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[bigupdate] Dynamic Wireless Credentials added to `systemd` through wpa_supplicant instances

This commit is contained in:
xdrm-brackets 2017-07-22 16:14:06 +02:00
parent e88f8e3089
commit 6d290df9f2
6 changed files with 110 additions and 76 deletions
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112
clone/clone
View File

@ -259,83 +259,115 @@ step6(){
step7(){
echo -e "\n>>> [7] Set up systemd units";
# (1) Defaults
#--------------------------------------------------------#
# (0) Create useful folders #
# (1) Create useful folders #
echo " (.) Create useful folder";
echo " - /service";
sudo mkdir /mnt/service;
echo " - /target";
sudo mkdir /mnt/target;
# (1) Create link in order to be handled #
# (2) Set multi-user.target as default #
echo " (.) Emulate \`systemctl set-default multi-user.target\`";
sudo ln -fs /lib/systemd/system/multi-user.target /mnt/etc/systemd/system/default.target;
# (2) Install sats-install service #
# (2) Create .service lib files ()
#--------------------------------------------------------#
# (1) Create sats-install service #
echo " (.) Create sats-install service";
echo " - /lib/systemd/system";
sudo cp ./utility/sats-install.service /mnt/lib/systemd/system/sats-install.service;
# (3) Install sats-update service #
# (2) Create sats-update service #
echo " (.) Create sats-update service";
echo " - /lib/systemd/system";
sudo cp ./utility/sats-update.service /mnt/lib/systemd/system/sats-update.service;
# (5) Install sats-loop service #
# (3) Create sats-loop service #
echo " (.) Create sats-loop service";
echo " - /lib/systemd/system";
sudo cp ./utility/sats-loop.service /mnt/lib/systemd/system/sats-loop.service;
# (6) Enable startup service unit #
echo " (.) Emulate \`systemctl enable sats-loop.service\`";
# (4) Create sats-dwc@ service #
echo " (.) Create sats-dwc@ service";
echo " - /lib/systemd/system";
sudo cp ./utility/sats-dwc@.service /mnt/lib/systemd/system/sats-dwc@.service;
# (5) Create sats-update timer #
echo " (.) Create sats-update timer";
echo " - /lib/systemd/system";
cat ./utility/sats-update.timer | sudo tee /mnt/lib/systemd/system/sats-update.timer > /dev/null;
# (3) Install services
#--------------------------------------------------------#
# (1) Create startup folder (if not already exists) #
sudo mkdir -p /mnt/etc/systemd/system/multi-user.target.wants;
# (2) Enable sats-loop at startup #
echo " (.) Emulate \`systemctl enable sats-loop.service\`";
sudo ln -fs /lib/systemd/system/sats-loop.service /mnt/etc/systemd/system/multi-user.target.wants/sats-loop.service;
# (7) Create sats-install script #
echo " (.) Create sats-install script";
sudo cp ./utility/sats-install /mnt/service/sats-install;
# (3) Enable sats-dwc@wlan0 at startup #
echo " (.) Emulate \`systemctl enable sats-dwc@wlan0.service\`";
sudo ln -fs /lib/systemd/system/sats-dwc@.service /mnt/etc/systemd/system/multi-user.target.wants/sats-dwc@wlan0.service;
# (8) Create sats-update script #
echo " (.) Create sats-update script";
cat ./utility/sats-update | sudo tee /mnt/service/sats-update > /dev/null;
# (9) Create sats-wpa script #
echo " (.) Create sats-wpa script";
cat ./utility/sats-wpa | sed "s/\*\*\*SALT\*\*\*/$WIFI_SALT/" | sed "s/\*\*\*PEPPER\*\*\*/$WIFI_PEPPER/" | sudo tee /mnt/service/sats-wpa > /dev/null;
# (10) Create sats-loop script #
echo " (.) Create sats-loop script";
cat ./utility/sats-loop | sudo tee /mnt/service/sats-loop > /dev/null;
# (11) Create sats-update timer #
echo " (.) Create sats-update timer";
echo " - Create sats-update.timer file";
cat ./utility/sats-update.timer | sudo tee /mnt/lib/systemd/system/sats-update.timer > /dev/null;
# (4) Enable sats-update timer at startup #
echo " - Emulate \`systemctl enable sats-update.timer\`";
sudo ln -fs /lib/systemd/system/sats-update.timer /mnt/etc/systemd/system/multi-user.target.wants/sats-update.timer;
# (10) Set up permissions #
# (4) Create target scripts
#--------------------------------------------------------#
# (1) Create sats-install script #
echo " (.) Create sats-install script";
sudo cp ./utility/sats-install /mnt/service/sats-install;
# (2) Create sats-update script #
echo " (.) Create sats-update script";
cat ./utility/sats-update | sudo tee /mnt/service/sats-update > /dev/null;
# (3) Create sats-loop script #
echo " (.) Create sats-loop script";
cat ./utility/sats-loop | sudo tee /mnt/service/sats-loop > /dev/null;
# (4.1) Create sats-dwc@wlan0 script #
echo " (.) Create sats-dwc@wlan0 script";
cat ./utility/wlan0.dwc | sed "s/\*\*\*SALT\*\*\*/$WIFI_SALT/" | sed "s/\*\*\*PEPPER\*\*\*/$WIFI_PEPPER/" | sudo tee /mnt/etc/wpa_supplicant/wlan0.dwc > /dev/null;
# (5) Set up permissions
#--------------------------------------------------------#
echo " (.) Set up permissions";
echo " - sats-install @pi";
# (1) Services scripts #
echo " - sats-install (owner: pi)";
sudo chown 1000:1000 /mnt/service/sats-install;
sudo chmod 770 /mnt/service/sats-install;
echo " - sats-update @sats";
sudo chmod 550 /mnt/service/sats-install;
echo " - sats-update (ownder: sats)";
sudo chown 666:666 /mnt/service/sats-update;
sudo chmod 770 /mnt/service/sats-update;
echo " - sats-wpa @pi";
sudo chown 1000:1000 /mnt/service/sats-wpa;
sudo chmod 770 /mnt/service/sats-wpa;
echo " - sats-loop @sats";
sudo chmod 550 /mnt/service/sats-update;
echo " - sats-loop (ownder: sats)";
sudo chown 666:666 /mnt/service/sats-loop;
sudo chmod 770 /mnt/service/sats-loop;
sudo chmod 550 /mnt/service/sats-loop;
echo " - /service @sats";
echo " - sats-dwc@wlan0 (ownder: pi)";
sudo chown 1000:1000 /mnt/etc/wpa_supplicant/wlan0.dwc;
sudo chmod 550 /mnt/etc/wpa_supplicant/wlan0.dwc;
echo " - /service (ownder: sats)";
sudo chown 666:666 /mnt/service/*;
sudo chmod 777 /mnt/service/*;
sudo chmod 555 /mnt/service/*;
echo " - /target @sats";
echo " - /target (ownder: sats)";
sudo chown 666:666 /mnt/target;
sudo chmod 777 /mnt/target;
sudo chmod 555 /mnt/target;
echo "<<< done";

22
clone/utility/sats-dwc@.service Normal file
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@ -0,0 +1,22 @@
[Unit]
Description=SATS Dynamic Wireless Credentials (%i)
Wants=network.target
Before=network.target
BindsTo=sys-subsystem-net-devices-%i.device
After=sys-subsystem-net-devices-%i.device
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/echo "[1] Bringing %i up"
ExecStart=-/usr/sbin/ip link set dev %i up
ExecStart=/bin/echo "[2] Running Dynamic Wireless Configuration"
ExecStart=/bin/bash /etc/wpa_supplicant/%i.dwc
ExecStart=/bin/echo "[3] Running WPA Supplicant"
ExecStart=/sbin/wpa_supplicant -B -Dwext -i%i -c/etc/wpa_supplicant/%i.conf
ExecStart=/bin/echo "[4] Running DHCP client"
ExecStart=/sbin/dhclient %i
[Install]
WantedBy=multi-user.target

4
clone/utility/sats-install.service
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@ -1,7 +1,7 @@
[Unit]
Description=SATS Install Process
Requires=network.target network-online.target
After=network.target network-online.target
Requires=sats-dwc@wlan0.service network-online.target
After=sats-dwc@wlan0.service
Before=sats-loop.service
[Service]

3
clone/utility/sats-update.service
View File

@ -1,6 +1,7 @@
[Unit]
Description=SATS Update Process
Requires=network.target network-online.target
Requires=sats-dwc@wlan0.service network-online.target
After=sats-dwc@wlan0.service
OnFailure=sats-install.service
[Service]

14
clone/utility/sats-wpa.service
View File

@ -1,14 +0,0 @@
[Unit]
Description=SATS DWC (Dynamic Wireless Credentials)
Requires=sats-install.service
Before=network.target
[Service]
Type=simple
User=sats
Group=sats
ExecStart=/bin/sh /service/sats-loop
Restart=always
[Install]
WantedBy=multi-user.target

31
clone/utility/sats-wpa → clone/utility/wlan0.dwc
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@ -1,19 +1,24 @@
#!/bin/bash
LOGFILE="/home/sats/satsd/log/dwc.log";
slog(){
echo "$1" | sudo -u sats tee -a /home/sats/satsd/log/update.log > /dev/null;
echo -e "$1" | sudo -u sats tee -a $LOGFILE > /dev/null;
}
test ! -f $LOGFILE && sudo -u sats touch $LOGFILE;
HSALT="***SALT***";
HPEPPER="***PEPPER***";
slog ">>> Dynamic Wireless Credentials";
# [1] Wifi scan for "SATS_*" APs
#========================================================#
# (1) Get interface name #
slog "(1) Looking for wireless interface";
slog " * 1. Looking for wireless interface";
IFACE=`sudo ifconfig -a | grep -P "^w" | awk '{print $1}' | head -n 1`;
sudo ifconfig $IFACE up;
@ -22,7 +27,7 @@ test -z "$IFACE" && slog " > no wireless IFACE found" && exit;
slog " > got '$IFACE'";
# (3) Get nearest AP matching "SATS_*" and extract HASH #
slog "(2) Looking for nearest AP matching 'SATS_.+'";
slog " * 2. Looking for nearest AP matching 'SATS_.+'";
AP_HASH=`sudo iwlist $IFACE scan | grep -P "^\s*ESSID:\"SATS_.+\"\s*$" | sed 's/^[ \t]*ESSID:"SATS_//' | sed 's/"[ \t]*$//' | head -n 1`;
# (4) Manage no AP found #
@ -34,26 +39,14 @@ slog " > got 'SATS_$AP_HASH'";
# [2] Calculate WIFI PASS from SSID hash
#========================================================#
slog "(3) Processing WPA2 passphrase"
slog " * 3. Processing WPA2 passphrase"
PASS=`echo -ne "$HPEPPER$(echo -ne "${HSALT}${AP_HASH}" | sha512sum | sed 's/[ \t]*-$//')" | sha512sum | sed 's/[ \t]*-//' | cut -b 1-63`;
slog " > done";
# [3] Update 'wpa_supplicant.conf'
# [3] Update 'wpa_supplicant' configuration
#========================================================#
# (1) Update SSID #
sudo cat /etc/wpa_supplicant/wpa_supplicant.conf | sed "s/^[ \t]*ssid=.*$/\tssid=\"SATS_$AP_HASH\"/" | sudo tee /etc/wpa_supplicant/wpa_supplicant.tmp;
# (2) Update PASS #
sudo cat /etc/wpa_supplicant/wpa_supplicant.tmp | sed "s/^[ \t]*psk=.*$/\tpsk=\"$PASS\"/" | sudo tee /etc/wpa_supplicant/wpa_supplicant.conf;
# (3) Remove tmp file #
sudo rm /etc/wpa_supplicant/wpa_supplicant.tmp;
echo -e "network={\n\tssid=\"SATS_$AP_HASH\"/\n\tpsk=\"$PASS\"\n}" | sudo tee /etc/wpa_supplicant/$IFACE.conf;
slog "(4) Trying to connect";
sudo wpa_supplicant -B -Dwext -i$IFACE -c/etc/wpa_supplicant/wpa_supplicant.conf;
sudo dhclient $IFACE;
slog "<<< Done";
slog "<<< Done\n";