[git.ipfire.org] IPFire 2.x development tree branch, next, updated. cda384a280b11461f4114faf4c86c8589df15eb0

[git.ipfire.org] IPFire 2.x development tree branch, next, updated. cda384a280b11461f4114faf4c86c8589df15eb0

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- Log -----------------------------------------------------------------
commit cda384a280b11461f4114faf4c86c8589df15eb0
Author: Michael Tremer <michael.tremer(a)ipfire.org>
Date:   Fri Mar 24 13:24:42 2017 +0100

    ipsec: Do not reject connections in on-demand mode
    
    When an on-demand VPN connection is not up, the packets will
    traverse the firewall and be rejected by the IPSECBLOCK chain
    which will cause that an ICMP error message will be sent to
    the client. If that does not happen and the packet is being
    silently dropped, the client will retransmit and by then
    the VPN connection will hopefully be up.
    
    Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org>

-----------------------------------------------------------------------

Summary of changes:
 config/firewall/ipsec-block               | 41 ++++++++++++++++++++++++++-----
 config/rootfiles/core/110/filelists/files |  1 +
 2 files changed, 36 insertions(+), 6 deletions(-)

Difference in files:
diff --git a/config/firewall/ipsec-block b/config/firewall/ipsec-block
index 9fa8e1a..96682b8 100644
--- a/config/firewall/ipsec-block
+++ b/config/firewall/ipsec-block
@@ -23,23 +23,43 @@ VPN_CONFIG="/var/ipfire/vpn/config"
 
 block_subnet() {
 	local subnet="${1}"
+	local action="${2}"
 
 	# Don't block a wildcard subnet
 	if [ "${subnet}" = "0.0.0.0/0" ] || [ "${subnet}" = "0.0.0.0/0.0.0.0" ]; then
 		return 0
 	fi
 
-	iptables -A IPSECBLOCK -d "${subnet}" -j REJECT --reject-with icmp-net-unreachable
+	case "${action}" in
+		reject)
+			iptables -A IPSECBLOCK -d "${subnet}" -j REJECT --reject-with icmp-net-unreachable
+			;;
+		drop)
+			iptables -A IPSECBLOCK -d "${subnet}" -j DROP
+			;;
+		*)
+			return 1
+			;;
+	esac
+
+	return 0
 }
 
 block_ipsec() {
 	# Flush all exists rules
 	iptables -F IPSECBLOCK
 
-	local id status name lefthost type ctype unknown1 unknown2 unknown3
-	local leftsubnets unknown4 righthost rightsubnets rest
-	while IFS="," read -r id status name lefthost type ctype unkown1 unknown2 unknown3 \
-			leftsubnets unknown4 righthost rightsubnets rest; do
+	local action
+
+	local vars="id status name lefthost type ctype x1 x2 x3 leftsubnets"
+	vars="${vars} x4 righthost rightsubnets x5 x6 x7 x8 x9 x10 x11 x12"
+	vars="${vars} x13 x14 x15 x16 x17 x18 x19 x20 x21 proto x22 x23 x24"
+	vars="${vars} route rest"
+
+	# Register local variables
+	local ${vars}
+
+	while IFS="," read -r ${vars}; do
 		# Check if the connection is enabled
 		[ "${status}" = "on" ] || continue
 
@@ -49,9 +69,18 @@ block_ipsec() {
 		# Split multiple subnets
 		rightsubnets="${rightsubnets//\|/ }"
 
+		case "${route}" in
+			route)
+				action="drop"
+				;;
+			*)
+				action="reject"
+				;;
+		esac
+
 		local rightsubnet
 		for rightsubnet in ${rightsubnets}; do
-			block_subnet "${rightsubnet}"
+			block_subnet "${rightsubnet}" "${action}"
 		done
 	done < "${VPN_CONFIG}"
 }
diff --git a/config/rootfiles/core/110/filelists/files b/config/rootfiles/core/110/filelists/files
index 5816027..c6d15d6 100644
--- a/config/rootfiles/core/110/filelists/files
+++ b/config/rootfiles/core/110/filelists/files
@@ -13,6 +13,7 @@ srv/web/ipfire/cgi-bin/vpnmain.cgi
 srv/web/ipfire/html/themes/darkdos/include/style.css
 srv/web/ipfire/html/themes/ipfire/include/css/style.css
 srv/web/ipfire/html/themes/maniac/include/style.css
+usr/lib/firewall/ipsec-block
 usr/lib/libssp.so.0
 usr/lib/libssp.so.0.0.0
 usr/local/bin/xt_geoip_update


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