LGK<mac> i.e. something derived from -# the ethernet hardware. LinkSys documentation explains how -# to determine this. Set by the user in linksys setup software. -# DOMAINNAME: LinkSys puts this in w_d_name. -test -n "$(config host)" && config host >/etc/hostname -domain="$(config domain)" -test -n "$domain" && echo "$domain" >/etc/defaultdomain -# -# Ethernet information. This goes into /etc/network/interfaces, -# however this is only used for static setup (and this is not -# the default). With dhcp the slugos udhcp script, -# /etc/udhcpc.d/50default, loads the values from sysconf. The -# lan_interface config value must exist for the file to be -# overwritten here. -iface="$(config iface)" -if test -n "$iface" -then - boot="$(config boot)" - # Only dhcp and static are supported at present - bootp - # support requires installation of appropriate packages - # dhcp is the fail-safe - case "$boot" in - dhcp|static) ;; - *) boot=dhcp;; - esac - # - mac="$(config mac)" - ip="$(config ip)" - netmask="$(config netmask)" - gateway="$(config gateway)" - { - echo "# /etc/network/interfaces" - echo "# configuration file for ifup(8), ifdown(8)" - echo "#" - echo "# The loopback interface" - echo "auto lo" - echo "iface lo inet loopback" - echo "#" - echo "# The NSLU2 built-in ethernet" - echo "auto $iface" - echo "# Automatically generated from /etc/default/sysconf" - if config valid - then - echo "# The pre-up option must always be supplied, regardless" - echo "# of configuration, to set the hardware correctly." - echo "# Severe network problems may result if this option is" - echo "# removed." - c= + if sysconf_valid + then + sysconf_restore auto + else + sysconf_reload + fi else - echo "# WARNING: improperly configured network interface." - echo "# WARNING: the pre-up line must be corrected or severe" - echo "# WARNING: network problems may result." - c='#' - mac='<WARNING: unknown hardware address>' + sysconf_default + sysconf_reload fi - echo "iface $iface inet $boot" - echo "${c} pre-up ifconfig $iface hw ether $mac" - # The following are ignored for DHCP but are harmless - test -n "$ip" && echo " address $ip" - test -n "$netmask" && echo " netmask $netmask" - test -n "$gateway" && echo " gateway $gateway" - } >/etc/network/interfaces -fi -# -# The DNS server information gives up to three nameservers, but this -# currently only binds in the first. -{ - test -n "$domain" && echo "search $domain" - echodns $(config dns) $(config dns1) $(config dns2) -} >/etc/resolv.conf -# -# Invalid config must be handled, do this by hacking /etc/motd. -if config valid -then - echo "Host name: $(config host)" - echo "Host ID: $mac" - echo "Network boot method: $boot" - case "$boot" in - static) echo "Host IP address: $ip";; - esac - echo "Use 'turnup init' to reset the configuration" - echo "Use 'turnup disk|nfs -i <device> options to initialise a non-flash root" - echo "Use 'turnup help' for more information" -else - echo "+=====================================================================+" - echo "| +-----------------------+ |" - echo "| | INITIALISATION FAILED | |" - echo "| +-----------------------+ |" - echo "| |" - echo "| This machine has been booted with a temporary ethernet id |" - echo "| The initialisation failed because the machine id was not available |" - echo "| within the flash memory of the NSLU2. You must run: |" - echo "| |" - echo "| turnup init |" - echo "| |" - echo "| To correct this problem. Severe network problems may occur if this |" - echo "| is not done. |" - echo "+=====================================================================+" -fi >/etc/motd + };; + +reload) test -s /etc/default/sysconf || sysconf_read || sysconf_default + sysconf_reload;; + +reinit) sysconf_restore auto;; -exit 0 +*) ;; +esac |