From 1d329f44550d805b4185e5ab1e7cc94ba19d93f2 Mon Sep 17 00:00:00 2001
From: Darren 'Tadgy' Austin <darren@afterdark.org.uk>
Date: Wed, 18 Nov 2020 19:30:51 +0000
Subject: Begin implementing multiple IPv6 addresses handling.

---
 netconfig | 109 +++++++++++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 76 insertions(+), 33 deletions(-)

diff --git a/netconfig b/netconfig
index 8680388..e975fad 100644
--- a/netconfig
+++ b/netconfig
@@ -711,46 +711,89 @@ Enter IPv4 gateway address:" 14 68 "$GATEWAY" 2> $TMP/SeTgateway4
       rm -f $TMP/SeTgateway4
     fi
 
+
+
+
+
+
+
+
+
+
+
     while [ 0 ]; do
-      if [ -r $TMP/SeTIP6 ]; then
-        IPADDR6="`cat $TMP/SeTIP6`"
+      if [ -r $TMP/SeTIPSv6 ]; then
+        IP6ADDRS=($(cat $TMP/SeTIPSv6))
       fi
-      dialog --title "ENTER IPv6 ADDRESS FOR '$HOSTNM.$DOMAIN'" --inputbox \
-"Enter the IPv6 address for the local machine.
-Example: fe80:426c:ffff::365a
-If you do not want to configure a static IPv6 address, just hit ENTER." \
-          10 74 $IPADDR6 2> $TMP/SeTlip6
-      if [ $? = 1 -o $? = 255 ]; then
-        rm -f $TMP/SeTlip6
+      dialog --title "ENTER IPv6 ADDRESSES" --cancel-label "Skip" --inputbox \
+"Enter the IPv6 addresses for this host.  You may list one or more,
+space delimited, IPv6 addresses with their prefixes in the format:
+  <IP address>/<prefix>
+For example:
+  11a:11b:11c:11d::abc/64
+If a prefix is not specified a default of 64 will be used.
+
+If you do not want to configure a static IPv6 address or don't
+know what to put, just leave it blank or select 'Skip'." \
+          17 69 "${IP6ADDRS[*]}" 2> $TMP/SeTIPSv6
+      ERRNO="$?"
+      if [ "$ERRNO" = "1" ]; then
+        IPA6DDRS=()
+        rm -f $TMP/SeTIPSv6
+        break
+      elif [ "$ERRNO" = "255" ]; then
+        rm -f $TMP/SeTIPSv6
         exit
       fi
-      IPADDR6="`cat $TMP/SeTlip6`"
-      rm -f $TMP/SeTlip6
-      if [ "$IPADDR6" = "" ]; then
-        if [ "$IPADDR" = "" ]; then
-          dialog --title "NO IP ADDRESSES" --yesno \
-"You have not configured any IP addresses for your system.
-Are you sure you want to proceed with no IPs?" 6 61
-          if [ $? = 0 ]; then
-            break 2
-          else
-            continue 2
+      IP6ADDRS=($(cat $TMP/SeTIPSv6))
+      rm -f $TMP/SeTIPSv6
+      if [ "${IP6ADDRS[*]}" = "" ]; then
+        rm -f $TMP/SeTIPSv6
+        break
+      fi
+      for ((I=0; I < ${#IPADDRS[@]}; I++)); do
+        IP="${IP6ADDRS[$I]%%/*}"
+        PREFIX="${IP6ADDRS[$I]#*/}"
+        if [ "$IP" = "" ]; then
+          dialog --title "NO IPv6 ADDRESSES" --ok-button "Back" --msgbox \
+              "No IP specified in entry: ${IP6ADDRS[$I]}." 5 60
+          if [ "$?" = "255" ]; then
+            rm -f $TMP/SeTIPSv6
+            exit
           fi
-        fi
-      else
-        # We can only do a basic validation of the entered address
-        # as regexes for IPv6 addresses are very complex.
-        if echo "$IPADDR6" | grep -E "^[0-9a-fA-F:]+$" >/dev/null; then
-          echo $IPADDR6 > $TMP/SeTIP6
-          break
-        else
-          dialog --title "INVALID IP ADDRESS" --msgbox \
-"The IP address you entered is not valid.
-Please enter a valid IPv6 address." 6 44
           continue
         fi
-      fi
-    done
+        # syntax_check_v6 "$IP" || continue 2
+        if [ "$PREFIX" = "" ]; then
+          IP6ADDRS[$I]="$IP/64"
+          PREFIX="64"
+        fi
+
+#      if [ "$IPADDR6" = "" ]; then
+#        if [ "$IPADDR" = "" ]; then
+#          dialog --title "NO IP ADDRESSES" --yesno \
+#"You have not configured any IP addresses for your system.
+#Are you sure you want to proceed with no IPs?" 6 61
+#          if [ $? = 0 ]; then
+#            break 2
+#          else
+#            continue 2
+#          fi
+#        fi
+#      else
+#        # We can only do a basic validation of the entered address
+#        # as regexes for IPv6 addresses are very complex.
+#        if echo "$IPADDR6" | grep -E "^[0-9a-fA-F:]+$" >/dev/null; then
+#          echo $IPADDR6 > $TMP/SeTIP6
+#          break
+#        else
+#          dialog --title "INVALID IP ADDRESS" --msgbox \
+#"The IP address you entered is not valid.
+#Please enter a valid IPv6 address." 6 44
+#          continue
+#        fi
+#      fi
+#    done
 
     if [ ! "$IPADDR6" = "" ]; then
       while [ 0 ]; do
-- 
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