Ville Nuorvala
d0087b29f7
ipv6_tunnel: Allow receiving packets on the fallback tunnel if they pass sanity checks ...
At Facebook, we do Layer-3 DSR via IP-in-IP tunneling. Our load balancers wrap
an extra IP header on incoming packets so they can be routed to the backend.
In the v4 tunnel driver, when these packets fall on the default tunl0 device,
the behavior is to decapsulate them and drop them back on the stack. So our
setup is that tunl0 has the VIP and eth0 has (obviously) the backend's real
address.
In IPv6 we do the same thing, but the v6 tunnel driver didn't have this same
behavior - if you didn't have an explicit tunnel setup, it would drop the
packet.
This patch brings that v4 feature to the v6 driver.
The same IPv6 address checks are performed as with any normal tunnel,
but as the fallback tunnel endpoint addresses are unspecified, the checks
must be performed on a per-packet basis, rather than at tunnel
configuration time.
[Patch description modified by phil@ipom.com ]
Signed-off-by: Ville Nuorvala <ville.nuorvala@gmail.com>
Tested-by: Phil Dibowitz <phil@ipom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-29 00:52:32 -07:00
netfilter: add user-space connection tracking helper infrastructure
2012-06-16 15:40:02 +02:00
Merge branch 'delete-tokenring' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2012-05-16 01:02:40 -04:00
net: cleanup unsigned to unsigned int
2012-04-15 12:44:40 -04:00
ipv6: bool/const conversions phase2
2012-05-19 01:08:16 -04:00
ipv6: bool conversions phase1
2012-05-18 02:24:13 -04:00
ipv6: Handle PMTU in ICMP error handlers.
2012-06-15 14:54:11 -07:00
ipv6: bool/const conversions phase2
2012-05-19 01:08:16 -04:00
ipv6: bool/const conversions phase2
2012-05-19 01:08:16 -04:00
ipv6: Handle PMTU in ICMP error handlers.
2012-06-15 14:54:11 -07:00
net: Remove casts to same type
2012-06-04 11:45:11 -04:00
ipv6: bool/const conversions phase2
2012-05-19 01:08:16 -04:00
net/ipv6/fib6_rules.c: Checkpatch cleanup
2012-04-02 04:33:46 -04:00
inet: Sanitize inet{,6} protocol demux.
2012-06-19 18:56:21 -07:00
tcp: pass fl6 to inet6_csk_route_req()
2012-06-28 17:53:50 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2012-06-25 15:50:32 -07:00
ipv6: bool/const conversions phase2
2012-05-19 01:08:16 -04:00
inet: Sanitize inet{,6} protocol demux.
2012-06-19 18:56:21 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2012-06-12 21:59:18 -07:00
ipv6_tunnel: Allow receiving packets on the fallback tunnel if they pass sanity checks
2012-06-29 00:52:32 -07:00
ip6mr: Do not use RTA_PUT() macros
2012-06-27 15:36:44 -07:00
ipv6: Handle PMTU in ICMP error handlers.
2012-06-15 14:54:11 -07:00
net: cleanup unsigned to unsigned int
2012-04-15 12:44:40 -04:00
xfrm: make xfrm_algo.c a module
2012-05-15 13:13:34 -04:00
ipv6: bool/const conversions phase2
2012-05-19 01:08:16 -04:00
ipv6: correct the ipv6 option name - Pad0 to Pad1
2012-05-17 15:49:51 -04:00
inet: Create and use rt{,6}_get_peer_create().
2012-06-08 23:24:18 -07:00
ipv6: fix per device IP snmp counters
2012-01-17 23:56:18 -05:00
inet: Sanitize inet{,6} protocol demux.
2012-06-19 18:56:21 -07:00
inet: Sanitize inet{,6} protocol demux.
2012-06-19 18:56:21 -07:00
ipv6: use skb coalescing in reassembly
2012-05-19 18:34:57 -04:00
net/ipv6/route.c: packets originating on device match lo
2012-06-25 23:54:32 -07:00
ipv4: Handle PMTU in all ICMP error handlers.
2012-06-14 22:22:07 -07:00
net: remove ipv6_addr_copy()
2011-11-22 16:43:32 -05:00
net: Delete all remaining instances of ctl_path
2012-04-20 21:22:30 -04:00
tcp: plug dst leak in tcp_v6_conn_request()
2012-06-28 17:54:03 -07:00
net: ipv6: Standardize prefixes for message logging
2012-05-16 01:01:03 -04:00
net: skb_free_datagram_locked() doesnt drop all packets
2012-06-27 15:40:57 -07:00
ipsec: be careful of non existing mac headers
2012-02-23 16:50:45 -05:00
ipsec: be careful of non existing mac headers
2012-02-23 16:50:45 -05:00
xfrm6: remove unneeded NULL check in __xfrm6_output()
2012-02-01 02:52:48 -05:00
inet: Hide route peer accesses behind helpers.
2012-06-11 02:08:47 -07:00
net: remove ipv6_addr_copy()
2011-11-22 16:43:32 -05:00
net: cleanup unsigned to unsigned int
2012-04-15 12:44:40 -04:00
d0087b29f7