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authorJamal Hadi Salim <hadi@cyberus.ca>2009-12-25 17:30:22 -0800
committerDavid S. Miller <davem@davemloft.net>2009-12-25 17:30:22 -0800
commit28f6aeea3f12d37bd258b2c0d5ba891bff4ec479 (patch)
treefadf8801f14420d7aac5d0a22812da8773c7f836 /include
parent4a6e47a460ce55e283063fc3f7391c8ea46bea27 (diff)
net: restore ip source validation
when using policy routing and the skb mark: there are cases where a back path validation requires us to use a different routing table for src ip validation than the one used for mapping ingress dst ip. One such a case is transparent proxying where we pretend to be the destination system and therefore the local table is used for incoming packets but possibly a main table would be used on outbound. Make the default behavior to allow the above and if users need to turn on the symmetry via sysctl src_valid_mark Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/inetdevice.h1
-rw-r--r--include/linux/sysctl.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index 699e85c01a4..b2304929434 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -81,6 +81,7 @@ static inline void ipv4_devconf_setall(struct in_device *in_dev)
#define IN_DEV_FORWARD(in_dev) IN_DEV_CONF_GET((in_dev), FORWARDING)
#define IN_DEV_MFORWARD(in_dev) IN_DEV_ANDCONF((in_dev), MC_FORWARDING)
#define IN_DEV_RPFILTER(in_dev) IN_DEV_MAXCONF((in_dev), RP_FILTER)
+#define IN_DEV_SRC_VMARK(in_dev) IN_DEV_ORCONF((in_dev), SRC_VMARK)
#define IN_DEV_SOURCE_ROUTE(in_dev) IN_DEV_ANDCONF((in_dev), \
ACCEPT_SOURCE_ROUTE)
#define IN_DEV_ACCEPT_LOCAL(in_dev) IN_DEV_ORCONF((in_dev), ACCEPT_LOCAL)
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 877ba039e6a..bd27fbc9db6 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -482,6 +482,7 @@ enum
NET_IPV4_CONF_ARP_ACCEPT=21,
NET_IPV4_CONF_ARP_NOTIFY=22,
NET_IPV4_CONF_ACCEPT_LOCAL=23,
+ NET_IPV4_CONF_SRC_VMARK=24,
__NET_IPV4_CONF_MAX
};