linux/net/ipv6
Oussama Ghorbel 582442d6d5 ipv6: Allow the MTU of ipip6 tunnel to be set below 1280
The (inner) MTU of a ipip6 (IPv4-in-IPv6) tunnel cannot be set below 1280, which is the minimum MTU in IPv6.
However, there should be no IPv6 on the tunnel interface at all, so the IPv6 rules should not apply.
More info at https://bugzilla.kernel.org/show_bug.cgi?id=15530

This patch allows to check the minimum MTU for ipv6 tunnel according to these rules:
-In case the tunnel is configured with ipip6 mode the minimum MTU is 68.
-In case the tunnel is configured with ip6ip6 or any mode the minimum MTU is 1280.

Signed-off-by: Oussama Ghorbel <ou.ghorbel@gmail.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-07 12:32:26 -04:00
..
netfilter netfilter: synproxy: fix BUG_ON triggered by corrupt TCP packets 2013-09-30 12:44:38 +02:00
Kconfig Tunneling: use IP Tunnel stats APIs. 2013-03-26 12:27:19 -04:00
Makefile net: ipv6: Add IPv6 support to the ping socket. 2013-05-25 21:07:49 -07:00
addrconf.c ipv6: Fix preferred_lft not updating in some cases 2013-09-30 15:06:19 -04:00
addrconf_core.c ipv6: move in6_dev_finish_destroy() into core kernel 2013-08-31 22:30:00 -04:00
addrlabel.c ipv6: fix null pointer dereference in __ip6addrlbl_add 2013-09-04 14:14:53 -04:00
af_inet6.c ipv6: don't call fib6_run_gc() until routing is ready 2013-09-11 17:04:09 -04:00
ah6.c ipv6:introduce function to find route for redirect 2013-09-05 12:44:31 -04:00
anycast.c net: proc: change proc_net_remove to remove_proc_entry 2013-02-18 14:53:08 -05:00
datagram.c net: proc_fs: trivial: print UIDs as unsigned int 2013-08-15 14:37:46 -07:00
esp6.c ipv6:introduce function to find route for redirect 2013-09-05 12:44:31 -04:00
exthdrs.c ipv6/exthdrs: accept tlv which includes only padding 2013-09-11 15:52:27 -04:00
exthdrs_core.c ipv6: Correct comparisons and calculations using skb->tail and skb-transport_header 2013-05-28 23:49:07 -07:00
exthdrs_offload.c ipv6: Pull IPv6 GSO registration out of the module 2012-11-15 17:39:24 -05:00
fib6_rules.c fib6_rules: fix indentation 2013-09-11 16:16:29 -04:00
icmp.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-09-05 14:58:52 -04:00
inet6_connection_sock.c ipv6: use newly introduced __ipv6_addr_needs_scope_id and ipv6_iface_scope_id 2013-03-08 12:29:22 -05:00
inet6_hashtables.c net: do not call sock_put() on TIMEWAIT sockets 2013-10-02 17:05:54 -04:00
ip6_checksum.c ipv6: move csum_ipv6_magic() and udp6_csum_init() into static library 2013-01-08 17:56:10 -08:00
ip6_fib.c net: fib: fib6_add: fix potential NULL pointer dereference 2013-09-11 16:09:59 -04:00
ip6_flowlabel.c ipv6 flowlabel: add __rcu annotations 2013-03-07 16:33:10 -05:00
ip6_gre.c ipv6: gre: correct calculation of max_headroom 2013-09-30 22:04:09 -07:00
ip6_icmp.c ipv6: Kill ipv6 dependency of icmpv6_send(). 2013-04-29 13:54:36 -04:00
ip6_input.c net: add SNMP counters tracking incoming ECN bits 2013-08-08 22:24:59 -07:00
ip6_offload.c ipv6: Add generic UDP Tunnel segmentation 2013-08-31 22:30:01 -04:00
ip6_offload.h ipv6: Pull IPv6 GSO registration out of the module 2012-11-15 17:39:24 -05:00
ip6_output.c ipv6: udp packets following an UFO enqueued packet need also be handled by UFO 2013-09-24 11:43:05 -04:00
ip6_tunnel.c ipv6: Allow the MTU of ipip6 tunnel to be set below 1280 2013-10-07 12:32:26 -04:00
ip6mr.c tunnels: harmonize cleanup done on skb on rx path 2013-09-04 00:27:26 -04:00
ipcomp6.c ipv6:introduce function to find route for redirect 2013-09-05 12:44:31 -04:00
ipv6_sockglue.c ipv6: rename datagram_send_ctl and datagram_recv_ctl 2013-01-31 13:53:08 -05:00
mcast.c ipv6 mcast: use in6_dev_put in timer handlers instead of __in6_dev_put 2013-09-30 22:28:58 -07:00
mip6.c ipv6: Correct comparisons and calculations using skb->tail and skb-transport_header 2013-05-28 23:49:07 -07:00
ndisc.c ipv6: don't call fib6_run_gc() until routing is ready 2013-09-11 17:04:09 -04:00
netfilter.c netfilter: add nf_ipv6_ops hook to fix xt_addrtype with IPv6 2013-05-23 11:58:55 +02:00
output_core.c ipv6: move ip6_local_out into core kernel 2013-08-31 22:30:00 -04:00
ping.c net: ipv6: fix wrong ping_v6_sendmsg return value 2013-07-03 17:42:05 -07:00
proc.c net: add SNMP counters tracking incoming ECN bits 2013-08-08 22:24:59 -07:00
protocol.c ipv6: Pull IPv6 GSO registration out of the module 2012-11-15 17:39:24 -05:00
raw.c net: raw: do not report ICMP redirects to user space 2013-09-24 10:15:49 -04:00
reassembly.c ipv6: drop packets with multiple fragmentation headers 2013-08-20 00:11:24 -07:00
route.c ipv6:introduce function to find route for redirect 2013-09-05 12:44:31 -04:00
sit.c sit: allow to use rtnl ops on fb tunnel 2013-10-01 12:55:53 -04:00
syncookies.c net: syncookies: export cookie_v6_init_sequence/cookie_v6_check 2013-08-28 00:28:04 +02:00
sysctl_net_ipv6.c net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
tcp_ipv6.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-09-05 14:58:52 -04:00
tcpv6_offload.c net: Remove code duplication between offload structures 2012-11-15 17:39:51 -05:00
tunnel6.c net: ipv6: Standardize prefixes for message logging 2012-05-16 01:01:03 -04:00
udp.c net: udp: do not report ICMP redirects to user space 2013-09-24 10:15:49 -04:00
udp_impl.h ipv6: do not clear pinet6 field 2013-05-11 16:26:38 -07:00
udp_offload.c net: unify skb_udp_tunnel_segment() and skb_udp6_tunnel_segment() 2013-08-31 22:30:01 -04:00
udplite.c ipv6: do not clear pinet6 field 2013-05-11 16:26:38 -07:00
xfrm6_input.c
xfrm6_mode_beet.c
xfrm6_mode_ro.c
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c xfrm: allow to avoid copying DSCP during encapsulation 2013-03-06 07:02:45 +01:00
xfrm6_output.c xfrm: revert ipv4 mtu determination to dst_mtu 2013-08-26 12:40:53 +02:00
xfrm6_policy.c xfrm6: release dev before returning error 2013-05-11 17:40:15 -07:00
xfrm6_state.c xfrm: make local error reporting more robust 2013-08-14 13:07:12 +02:00
xfrm6_tunnel.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00