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Diffstat (limited to 'packages/foonas-init/files/functions')
| -rw-r--r-- | packages/foonas-init/files/functions | 413 |
1 files changed, 0 insertions, 413 deletions
diff --git a/packages/foonas-init/files/functions b/packages/foonas-init/files/functions deleted file mode 100644 index 2108288ab5..0000000000 --- a/packages/foonas-init/files/functions +++ /dev/null @@ -1,413 +0,0 @@ -#!/bin/sh -# . this file to load the following utility functions -# -# hardware -# the 'Hardware' string from cpuinfo, or, if not found -# try a little harder with 'machine' -hardware(){ - local hdw - hdw=`sed -n 's!^Hardware *: !!p' /proc/cpuinfo` - test -n "$hdw" || { - hdw=`sed -n 's!^machine *: !!p' /proc/cpuinfo` - } - echo $hdw -} -# -# machine -# outputs an identifier of the current machine - i.e. the board -# slugos is running on. -machine(){ - case "$(hardware)" in - *Coyote*) echo coyote;; - *IXDPG425*) echo ixdpg425;; - *WRV54G*) echo wrv54g;; - *IXDP425*) echo ixdp425;; - *IXDP465*) echo ixdp465;; - *IXCDP1100*) echo ixcdp1100*;; - *Avila*) echo avila;; - *Loft*) echo loft;; - *NAS?100d*) echo nas100d;; - *NSLU2*) echo nslu2;; - *StorCenter*) echo storcenter;; - *) echo unknown;; - esac -} -# -# single_user_ok -# if the machine is capable of single user interaction return -# true, else return false. The result of this function is -# preempted by setting SULOGIN to 'yes' or 'ok' in /etc/default/rcS -single_user_ok() { - # list known good machines in the 'case' - test "$SULOGIN" = yes -o "$SULOGIN" = ok || - case "$(machine)" in - ixdp*|avila|loft) - test "$SULOGIN" != never;; - *) return 1;; - esac -} -# -# load_functions "source" -# load the functions in '/sbin/source' - relies on /sbin/source being -# a shell script and having support for this function. -load_functions(){ - test -n "$1" -a -x "/sbin/$1" && . "/sbin/$1" || { - echo "$0: /sbin/$1: script not found" >&2 - return 1 - } -} -# -# mtdev "name" -# return (output) the character device name for flash parition "name" -# /proc/mtd has the general form: -# dev: size erasesize name -# mtd5: 00020000 00020000 "FIS directory" -# use this rather than hard-wiring the device because the partition -# table can change - looking in /proc/mtd is more reliable. -mtdev(){ - if test $(machine) = storcenter ; then - sed -n 's!^mtd\([0-9][0-9]*\):[^"]*"'"$1"'"$!/dev/mtd/\1!p' /proc/mtd - else - sed -n 's!^\(mtd[0-9][0-9]*\):[^"]*"'"$1"'"$!/dev/\1!p' /proc/mtd - fi -} -# -# mtblockdev "name" -# as mtdev but output the name of the block (not character) device -mtblockdev(){ - if test "$(machine)" = storcenter ; then - sed -n 's!^mtd\([0-9][0-9]*\):[^"]*"'"$1"'"$!/dev/mtdblock/\1!p' /proc/mtd - else - sed -n 's!^mtd\([0-9][0-9]*\):[^"]*"'"$1"'"$!/dev/mtdblock\1!p' /proc/mtd - fi -} -# -# mtsize "name" -# the size of the partition as a hexadecimal value (with 0x at the front) -mtsize(){ - sed -n 's!^mtd[0-9][0-9]*: \([^ ]*\)[^"]*"'"$1"'"$!0x\1!p' /proc/mtd -} -# -# sysvalmatch "section" "name" 'pattern' "configuration file" -# sysvalof "section" "name" "configuration file" -# sysval "section" "name" -# outputs the value of the SysConf variable 'name' from section 'section', -# if there are multiple definitions only the last is output -# NOTE: these functions should only be used internally, add entries to 'config' -# below if necessary. This is because 'config' does the defaulting. -sysvalmatch(){ - sed -n '/^\['"$1"'\]$/,/^\[.*\]$/s/^'"$2"'=\('"$3"'\)$/\1/p' "$4" | sed -n '$p' -} -sysvalof(){ - sysvalmatch "$1" "$2" '.*' "$3" -} -sysval(){ - test -r "$config_root/etc/default/sysconf" && - sysvalof "$1" "$2" "$config_root/etc/default/sysconf" -} -# -# syssection "section" -# outputs all the values from the given section changed to the format "name value" -# (i.e. the '=' is dropped). -syssection(){ - test -r "$config_root/etc/default/sysconf" && - sed -n '/^\['"$1"'\]$/,/^\[.*\]$/s/^\([^=]*\)=\(.*\)$/\1 \2/p' "$config_root/etc/default/sysconf" -} -# -# config "value" -# convenience callers for specific values to avoid mis-typing in scripts -# NOTE: this function does the defaulting, 'sysval' does not! -# config_root: if set this will override the root where config/sysval -# looks for /etc/default/sysconf -config(){ - local mac - mac="$(test -r /proc/net/maclist && - sed -n '/^[0-9A-Za-z][0-9A-Za-z]:[0-9A-Za-z][0-9A-Za-z]:[0-9A-Za-z][0-9A-Za-z]:[0-9A-Za-z][0-9A-Za-z]:[0-9A-Za-z][0-9A-Za-z]:[0-9A-Za-z][0-9A-Za-z]$/p' /proc/net/maclist | - sed -n 1p)" - # - case "$1" in - mac) test -n "$mac" && echo "$mac";; - host) if test -n "$(sysval network disk_server_name)" - then - sysval network disk_server_name - elif test -n "$(sysval network default_server_name)" - then - sysval network default_server_name - elif test -n "$mac" - then - echo "$mac" | sed -n 's/^\(..\):\(..\):\(..\):\(..\):\(..\):\(..\)$/slug\1\2\3\4\5\6/p' - else - # because we want the name to remain constant: - echo "turbostation" - fi;; - domain) sysval network w_d_name;; - iface) if test -n "$(sysval network lan_interface)" - then - sysval network lan_interface - else - echo eth0 - fi;; - ip) if test -n "$(sysval network ip_addr)" - then - sysval network ip_addr - else - echo 192.168.1.16 - fi;; - netmask)sysval network netmask;; - gateway)sysval network gateway;; - dns) sysval network dns_server1;; - dns2) sysval network dns_server2;; - dns3) sysval network dns_server3;; - boot) if test -n "$(sysval network bootproto)" - then - sysval network bootproto - else - echo dhcp - fi;; - valid) test -r "$config_root/etc/default/sysconf" -a -n "$mac";; - *) return 1;; - esac -} -# -# checkif "iface" -# Validate an interface name by making sure that it exists -# in /proc/net/dev (and is not lo). The listing outputs the -# interface followed by a :, the check function looks for -# something of the form '$1[a-zA-Z0-9]*:' and outputs the -# part preceding the ':' -checkif(){ - sed -n '/^[ ]*lo:/d;s/^[ ]*\('"$1"'[a-zA-Z0-9]*\):.*$/\1/p;tE;d;:E;q' /proc/net/dev -} -# -# checkmount "mountpoint" -# tests an already mounted mountpoint to see whether to attempt to -# boot with this as root. Returns success if it appears ok. -checkmount(){ - # basic test for init (the kernel will try to load this) - # but require a shell in bin/sh too - test \( -d "$1/mnt" \) -a \ - \( -x "$1/bin/sh" -o -h "$1/bin/sh" \) -a \ - \( -x "$1/usr/sbin/chroot" -o -h "$1/usr/sbin/chroot" -o \ - -x "$1/sbin/chroot" -o -h "$1/sbin/chroot" \) -a \ - \( -x "$1/sbin/init" -o -h "$1/sbin/init" -o \ - -x "$1/etc/init" -o -h "$1/etc/init" -o \ - -x "$1/bin/init" -o -h "$1/bin/init" \) -} -# -# swivel "new root" "old root" -# NOTE: the arguments must be paths relative to /, bad things -# will happen if the arguments themselves start with / -# Pivot to a new root. This does all the fancy pivot_root stuff -# including closing streams and does a umount /proc - it doesn't -# matter if this fails (failure codes are ignored), but if /proc -# was mounted it must be restored by the caller on return. -# Normally this function never returns! -# On return 0,1,2 are connected to /dev/console - this may not -# have been true before! -swivel(){ - cd "$1" - exec <&- >&- 2>&- - # This is just-in-case the called mounted /proc and was - # unable to close it because of the streams - umount /proc 2>/dev/null - if pivot_root . "$2" - then - # everything must move out of the old root, this process - # is $2/bin/sh so it must die, IO is redirected - # just in case - typically it will be to a device so it - # won't hold the old root open. - # the exec here is the first point at which the old root - # is unused - before the exec regardless of the close of - # 0,1,2 above ash still has *this* shell script open! - # (it's on fd 10). - # init closes all file descriptors, there's no point - # supplying it with fds. - # NOTE: this used to use $2/usr/sbin/chroot, however on - # linux / is already . when the command is executed - # therefore it is essential to use the local (new root) - # chroot to ensure it gets the correct shared libraries. - if test -x usr/sbin/chroot -o -h usr/sbin/chroot - then - chroot=usr/sbin/chroot - elif test -x sbin/chroot -o -h sbin/chroot - then - chroot=sbin/chroot - else - chroot=chroot - fi - # - exec "$chroot" . bin/sh -c "\ - test -x sbin/init && exec sbin/init - test -x etc/init && exec etc/init - test -x bin/init && exec bin/init - mount -t sysfs sysfs /mnt - umount /mnt - sync;sync;sync - exit 1" - fi - # - # recovery - must restore the old root - cd "$2" - sbin/pivot_root . "$1" - # cd is back to $1 - either pivot_root doesn't change it and the - # chroot above was not executed, or pivot_root does change it and - # has just changed it back! - exec <>/dev/console >&0 2>&0 -} -# -# ifup "interface" -# bring that interface up with the configured ip and other -# information -ifup(){ - local ip hostname router subnet iface HOSTNAME NETMASK BROADCAST - - iface="$1" - ip="$(config ip)" - hostname="$(config host)" - router="$(config gateway)" - broadcast= - - if test -n "$ip" - then - # only if an ip was specified - subnet="$(config netmask)" - else - ip=192.168.1.77 - fi - - # First try udhcpc - note that the /boot/udhcpc.script - # simply records the values returned and the udhcpc - # is not left running so this will only work for - # the lease length time! - ifconfig "$iface" up - if test "$(config boot)" != static - then - test -n "$hostname" && HOSTNAME="-H $hostname" - # The script writes the required shell variable assignments - # to file descriptor 9 - eval $(udhcpc -i "$iface" -n -q -r "$ip" $HOSTNAME -s /boot/udhcpc.script 9>&1 >/dev/null) - fi - - test -n "$broadcast" && BROADCAST="broadcast $broadcast" - test -n "$subnet" && NETMASK="netmask $subnet" - - if ifconfig "$iface" "$ip" $NETMASK $BROADCAST - then - for route in $router - do - route add default gw "$route" dev "$iface" - done - return 0 - else - ifconfig "$iface" down - return 1 - fi -} -# -# ifdown "interface" -# take the interface down -ifdown(){ - ifconfig "$1" down -} -# -# mountflash "flash device" "flash root directory" {mount options} -# Finds and mounts the flash file system on the given directory -mountflash(){ - local ffsdev ffsdir - - ffsdev="$1" - test -n "$ffsdev" -a -b "$ffsdev" || { - echo "$0: unable to find flash file system to copy ($ffsdev)" >&2 - return 1 - } - shift - - ffsdir="$1" - test -n "$ffsdir" -a -d "$ffsdir" || { - echo "$0: mountflash $ffsdir: not a directory (internal error)" >&2 - return 1 - } - shift - - mount -t jffs2 "$@" "$ffsdev" "$ffsdir" || { - echo "$0: $ffsdev: unable to mount flash file system on $ffsdir" >&2 - return 1 - } - return 0 -} -# -# umountflash [-r] "flash device" -# unmount any instance of the given flash device, if -r is specified a mount on -# root is an error, otherwise a mount on root is ignored (and remains). -umountflash(){ - local rootok ffsno ffsdev - rootok=1 - case "$1" in - -r) rootok= - shift;; - esac - # - # The argument is ffsdev - ffsdev="$1" - ffsno="$(devio "<<$ffsdev" prd)" - test -n "$ffsno" -a "$ffsno" -ge 0 || { - echo "$0: $ffsdev: device number $ffsno is not valid, cannot continue." >&2 - return 1 - } - # - # Make sure that Flashdisk isn't mounted on / - if test -z "$rootok" -a "$(devio "<</etc/init.d/sysconfsetup" prd)" -eq "$ffsno" - then - echo "$0: $ffsdev is mounted on /, use turnup ram" >&2 - return 1 - fi - # - # The function is currently always used interactively, so output - echo "$0: umounting any existing mount of $ffsdev" >&2 - # - # check each mount point, do this last first because otherwise nested - # mounts of ffsdev cannot be umounted. - ffs_umount() { - local device mp type options stuff - - read device mp type options stuff - test -z "$device" && return 0 - - # handle following entries first - ffs_umount || return 1 - - # handle this entry, since this is currently only used for unmounting - # the flash root partition we know a file which must exist... - case "$mp/$type" in - //jffs2);; # skip / - */jffs2)test "$(devio "<<$mp/etc/init.d/sysconfsetup" prd 2>/dev/null)" -ne "$ffsno" || - umount "$mp" || { - echo "$0: $mp: unable to umount $ffsdev" >&2 - return 1 - };; - esac - - return 0 - } - # - ffs_umount </proc/mounts || { - echo "$0: umount $ffsdev from all mount points then re-run $0" >&2 - return 1 - } - - return 0 -} - -# -# uuid_by_partition -# output a list of partitions and their UUIDs -uuid_by_partition() { - blkid -c /dev/null -s UUID | sed -n 's/^\([^:]*\): .*UUID="\([^"]*\)".*$/\1 \2/p' -} - -# -# partition_of uuid -# return the partition corresponding to the UUID -partition_of() { - sed -n 's/^\([^ ]*\) '"$1"'$/\1/p' -} |