jem.m4: Add a hook for SAUCE.

Use ipsets rather than SAUCE's defaults.

diff --git a/jem.m4 b/jem.m4
index 26f1398..c91a104 100644 (file)
--- a/jem.m4
+++ b/jem.m4
@@ -50,6 +50,13 @@ m4_divert(-1)
 ### jem-specific rules.
 
 m4_divert(82)m4_dnl
+## Set up the SAUCE sinbin.  Unfortunately, ipset is a bit brittle.  This
+## isn't a completely critical part of the firewall security, so don't make
+## this fail the entire script.
+errorchain sauce REJECT
+makeset sauce iphash || :
+iptables -A inbound -g sauce -m set --match-set sauce src || :
+
 ## Externally visible services.
 allowservices inbound tcp \
        ssh \