Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

modified for portability/simplicity #2

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

modified for portability/simplicity #2

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
257 changes: 92 additions & 165 deletions backupessential
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -33,13 +33,16 @@
#
#########################################################
export PATH=/opt/bin:/opt/sbin:/opt/usr/sbin:/bin:/usr/bin:/sbin:/usr/sbin:/jffs/sbin:/jffs/bin:/jffs/usr/sbin:/jffs/usr/bin:/mmc/sbin:/mmc/bin:/mmc/usr/sbin:/mmc/usr/bin
commands_exist() { type "$@" >/dev/null 2>&1;}
commands_exist curl && CURL='curl'
[ -z "$CURL" ] && CURL='/opt/bin/curl'

DATE=`date +%m%d%Y`
MAC=`nvram get lan_hwaddr | tr -d ":"`
DATE=$(date +%m%d%Y)
MAC=$(nvram get lan_hwaddr | tr -d ":")
FILE=${MAC}.${DATE}
NAME="$0"
[ -z "`which readlink`" ] || NAME="`readlink -f "${NAME}"`"
CUR_DIR=`dirname ${NAME}`
commands_exist readlink && NAME="$(readlink -f "${NAME}")"
CUR_DIR=$(dirname "${NAME}")
TRANSFER=0
if [ -d /opt/tmp ]; then
FOLDER=/opt/var/backups
Expand All @@ -52,11 +55,7 @@ else
VARFILE=/tmp/all_vars
fi

flavours='all
essential
dangerous
preferred
minimal'
flavours='all essential dangerous preferred minimal'

#########################################################
#FTP Login information change to your info
Expand Down Expand Up @@ -91,174 +90,107 @@ do
u) USERPASS="$OPTARG";;
f) FTPS="$OPTARG";;
d) BACKUPDIR="$OPTARG";;
?) printf "Usage: %s: [-t] [-u username:password] [-f ftpserver]\n" $0
?) printf "Usage: %s: [-t] [-u username:password] [-f ftpserver]\n" "$0"
exit 2;;
esac
done
shift $(($OPTIND - 1))
shift $((OPTIND - 1))

if [ "${BACKUPDIR}" != "" ]; then
if [ -n "${BACKUPDIR}" ]; then
if [ ! -d "${BACKUPDIR}" ]; then
echo "ERROR: ${BACKUPDIR} does not exist"
exit 1
fi
FOLDER="${BACKUPDIR}"
VARFILE="${BACKUPDIR}"/all_vars
else
mkdir -p $FOLDER
if [ ! -d $FOLDER ]; then
mkdir -p "$FOLDER"
if [ ! -d "$FOLDER" ]; then
echo "ERROR: Unable to write to $FOLDER"
exit 1
fi
fi
TO_ALL="${FOLDER}/${MAC}.${DATE}.all.sh"
TO_INCLUDE="${FOLDER}/${MAC}.${DATE}.essential.sh"
TO_EXCLUDE="${FOLDER}/${MAC}.${DATE}.dangerous.sh"
TO_PREFERRED="${FOLDER}/${MAC}.${DATE}.preferred.sh"
TO_MINIMAL="${FOLDER}/${MAC}.${DATE}.minimal.sh"
CR=`printf "\r"`
TO_ALL="${FOLDER}/${FILE}.all.sh"
TO_INCLUDE="${FOLDER}/${FILE}.essential.sh"
TO_EXCLUDE="${FOLDER}/${FILE}.dangerous.sh"
TO_PREFERRED="${FOLDER}/${FILE}.preferred.sh"
TO_MINIMAL="${FOLDER}/${FILE}.minimal.sh"
SKIP_VARS="${CUR_DIR}/vars_to_skip"
INCL_VARS="${CUR_DIR}/vars_to_include"
PREF_VARS="${CUR_DIR}/vars_preferred"
MIN_VARS="${CUR_DIR}/vars_minimal"

for script in "${SKIP_VARS}" "${INCL_VARS}" "${PREF_VARS}"; do
if [ ! -f "${script}" ] ; then
echo "${script} is missing"
exit 1
fi
done

if [ ! -f "${CUR_DIR}/vars_to_skip" ] ; then
echo "${CUR_DIR}/vars_to_skip is missing"
exit 1
fi
if [ ! -f "${CUR_DIR}/vars_to_include" ] ; then
echo "${CUR_DIR}/vars_to_include is missing"
exit 1
fi
if [ ! -f "${CUR_DIR}/vars_preferred" ] ; then
echo "${CUR_DIR}/vars_preferred is missing"
exit 1
fi
if [ ! -f "${CUR_DIR}/vars_minimal" ] ; then
echo '^cron
^wan_wins
^wan_up
^wl_ssid
^wl_net_mode
^wl_channel
^wl_nm
^wl_net_mode
^wl_nband
^wl_mrate
^wl0_wds1_
^wl0_wds
^wl0_ssid
^wl0_wchannel
^wl0_ssid
^wl0_phy
^wl0_net_mode
^wl0_nctrlsb
^wl0_nbw
^wl0_nband
^wl0_nm
^wl0_nreqd
^wk_mode
^wan_proto
^wan_hostname
^wan_dns
^wan_domain
^usb_
^qos
^wshaper_uplink
^wshaper_downlink
^wshaper_enable
^wshaper_downlink
^wshaper_dev
^svqos_svcs
^svqos_macs
^static_lease
^sshd_enable
^sshd_wanport
^sshd_authorized_keys
^snmpd_
^syslogd_enable
^remote_mgt_ssh
^remote_management
^dns_dnsmasq
^dnsmasq_
^dmz_
^enable_jffs2
^log_
^local_dns
^lan_ipaddr
^lan_domain
^rc_
^http_wanport
^http_username
^http_passwd
^http_lanport
^https_enable
^http_enable
^fullswitch
^forwardspec_entries
^forward_port$
^forward_spec
^forward_entries
^forward_cur
^ddns_enable
^ddns_username
^ddns_hostname
^ddns_passwd
^dhcp_
^block_wan
^cron' > "${CUR_DIR}/vars_minimal"
min_var_list="cron wan_wins wan_up wl_ssid wl_net_mode wl_channel wl_nm \
wl_net_mode wl_nband wl_mrate wl0_wds1_ wl0_wds wl0_ssid \
wl0_wchannel wl0_ssid wl0_phy wl0_net_mode wl0_nctrlsb \
wl0_nbw wl0_nband wl0_nm wl0_nreqd wk_mode wan_proto \
wan_hostname wan_dns wan_domain usb_ qos wshaper_uplink \
wshaper_downlink wshaper_enable wshaper_downlink wshaper_dev \
svqos_svcs svqos_macs static_lease sshd_enable sshd_wanport \
sshd_authorized_keys snmpd_ syslogd_enable remote_mgt_ssh \
remote_management dns_dnsmasq dnsmasq_ dmz_ enable_jffs2 \
log_ local_dns lan_ipaddr lan_domain rc_ http_wanport \
http_username http_passwd http_lanport https_enable \
http_enable fullswitch forwardspec_entries forward_port$ \
forward_spec forward_entries forward_cur ddns_enable \
ddns_username ddns_hostname ddns_passwd dhcp_ block_wan"
if [ ! -f "${MIN_VARS}" ] ; then
for var in $min_var_list ; do
echo "^${var}" >> "${MIN_VARS}"
done
fi

grep -q "${CR}" "${CUR_DIR}/vars_to_skip" && sed -i -e 's/\r//g' "${CUR_DIR}/vars_to_skip"
grep -q "${CR}" "${CUR_DIR}/vars_to_include" && sed -i -e 's/\r//g' "${CUR_DIR}/vars_to_include"
grep -q "${CR}" "${CUR_DIR}/vars_preferred" && sed -i -e 's/\r//g' "${CUR_DIR}/vars_preferred"
grep -q "${CR}" "${CUR_DIR}/vars_minimal" && sed -i -e 's/\r//g' "${CUR_DIR}/vars_minimal"

grep -q "^ *$" "${CUR_DIR}/vars_minimal" && sed -i -e '/^ *$/d' "${CUR_DIR}/vars_minimal"
grep -q "^ *$" "${CUR_DIR}/vars_preferred" && sed -i -e '/^ *$/d' "${CUR_DIR}/vars_preferred"
grep -q "^ *$" "${CUR_DIR}/vars_to_include" && sed -i -e '/^ *$/d' "${CUR_DIR}/vars_to_include"
grep -q "^ *$" "${CUR_DIR}/vars_to_skip" && sed -i -e '/^ *$/d' "${CUR_DIR}/vars_to_skip"
for script in "${SKIP_VARS}" "${INCL_VARS}" "${PREF_VARS}" "${MIN_VARS}"; do
sed -i -e 's/\r//g' -e '/^ *$/d' "${script}"
done

#########################################################
# Create NVRAM variale list and write to /opt/tmp/all_vars
#########################################################

nvram show 2>/dev/null | egrep '^[A-Za-z][A-Za-z0-9_\.\-]*=' | awk -F= '{print $1}' | sort -ruo "${VARFILE}"
nvram show 2>/dev/null | grep -E '^[A-Za-z][A-Za-z0-9_\.\-]*=' | awk -F= '{print $1}' | sort -ruo "${VARFILE}"

#########################################################
# Write header to restore scripts
#########################################################

echo -e "#!/bin/sh\n#\necho \"Write variables\"\n" | tee -i "${TO_EXCLUDE}" | tee -i "${TO_PREFERRED}" | tee -i "${TO_ALL}" | tee -i "${TO_MINIMAL}" > "${TO_INCLUDE}"
for script in "${TO_INCLUDE}" "${TO_EXCLUDE}" "${TO_PREFERRED}" "${TO_MINIMAL}" "${TO_ALL}"; do
printf '%b\n' "#!/bin/sh\n#\necho \"Write variables\"\n" > "${script}"
done

#########################################################
# Scan NVRAM variable list and send variable to proper
# restore script
#########################################################

while read var ; do
while read -r var ; do
pref=0
minim=0
if echo "${var}" | grep -q -f "${CUR_DIR}/vars_to_skip" ; then
if echo "${var}" | grep -q -f "${SKIP_VARS}" ; then
bfile="$TO_EXCLUDE"
else
bfile="$TO_INCLUDE"
pref=`echo "${var}" | grep -cf "${CUR_DIR}/vars_preferred"`
minim=`echo "${var}" | grep -cf "${CUR_DIR}/vars_minimal"`
pref=$(echo "${var}" | grep -cf "${PREF_VARS}")
minim=$(echo "${var}" | grep -cf "${MIN_VARS}")
fi

# get the data out of the variable
data="`nvram get ${var}`"
data="$(nvram get "${var}")"
# write the var to the file and use \ for special chars: (\$`")
echo -en "nvram set ${var}=\"" | tee -ia ${TO_ALL} >> ${bfile}
echo -n "${data}" | sed -e 's/[$`"\]/\\&/g' | tee -ia ${TO_ALL} >> ${bfile}
echo -e "\"" | tee -ia ${TO_ALL} >> ${bfile}
if [ ${pref} -ne 0 ]; then
echo -en "nvram set ${var}=\"" >> ${TO_PREFERRED}
echo -n "${data}" | sed -e 's/[$`"\]/\\&/g' >> ${TO_PREFERRED}
echo -e "\"" >> ${TO_PREFERRED}
fi
if [ ${minim} -ne 0 ]; then
echo -en "nvram set ${var}=\"" >> ${TO_MINIMAL}
echo -n "${data}" | sed -e 's/[$`"\]/\\&/g' >> ${TO_MINIMAL}
echo -e "\"" >> ${TO_MINIMAL}
fi
nvram_str="$(printf '%b' "nvram set ${var}=\""
printf '%s' "${data}" | sed -e 's/[$`"\]/\\&/g'
printf '%b\n' "\"")"
echo "$nvram_str"
echo "$nvram_str" >> "${bfile}"
[ "${pref}" -ne 0 ] && echo "$nvram_str" >> "${TO_PREFERRED}"
[ "${minim}" -ne 0 ] && echo "$nvram_str" >> "${TO_MINIMAL}"
done <"${VARFILE}"

#########################################################
Expand All @@ -269,60 +201,55 @@ done <"${VARFILE}"
# rm ${VARFILE}

#########################################################
# Write footer to restore script
#########################################################

echo -e "\n# Commit variables\necho \"Save variables to nvram\"\nnvram commit" | tee -ia "${TO_ALL}" | tee -ia "${TO_PREFERRED}" | tee -ia "${TO_EXCLUDE}" | tee -ia "${TO_MINIMAL}" >> "${TO_INCLUDE}"

#########################################################
# Change permissions on restore scripts to make them
# executable
# Write footer to restore script and
# change permissions to make them executable
#########################################################

chmod +x "${TO_INCLUDE}"
chmod +x "${TO_PREFERRED}"
chmod +x "${TO_EXCLUDE}"
chmod +x "${TO_ALL}"
chmod +x "${TO_MINIMAL}"
for script in "${TO_INCLUDE}" "${TO_EXCLUDE}" "${TO_PREFERRED}" "${TO_MINIMAL}" "${TO_ALL}"; do
printf '%b\n' "\n# Commit variables\necho \"Save variables to nvram\"\nnvram commit" >> "${script}" &&
chmod +x "${script}"
done

# Remove the previous backup if it's (almost) the same
if cd "${FOLDER}" ; then
if [ -d "${FOLDER}" ] ; then
temp1='/tmp/chk1'; temp2='/tmp/chk2'
if commands_exist mktemp; then
temp1="$(mktemp)" && temp2="$(mktemp)"
fi
for flavour in ${flavours} ; do

echo "Checking ${MAC}.*.${flavour}.sh"

LAST3=`ls --color=never -1rt ${MAC}.*.${flavour}.sh | tail -n3`
PREVIOUS=`echo "${LAST3}" | tail -n+2 | head -n1`
CURRENT=`echo "${LAST3}" | tail -n1`
LAST3=$(ls --color=never -1rt "${FOLDER}"/"${MAC}".*."${flavour}".sh | tail -n3)
PREVIOUS=$(echo "${LAST3}" | tail -n+2 | head -n1)
CURRENT=$(echo "${LAST3}" | tail -n1)

if [ ! -z "${PREVIOUS}" ] && [ ! "${PREVIOUS}" = "${CURRENT}" ]; then

grep -vE 'nvram set (forward_|traff|dnsmasq_lease_|http_client_)' ${PREVIOUS} >/tmp/chk1
grep -vE 'nvram set (forward_|traff|dnsmasq_lease_|http_client_)' ${CURRENT} >/tmp/chk2
if [ -n "${PREVIOUS}" ] && [ "${PREVIOUS}" != "${CURRENT}" ]; then
nvram_grep='nvram set (forward_|traff|dnsmasq_lease_|http_client_)'
grep -vE "${nvram_grep}" "${PREVIOUS}" >"${temp1}"
grep -vE "${nvram_grep}" "${CURRENT}" >"${temp2}"
echo "Comparing ${PREVIOUS} with ${CURRENT}"

if [ -z "`diff /tmp/chk1 /tmp/chk2`" ] ; then
if diff "${temp1}" "${temp2}" >/dev/null 2>&1; then
echo "Removing ${PREVIOUS} because it's the same as ${CURRENT}"
rm -f ${PREVIOUS}
rm -f "${PREVIOUS}"
fi

fi
done
rm -f /tmp/chk1
rm -f /tmp/chk2
rm -f "${temp1}" "${temp2}"
fi

[ -h /opt/restore ] && rm /opt/restore
ln -s ${TO_MINIMAL} /opt/restore
ln -s "${TO_MINIMAL}" /opt/restore

#########################################################
# Compress restore scripts and send them to ftp server
#########################################################

if [ "${TRANSFER}" -ne 0 ] ; then
tar cpf - -C / "${TO_INCLUDE}" 2>/dev/null | gzip -c | /opt/bin/curl -s -u ${USERPASS} "${FTPS}/${FILE}.essential.sh.tgz" -T -
tar cpf - -C / "${TO_MINIMAL}" 2>/dev/null | gzip -c | /opt/bin/curl -s -u ${USERPASS} "${FTPS}/${FILE}.minimal.sh.tgz" -T -
tar cpf - -C / "${TO_PREFERRED}" 2>/dev/null | gzip -c | /opt/bin/curl -s -u ${USERPASS} "${FTPS}/${FILE}.preferred.sh.tgz" -T -
tar cpf - -C / "${TO_EXCLUDE}" 2>/dev/null | gzip -c | /opt/bin/curl -s -u ${USERPASS} "${FTPS}/${FILE}.dangerous.sh.tgz" -T -
tar cpf - -C / "${TO_ALL}" 2>/dev/null | gzip -c | /opt/bin/curl -s -u ${USERPASS} "${FTPS}/${FILE}.all.sh.tgz" -T -
for script in "${TO_INCLUDE}" "${TO_EXCLUDE}" "${TO_PREFERRED}" "${TO_MINIMAL}" "${TO_ALL}"; do
out_file="${FTPS}/$(basename "$script").tgz"
tar cpf - -C / "${script}" 2>/dev/null | gzip -c | "$CURL" -s -u "${USERPASS}" "${out_file}" -T -
done
fi