PoC with Re6st

Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>

.gitignore

@@ -0,0 +1,4 @@
+certs/
+log/
+run/
+states/

firewall/restrict-http.conf

@@ -8,7 +8,6 @@ table inet filter {
     }
     chain forward {
         type filter hook forward priority 0; policy accept
-                tcp dport { 80 } reject;
         accept
     }
     chain output {

start.sh

@@ -20,86 +20,119 @@ tmux rename-window host
 
 function reset() {
   echo "Reset previous configuration..."
-  pkill -e vde_plug
   pkill -e babeld
-  rm -rv /tmp/switch* /tmp/ns*
+  pkill -KILL -e re6stnet
+  pkill -e vde_plug
+  rm -r run/*
+  rm -rv $dir/switches
   ip route delete 172.17.0.0/16
   nft flush ruleset
 }
 
 reset
 
+echo "Generate registry certificates..."
+mkdir -p $dir/certs/registry
+[[ -f $dir/certs/registry/dh4096.pem ]] || openssl dhparam -out $dir/certs/registry/dh4096.pem 4096
+[[ -f $dir/certs/registry/ca.key ]] || openssl genpkey -out $dir/certs/registry/ca.key -algorithm rsa -pkeyopt rsa_keygen_bits:4096
+[[ -f $dir/certs/registry/ca.crt ]] || openssl req -nodes -new -x509 -key $dir/certs/registry/ca.key -set_serial 0x12a0c07003012000300040001 -days 36500 -out $dir/certs/registry/ca.crt
+
 echo "Setup switches..."
-vde_plug --daemon switch:///tmp/ext null://
+mkdir switches
-vde_plug --daemon switch:///tmp/switch1 null://
+vde_plug --daemon switch://$dir/switches/ext null://
-vde_plug --daemon switch:///tmp/switch2 null://
+vde_plug --daemon switch://$dir/switches/switch1 null://
+vde_plug --daemon switch://$dir/switches/switch2 null://
 
 # Connect to the exterior
-sudo vde_plug --daemon vde:///tmp/ext tap://vde0
+sudo vde_plug --daemon vde://$dir/switches/ext tap://vde0
 sudo ip link set dev vde0 address 02:00:00:00:00:00
 sudo ip link set dev vde0 up
 sudo ip address add 10.2.1.1/30 dev vde0
+sleep 1
 
 # Setup NAT
 nft -f $dir/firewall/nat.conf
 
+echo "Configure re6st registry..."
+mkdir -p $dir/states/host $dir/certs/host $dir/log/host $dir/run
+tmux split-window -t host -h re6st-registry --dh $dir/certs/registry/dh4096.pem --ca $dir/certs/registry/ca.crt --key $dir/certs/registry/ca.key --db $dir/states/host/registry.db --logfile $dir/log/host/registry.log --run $dir/run/registry.pid -4 10.2.1.1 -6 ::1 --prefix-length 16
+sleep 1
+if ! [[ -f $dir/certs/host/cert.crt ]]; then
+  echo "Generating certificates for host..."
+  sqlite3 $dir/states/host/registry.db "INSERT INTO token VALUES(\"token\", \"ynerant@ynerant.fr\", 16, 1)"
+  sleep 1
+  re6st-conf --registry http://10.2.1.1 --dir $dir/certs/host --email ynerant@ynerant.fr --token token
+  sleep 15
+fi
+tmux split-window -t host bash
+tmux send-keys -t host "re6stnet --registry http://10.2.1.1 --ip 10.2.1.1 --ca $dir/certs/host/ca.crt --cert $dir/certs/host/cert.crt --key $dir/certs/host/cert.key --state $dir/states/host --log $dir/log/host --run $dir/run/re6stnet-host.pid --gateway" Enter
+tmux select-pane -t host -L
+
 for i in 1 2 3 4; do
   echo "Creating new namespace..."
-  mkdir -p /tmp/ns$i/log
+  tmux new-window -n ns$i "unshare --net --mount"
-  tmux new-window -n ns$i "unshare --user --map-root-user --net --mount"
   tmux select-window -t host
 
   sleep 1
 
   echo "Configure ns$i..."
 
-  tmux send-keys -t ns$i "echo \$\$ > /tmp/ns$i/pid" Enter
+  tmux send-keys -t ns$i "echo \$\$ > $dir/run/node$i.pid" Enter
   if [[ $i -eq 1 ]]; then
-    tmux send-keys -t ns$i "vde_plug --daemon vde:///tmp/ext tap://vde0" Enter
+    tmux send-keys -t ns$i "vde_plug --daemon vde://$dir/switches/ext tap://vde0" Enter
     sleep 0.3
     tmux send-keys -t ns$i "ip link set dev vde0 address 02:00:00:00:00:01" Enter
     tmux send-keys -t ns$i "ip link set dev vde0 up" Enter
     tmux send-keys -t ns$i "ip address add 10.2.1.2/30 dev vde0" Enter
     tmux send-keys -t ns$i "ip route add default via 10.2.1.1 dev vde0 proto kernel" Enter
-    tmux send-keys -t ns$i "echo \"interface vde0 type wired\" >> /tmp/ns$i/babeld.conf" Enter
-    tmux send-keys -t ns$i "echo \"redistribute metric 256\" >> /tmp/ns$i/babeld.conf" Enter
   fi
-
-  tmux send-keys -t ns$i "mount --bind /tmp/ns$i/log /var/log" Enter
 done
 
 echo "Enable links..."
 
 # Switch 1: NS 1, 2, 3
 for i in 1 2 3; do
-  tmux send-keys -t ns$i "vde_plug --daemon vde:///tmp/switch1 tap://vde1" Enter
+  tmux send-keys -t ns$i "vde_plug --daemon vde://$dir/switches/switch1 tap://vde1" Enter
   sleep 0.3
   tmux send-keys -t ns$i "ip link set dev vde1 address 02:00:00:00:01:0$i" Enter
   tmux send-keys -t ns$i "ip link set dev vde1 up" Enter
-  tmux send-keys -t ns$i "ip address add 172.17.1.$i/32 dev vde1" Enter
+  tmux send-keys -t ns$i "ip address add 172.17.1.$i/24 dev vde1" Enter
-  tmux send-keys -t ns$i "echo \"interface vde1 type wired\" >> /tmp/ns$i/babeld.conf" Enter
+  tmux send-keys -t ns$i "ip route add 10.2.1.0/24 via 172.17.1.1 dev vde1 proto kernel" Enter
 done
 
 # Switch 2: NS 2, 3, 4
 for i in 2 3 4; do
-  tmux send-keys -t ns$i "vde_plug --daemon vde:///tmp/switch2 tap://vde2" Enter
+  tmux send-keys -t ns$i "vde_plug --daemon vde://$dir/switches/switch2 tap://vde2" Enter
   sleep 0.3
   tmux send-keys -t ns$i "ip link set dev vde2 address 02:00:00:00:02:0$i" Enter
   tmux send-keys -t ns$i "ip link set dev vde2 up" Enter
-  tmux send-keys -t ns$i "ip address add 172.17.2.$i/32 dev vde2" Enter
+  tmux send-keys -t ns$i "ip address add 172.17.2.$i/24 dev vde2" Enter
-  tmux send-keys -t ns$i "echo \"interface vde2 type wired\" >> /tmp/ns$i/babeld.conf" Enter
 done
 
+tmux send-keys -t ns4 "ip route add 172.17.1.0/24 via 172.17.2.2 dev vde2 proto kernel" Enter
+tmux send-keys -t ns4 "ip route add 172.17.1.0/24 via 172.17.2.3 dev vde2 proto kernel" Enter
+tmux send-keys -t ns4 "ip route add 10.2.1.0/24 via 172.17.2.2 dev vde2 proto kernel" Enter
+tmux send-keys -t ns4 "ip route add 10.2.1.0/24 via 172.17.2.3 dev vde2 proto kernel" Enter
+tmux send-keys -t ns1 "ip route add 172.17.2.0/24 via 172.17.1.2 dev vde1 proto kernel" Enter
 ip route add 172.17.0.0/16 via 10.2.1.2
 
 # Restrict HTTP transport on node 2
 tmux send-keys -t ns2 "nft -f $dir/firewall/restrict-http.conf" Enter
-# Put a higher metric for node 3, to enforce babel to choose node 2
-echo "in neigh fe80::ff:fe00:202 metric 512" > /tmp/ns4/babeld.conf
 
 for i in 1 2 3 4; do
-  tmux send-keys -t ns$i "touch /etc/babeld.conf && mount --bind /tmp/ns$i/babeld.conf /etc/babeld.conf" Enter
+  mkdir -p $dir/certs/node$i $dir/states/node$i
-  tmux send-keys -t ns$i "babeld -D -I /tmp/ns$i/babeld.pid -G /tmp/ns$i/socket -S /tmp/ns1/state" Enter
+  if ! [[ -f $dir/certs/node$i/cert.crt ]]; then
+    echo "Generating certificates for node $i..."
+    sqlite3 $dir/states/host/registry.db "INSERT INTO token VALUES(\"token\", \"ynerant@ynerant.fr\", 16, 1)"
+    sleep 1
+    re6st-conf --registry http://10.2.1.1 --dir $dir/certs/node$i --email ynerant@ynerant.fr --token token
+    sleep 15
+  fi
+  tmux split-window -h -t ns$i nsenter -t `cat $dir/run/node$i.pid` --mount --net
+  subnet=1
+  if [[ $i == 4 ]]; then subnet=2; fi
+  tmux send-keys -t ns$i "re6stnet --registry http://10.2.1.1 --ip 172.17.$subnet.$i --ca $dir/certs/node$i/ca.crt --cert $dir/certs/node$i/cert.crt --key $dir/certs/node$i/cert.key --state $dir/states/node$i --log $dir/log/node$i --run $dir/run/re6stnet-node$i.pid --default" Enter
+  tmux select-pane -t ns$i -L
 done
 
 bash