R. Parameswaran
fa5b41cda1
L2TP:Adjust intf MTU, add underlay L3, L2 hdrs. ...
commit b784e7ebfce8cfb16c6f95e14e8532d0768ab7ff upstream.
Existing L2TP kernel code does not derive the optimal MTU for Ethernet
pseudowires and instead leaves this to a userspace L2TP daemon or
operator. If an MTU is not specified, the existing kernel code chooses
an MTU that does not take account of all tunnel header overheads, which
can lead to unwanted IP fragmentation. When L2TP is used without a
control plane (userspace daemon), we would prefer that the kernel does a
better job of choosing a default pseudowire MTU, taking account of all
tunnel header overheads, including IP header options, if any. This patch
addresses this.
Change-set here uses the new kernel function, kernel_sock_ip_overhead(),
to factor the outer IP overhead on the L2TP tunnel socket (including
IP Options, if any) when calculating the default MTU for an Ethernet
pseudowire, along with consideration of the inner Ethernet header.
Signed-off-by: R. Parameswaran <rparames@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Giuliano Procida <gprocida@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-27 16:41:54 +02:00
6lowpan: Off by one handling ->nexthdr
2020-01-29 10:24:22 +01:00
9p/virtio: Add cleanup path in p9_virtio_init
2019-08-04 09:33:28 +02:00
vlan: fix memory leak in vlan_dev_set_egress_priority
2020-01-12 11:24:27 +01:00
appletalk: Set error code if register_snap_client failed
2019-12-21 10:41:45 +01:00
net: atm: Fix potential Spectre v1 vulnerabilities
2019-04-27 09:34:40 +02:00
ax25: enforce CAP_NET_RAW for raw sockets
2019-10-05 12:30:15 +02:00
batman-adv: Fix refcnt leak in batadv_v_ogm_process
2020-05-20 08:15:29 +02:00
Bluetooth: RFCOMM: fix ODEBUG bug in rfcomm_dev_ioctl
2020-04-13 10:32:57 +02:00
netfilter: ebtables: CONFIG_COMPAT: reject trailing data after last rule
2020-01-29 10:24:24 +01:00
caif: reduce stack size with KASAN
2019-05-08 07:19:07 +02:00
can: purge socket error queue on sock destruct
2019-07-10 09:55:33 +02:00
libceph: use kbasename() and kill ceph_file_part()
2019-08-11 12:22:15 +02:00
netprio_cgroup: Fix unlimited memory leak of v2 cgroups
2020-05-20 08:15:39 +02:00
net: dcb: For wild-card lookups, use priority -1, not 0
2018-09-19 22:47:15 +02:00
net: ipv6: add net argument to ip6_dst_lookup_flow
2020-05-20 08:15:30 +02:00
decnet: fix DN_IFREQ_SIZE
2019-12-05 15:35:12 +01:00
KEYS: DNS: fix parsing multiple options
2018-07-22 14:27:39 +02:00
net: dsa: tag_brcm: Fix skb->fwd_offload_mark location
2020-04-13 10:32:53 +02:00
net: add annotations on hh->hh_len lockless accesses
2020-01-12 11:24:19 +01:00
hsr: check protocol version in hsr_newlink()
2020-04-24 07:59:02 +02:00
nl802154: add missing attribute validation for dev_type
2020-03-20 09:07:39 +01:00
net: ipv4: really enforce backoff for redirects
2020-05-20 08:15:39 +02:00
Revert "ipv6: add mtu lock check in __ip6_rt_update_pmtu"
2020-05-20 08:15:39 +02:00
ipx: call ipxitf_put() in ioctl error path
2017-05-25 15:44:41 +02:00
irda: Only insert new objects into the global database via setsockopt
2018-09-15 09:43:01 +02:00
net/af_iucv: always register net_device notifier
2020-01-29 10:24:26 +01:00
kcm: switch order of device registration to fix a crash
2019-04-17 08:36:44 +02:00
xfrm: clean up xfrm protocol checks
2019-09-16 08:19:32 +02:00
L2TP:Adjust intf MTU, add underlay L3, L2 hdrs.
2020-05-27 16:41:54 +02:00
net: ipv6: Remove l3mdev_get_saddr6
2016-09-10 23:12:53 -07:00
lapb: fixed leak of control-blocks.
2019-06-22 08:17:22 +02:00
llc: fix sk_buff refcounting in llc_conn_state_process()
2020-01-29 10:24:33 +01:00
mac80211: add ieee80211_is_any_nullfunc()
2020-05-10 10:28:03 +02:00
net: mac802154: tx: expand tailroom if necessary
2018-09-09 20:01:19 +02:00
net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup
2020-05-20 08:15:30 +02:00
net/ncsi: Improve HNCDSC AEN handler
2016-10-20 11:23:08 -04:00
netfilter: conntrack: avoid gcc-10 zero-length-bounds warning
2020-05-20 08:15:36 +02:00
netlabel: cope with NULL catmap
2020-05-20 08:15:39 +02:00
net: netlink: cap max groups which will be considered in netlink_bind()
2020-03-11 07:53:07 +01:00
net: netrom: Fix potential nr_neigh refcnt leak in nr_add_node
2020-05-02 17:23:08 +02:00
nfc: add missing attribute validation for vendor subcommand
2020-03-20 09:07:40 +01:00
openvswitch: support asymmetric conntrack
2019-12-21 10:42:23 +01:00
packet: fix data-race in fanout_flow_is_huge()
2020-01-29 10:24:35 +01:00
phonet: fix building with clang
2019-03-23 13:19:44 +01:00
net: qrtr: send msgs from local of same id as broadcast
2020-04-24 07:59:02 +02:00
net/rds: Fix 'ib_evt_handler_call' element in 'rds_ib_stat_names'
2020-01-29 10:24:32 +01:00
rfkill: Fix incorrect check to avoid NULL pointer dereference
2020-01-12 11:24:23 +01:00
net: rose: fix a possible stack overflow
2019-04-03 06:24:14 +02:00
rxrpc: Fix service call disconnection
2020-02-14 16:31:08 -05:00
sch_sfq: validate silly quantum values
2020-05-20 08:15:25 +02:00
net: ipv6: add net argument to ip6_dst_lookup_flow
2020-05-20 08:15:30 +02:00
strparser: Fix incorrect strp->need_bytes value.
2018-04-29 11:32:02 +02:00
xprtrdma: Fix backchannel allocation of extra rpcrdma_reps
2020-05-10 10:28:03 +02:00
switchdev: Execute bridge ndos only for bridge ports
2016-10-19 10:58:04 -04:00
net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup
2020-05-20 08:15:30 +02:00
net: fix warning in af_unix
2019-11-28 18:28:28 +01:00
VSOCK: bind to random port for VMADDR_PORT_ANY
2019-12-05 15:34:26 +01:00
cfg80211: check reg_rule for NULL in handle_channel_custom()
2020-03-20 09:07:57 +01:00
net/x25: Fix x25_neigh refcnt leak when receiving frame
2020-05-02 17:23:08 +02:00
xfrm: policy: Fix doulbe free in xfrm_policy_timer
2020-04-02 17:20:34 +02:00
sock: Make sock->sk_stamp thread-safe
2019-01-09 16:16:41 +01:00
New kernel function to get IP overhead on a socket.
2020-05-27 16:41:54 +02:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2016-10-06 09:52:23 -07:00
fa5b41cda1