Make token generator script
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63bfae1014
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@ -57,5 +57,7 @@ FROM scratch
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COPY --from=mirror /out/ /
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COPY init /init
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COPY bin/ /bin/
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COPY etc/ /etc/
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COPY lib/ /lib/
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COPY sbin/ /sbin/
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@ -0,0 +1,93 @@
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#!/bin/sh
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# FUNCTIONS ###########################################################
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# script usage
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usage() {
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>&2 cat <<EOF
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ADLIN token generator
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EOF
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}
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# token generator
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token_generator() {
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{
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echo -n ${PKEY}
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for d
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do
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echo -n :${d}
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done
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} | b2sum | cut -d ' ' -f 1
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}
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# JSON token format helper
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token_format() {
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local TID=$1
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local TOKEN=$2
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shift 2
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[ $# -gt 0 ] && {
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local DATA=',
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"data": [';
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for d; do
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[ -z "$Z" ] && Z=1 || DATA="$DATA, "
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DATA="$DATA\"$d\""
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done
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DATA="$DATA]"
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}
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>&2 cat <<EOF
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{
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"login": "${ULGN}",
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"challenge": ${TID},
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"token": "${TOKEN}"${DATA}
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}
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EOF
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}
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# /proc/cmdline parser (from Gentoo Wiki)
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cmdline() {
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local value
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value=" $(cat /proc/cmdline) "
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value="${value##* $1=}"
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value="${value%% *}"
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[ "$value" != "" ] && echo "$value"
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}
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# GLOBAL VARIABLES ####################################################
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ULGN=$(cmdline adlin.login)
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PKEY=$(cmdline adlin.key)
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# MAIN ################################################################
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[ $# -lt 1 ] && { usage; exit 1; }
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case "$1" in
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token1|token2)
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HDATA=42
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;;
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token3|token6)
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DATA=$(date +%s%N)
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;;
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token4)
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echo "$1 is not here! Perhaps it has been accidentally deleted?" >&2
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exit 2
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;;
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token5)
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HDATA=$(dig +short +time=1 +tries=0 adlin.nemunai.re $2 | sed 's/"//g') || {
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echo "Try again! Your resolver settings seems not good :(" >&2
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exit 3
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}
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echo $HDATA | grep "not here" 2> /dev/null && exit 3
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;;
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*)
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echo "Invalid argument: $1" >&2
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usage
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exit 1
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;;
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esac
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token_format "${1#token}" "$(token_generator ${1#token} ${HDATA} ${DATA})" ${DATA}
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@ -5,8 +5,6 @@ header: ADvanced LINux administration
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footer: EPITA SRS 2019
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author: Écrit par Pierre-Olivier *nemunaire* Mercier <**nemunaire+adlin@nemunai.re**>
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date: 2018-02-21
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hyphenate: true
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pandoc-version: true
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...
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# NOM
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@ -35,61 +33,61 @@ Outrepasser la phase de connexion et devenir **root** sur le système.
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## STAGE 1
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**adlin token1 | curl -d @- https://172.23.0.1/challenge1**
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**adlin token1 | curl -d @- http://172.23.0.1/challenge**
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Voir aussi: **modprobe**(8), **fbi**(1), **ip**(8), **ip-link**(8), **ip-address**(8)
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## STAGE 2
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**adlin token2 | curl -d @- https://172.23.200.1/challenge2**
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**adlin token2 | curl -d @- http://172.23.200.1/challenge**
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Voir aussi: **ip-route**(8), **crontab**(1)
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## STAGE 3 (bonus)
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## STAGE 3
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**cat token3 | curl -d @- https://172.23.200.1/challenge3**
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Voir aussi: **mount**(8)
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## STAGE 4
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**token4 | curl -d @- https://172.23.200.1/challenge4**
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**adlin token3 | curl -d @- https://172.23.200.1/challenge**
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Voir aussi: **ntpd**(1)
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## STAGE 4
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## STAGE 4 (bonus)
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**dig** *token4* **| curl -d @- https://172.23.200.1/challenge4**
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**cat token4 | curl -d @- https://172.23.200.1/challenge**
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Voir aussi: **resolv.conf**(5), **dig**(1)
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Voir aussi: **mount**(8)
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## STAGE 5
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**adlin toke5 | curl -d @- https://adlin.nemunai.re/challenge5**
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**dig** *token5* **| curl -d @- https://172.23.200.1/challenge**
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Voir aussi: **resolv.conf**(5), **dig**(1)
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## STAGE 6
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**adlin token6 | curl -d @- https://adlin.nemunai.re/challenge**
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Voir aussi: **ip-link**(8), **udhcpc**(1), **traceroute**(8), **tcpdump**(1), **sysctl**(8)
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## STAGE 6
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## STAGE 7
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**mail** [*OPTIONS*] **adlin@nemunai.re**
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Voir aussi: **dig**(1), **mail**(1)
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## STAGE 7
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## STAGE 8
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**cat ~/.ssh/***id_ssh* **| curl -d @- https://adlin.nemunai.re/sshkey**
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Voir aussi: **ssh-keygen**(1)
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## STAGE 8
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## STAGE 9
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**ssh -p** *23000* **root@adlin.nemunai.re**
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