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authorKali Kaneko <kali@leap.se>2014-05-21 08:29:51 -0500
committerKali Kaneko <kali@leap.se>2014-05-21 08:32:13 -0500
commit9ff5e5e8db715d84b5ae369cc59aa991cea3893c (patch)
treeb17064d85635dd856d590417c86ade017d2590b9 /pkg/linux/bitmask-root
parent415b6e1f58e41ba0b66c24b6a1e93aca039a5e9f (diff)
block ipv6 traffic
Diffstat (limited to 'pkg/linux/bitmask-root')
-rwxr-xr-xpkg/linux/bitmask-root11
1 files changed, 11 insertions, 0 deletions
diff --git a/pkg/linux/bitmask-root b/pkg/linux/bitmask-root
index 6badeedd..6d296ecf 100755
--- a/pkg/linux/bitmask-root
+++ b/pkg/linux/bitmask-root
@@ -765,6 +765,17 @@ def firewall_start(args):
"--dport", "53", "--destination", allowed_dns,
"--jump", "ACCEPT")
+ # workaround for ipv6 servers being blocked and not falling back to ipv4.
+ # See #5693
+ ip6tables("--append", "OUTPUT", "--jump", "REJECT",
+ "-s", "::/0", "-d", "::/0",
+ "-p", "tcp",
+ "--reject-with", "icmp6-port-unreachable")
+ ip6tables("--append", "OUTPUT", "--jump", "REJECT",
+ "-s", "::/0", "-d", "::/0",
+ "-p", "udp",
+ "--reject-with", "icmp6-port-unreachable")
+
def firewall_stop():
"""