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authorChristopher Laprise <tasket@protonmail.com>2017-12-30 15:36:49 -0500
committerRuben Pollan <meskio@sindominio.net>2018-01-12 11:01:21 +0100
commit4da63fae464086d786eaf67d9effdb70d8131a18 (patch)
tree34ce1776c317cc116e7b66e8802384f3fd5104db /src/leap/bitmask
parent799f16d85e569755dc7284a4f3d44878b4116d47 (diff)
Add anti-leak rules for qubes-firewall
Diffstat (limited to 'src/leap/bitmask')
-rwxr-xr-xsrc/leap/bitmask/vpn/helpers/linux/bitmask-root31
1 files changed, 31 insertions, 0 deletions
diff --git a/src/leap/bitmask/vpn/helpers/linux/bitmask-root b/src/leap/bitmask/vpn/helpers/linux/bitmask-root
index ee838164..938fcb89 100755
--- a/src/leap/bitmask/vpn/helpers/linux/bitmask-root
+++ b/src/leap/bitmask/vpn/helpers/linux/bitmask-root
@@ -51,6 +51,7 @@ import socket
import syslog
import subprocess
import sys
+import stat
import traceback
cmdcheck = subprocess.check_output
@@ -148,6 +149,18 @@ PARAM_FORMATS = {
"UID": lambda s: re.match("^[a-zA-Z0-9]+$", s)
}
+# Determine Qubes OS version, if any
+if os.path.isdir("/etc/qubes"):
+ QUBES_CFG = "/rw/config/"
+ QUBES_IPHOOK = QUBES_CFG + "qubes-ip-change-hook"
+ QUBES_FW_SCRIPT = QUBES_CFG + "qubes-firewall-user-script"
+ if subprocess.call([IPTABLES, "--list", "QBS-FORWARD"]) == 0:
+ QUBES_VER = 4
+ else:
+ QUBES_VER = 3
+else:
+ QUBES_VER = 0
+
DEBUG = os.getenv("DEBUG")
TEST = os.getenv("TEST")
@@ -706,6 +719,24 @@ def firewall_start(args):
ip4tables("--append", BITMASK_CHAIN, "-o",
default_device, "--jump", "REJECT")
+ # On Qubes OS, add anti-leak rules for proxyVM qubes-firewall.service
+ # Must stay on 'top' of chain!
+ if QUBES_VER >= 3 and not os.access(QUBES_FW_SCRIPT, os.X_OK):
+ with open(QUBES_FW_SCRIPT, mode="w") as qfile:
+ qfile.write("#!/bin/sh\n")
+ qfile.write("# Anti-leak rules installed by bitmask.\n")
+ qfile.write("iptables --insert FORWARD -i eth0 -j DROP\n")
+ qfile.write("iptables --insert FORWARD -o eth0 -j DROP\n")
+ qfile.write("ip6tables --insert FORWARD -i eth0 -j DROP\n")
+ qfile.write("ip6tables --insert FORWARD -o eth0 -j DROP\n")
+ os.chmod(QUBES_FW_SCRIPT, stat.S_IRWXU)
+ if not os.path.exists(QUBES_IPHOOK):
+ os.symlink(QUBES_FW_SCRIPT, QUBES_IPHOOK)
+ if QUBES_VER = 4:
+ run(QUBES_FW_SCRIPT)
+ elif QUBES_VER = 3:
+ run("systemctl", ["restart", "qubes-firewall.service"])
+
def firewall_stop():
"""