X-Git-Url: https://git.toastfreeware.priv.at/debian/iodine.git/blobdiff_plain/e0c989f43a67e3df499db03e16368bce741d4a3f..16250e846ac329ce595b394678bcc9ee2d4a289c:/debian/iodine-jigger

diff --git a/debian/iodine-jigger b/debian/iodine-jigger
index 0bb32ae..92533a2 100644
--- a/debian/iodine-jigger
+++ b/debian/iodine-jigger
@@ -27,7 +27,7 @@ set -e
 
 ## Minimal customization: put the two lines
 ##  subdomain=your.tunnel.sub.domain
-##  passed=password_for_that_tunnel
+##  passwd=password_for_that_tunnel
 ## in the file /etc/default/iodine-client.
 
 echo "${iodine_client_rc:=/etc/default/iodine-client}" > /dev/null
@@ -67,7 +67,7 @@ echo "${test_ping_final:=true}"			> /dev/null
 echo "${default_router}"			> /dev/null
 
 ## Set if script uses the wrong hardware interface
-echo "{interface}"				> /dev/null
+echo "${interface}"				> /dev/null
 
 ## Set if the script should continue even if a command fails.
 ## Used to test script when running as non-root.
@@ -83,6 +83,7 @@ fi
 ##  ipcalc (for /usr/bin/ipcalc)
 ##  dnsutils (for /usr/bin/dig)
 ##  fping (for /usr/bin/fping)
+##  gawk (for /usr/bin/gawk, to use gensub())
 
 ## The default tunnel MTU is 1024.
 ## If local DNS server restricts to 512 byte packets then do this:
@@ -189,6 +190,8 @@ for n in ${nameservers}; do
     n_net=$(ipcalc --nobinary ${n}/${prefix_len} | awk '$1=="Network:" {print $2}')
     if [ "${n_net}" != "${local_net}" ]; then
 	echo ==== Adding point-to-point route for DNS server ${n}
+        ## remove point-to-point route first, in case it is already present
+	ip -4 route del ${n}/32 || true
 	ip -4 route add ${n}/32 via ${router} || ${continue_on_error}
     fi
 done
@@ -196,7 +199,7 @@ done
 ## Bring up DNS tunnel
 
 echo ==== Creating IP-over-DNS tunnel...
-iodine -P ${passwd} ${subdomain} || ${continue_on_error}
+iodine -P "${passwd}" "${subdomain}" || ${continue_on_error}
 
 ## Find DNS tunnel interface
 
@@ -212,7 +215,7 @@ echo ==== DNS tunnel interface: ${tunnel_interface}
 ## it *prints* it as it sets up the tunnel, so it does know it.)
 
 tunnel_remote=$(ip -4 address show dev ${tunnel_interface} \
-    | awk '$1=="inet" {print gensub("[.][0-9]*/.*", ".1", 1, $2)}' | head -1)
+    | gawk '$1=="inet" {print gensub("[.][0-9]*/.*", ".1", 1, $2)}' | head -1)
 
 if [ -z ${tunnel_remote} ]; then
     echo ERROR: Cannot find DNS tunnel remote endpoint.