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| author |   Jamal Hadi Salim <hadi@cyberus.ca> | 2009-12-25 17:30:22 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2009-12-25 17:30:22 -0800 |
| commit | 28f6aeea3f12d37bd258b2c0d5ba891bff4ec479 (patch) | |
| tree | fadf8801f14420d7aac5d0a22812da8773c7f836 /net/ipv4/devinet.c | |
| parent | bnx2x: Initialize cnic status block during chip reset (diff) | |
| download | linux-dev-28f6aeea3f12d37bd258b2c0d5ba891bff4ec479.tar.xz linux-dev-28f6aeea3f12d37bd258b2c0d5ba891bff4ec479.zip | |
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 'net/ipv4/devinet.c')
| -rw-r--r-- | net/ipv4/devinet.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index 5cdbc102a418..040c4f05b653 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -1397,6 +1397,7 @@ static struct devinet_sysctl_table { DEVINET_SYSCTL_RW_ENTRY(ACCEPT_SOURCE_ROUTE, "accept_source_route"), DEVINET_SYSCTL_RW_ENTRY(ACCEPT_LOCAL, "accept_local"), + DEVINET_SYSCTL_RW_ENTRY(SRC_VMARK, "src_valid_mark"), DEVINET_SYSCTL_RW_ENTRY(PROXY_ARP, "proxy_arp"), DEVINET_SYSCTL_RW_ENTRY(MEDIUM_ID, "medium_id"), DEVINET_SYSCTL_RW_ENTRY(BOOTP_RELAY, "bootp_relay"), |