From: Ian Kelling <iank@fsf.org>
Date: Sun, 11 Oct 2020 12:59:39 +0000 (-0400)
Subject: add option, improve error handling
X-Git-Url: https://iankelling.org/git/?a=commitdiff_plain;h=e6b728a634f243aab009758f2f6741c3f313f153;p=vpn-setup

add option, improve error handling
---

diff --git a/client-cert-helper b/client-cert-helper
index 40078aa..d5bdcdc 100755
--- a/client-cert-helper
+++ b/client-cert-helper
@@ -6,13 +6,18 @@ set -eE -o pipefail
 rm -f /tmp/vpn-mk-client-cert.log
 exec 2>/tmp/vpn-mk-client-cert.log
 
+
+if ! test "$BASH_VERSION"; then echo "error: shell is not bash" >&2; exit 1; fi
+shopt -s inherit_errexit 2>/dev/null ||: # ignore fail in bash < 4.4
+set -eE -o pipefail
+trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?. PIPESTATUS: ${PIPESTATUS[*]}" >&2' ERR
+
 date >&2
+set -x
 
 name=$1
 common_name=$2
 
-echo common_name=$common_name >&2
-
 server_dir=/etc/openvpn
 if [[ -e /etc/openvpn/server ]]; then
   server_dir=/etc/openvpn/server
@@ -37,7 +42,7 @@ fi
 ### end section roughly copied from vpn-server-setup
 
 if [[ ! -e $cafile ]]; then
-  echo error: no cafile found at $cafile >/tmp/errors
+  echo error: no cafile found at $cafile >&2
   exit 1
 fi
 
diff --git a/vpn-mk-client-cert b/vpn-mk-client-cert
index baecdf1..78db36e 100755
--- a/vpn-mk-client-cert
+++ b/vpn-mk-client-cert
@@ -37,6 +37,7 @@ usage: ${0##*/} VPN_SERVER_HOST
 
 -c CLIENT_HOST   Default is localhost. Else we ssh to root@CLIENT_HOST.
 -n CONFIG_NAME   default is client
+-o SERVER_CONFIG_NAME  Default is CONFIG_NAME
 -s SCRIPT_PATH   Use custom up/down script at SCRIPT_PATH. copied to same path
                  on client, if client is not localhost.
 
@@ -67,13 +68,14 @@ custom_script=false
 script=/etc/openvpn/update-resolv-conf
 client_host=$CLIENT_HOST
 
-temp=$(getopt -l help hb:c:n:s: "$@") || usage 1
+temp=$(getopt -l help hb:c:n:o:s: "$@") || usage 1
 eval set -- "$temp"
 while true; do
   case $1 in
     -b) common_name="$2"; shift 2 ;;
     -c) client_host=$2; shell="ssh root@$client_host"; shift 2 ;;
     -n) name="$2"; shift 2 ;;
+    -o) server_name="$2"; shift 2 ;;
     -s) custom_script=true; script="$2"; shift 2 ;;
     -h|--help) usage ;;
     --) shift; break ;;
@@ -81,6 +83,10 @@ while true; do
   esac
 done
 
+if [[ ! $server_name ]]; then
+  server_name="$name"
+fi
+
 if [[ ! $common_name ]]; then
   if [[ $client_host ]]; then
     common_name=$client_host
@@ -96,10 +102,11 @@ host=$1
 
 # bash or else we get motd spam. note sleep 2, sleep 1 failed.
 $shell '[[ -e /etc/openvpn ]] || apt install openvpn'
-if ! ssh root@$host bash -s -- $name $common_name < client-cert-helper \
+if ! ssh root@$host bash -s -- $server_name $common_name < client-cert-helper \
     |  $shell 'id -u | grep -xF 0 || s=sudo; $s tar xzv -C /etc/openvpn/client'; then
   echo ssh root@$host cat /tmp/vpn-mk-client-cert.log:
   ssh root@$host cat /tmp/vpn-mk-client-cert.log
+  echo EOF for root@$host:/tmp/vpn-mk-client-cert.log
   exit 1
 fi