linux/net/ipv4
Vadim Fedorenko 5d3007b6cc net: ip_tunnel: fix mtu calculation
commit 28e104d00281ade30250b24e098bf50887671ea4 upstream.

dev->hard_header_len for tunnel interface is set only when header_ops
are set too and already contains full overhead of any tunnel encapsulation.
That's why there is not need to use this overhead twice in mtu calc.

Fixes: fdafed4599 ("ip_gre: set dev->hard_header_len and dev->needed_headroom properly")
Reported-by: Slava Bacherikov <mail@slava.cc>
Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru>
Link: https://lore.kernel.org/r/1611959267-20536-1-git-send-email-vfedorenko@novek.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-10 09:25:32 +01:00
..
bpfilter
netfilter netfilter: rpfilter: mask ecn bits before fib lookup 2021-01-27 11:47:52 +01:00
Kconfig vti[6]: fix packet tx through bpf_redirect() in XinY cases 2020-04-01 11:02:05 +02:00
Makefile
af_inet.c
ah4.c
arp.c Exempt multicast addresses from five-second neighbor lifetime 2020-11-24 13:28:56 +01:00
cipso_ipv4.c netlabel: cope with NULL catmap 2020-05-20 08:20:08 +02:00
datagram.c inet: stop leaking jiffies on the wire 2019-11-01 14:57:52 -07:00
devinet.c devinet: fix memleak in inetdev_init() 2020-06-10 20:24:54 +02:00
esp4.c esp: avoid unneeded kmap_atomic call 2021-01-23 15:57:58 +01:00
esp4_offload.c xfrm: remove the xfrm_state_put call becofe going to out_reset 2020-06-03 08:21:32 +02:00
fib_frontend.c ipv4: Ignore ECN bits for fib lookups in fib_compute_spec_dst() 2021-01-12 20:16:14 +01:00
fib_lookup.h
fib_notifier.c
fib_rules.c
fib_semantics.c net: Fix the arp error in some cases 2020-06-30 15:36:44 -04:00
fib_trie.c ipv4: Silence suspicious RCU usage warning 2020-09-12 14:18:54 +02:00
fou.c fou: Fix IPv6 netlink policy 2020-01-29 16:45:22 +01:00
gre_demux.c erspan: fix version 1 check in gre_parse_header() 2021-01-12 20:16:15 +01:00
gre_offload.c net: gre: recompute gre csum for sctp over gre tunnels 2020-08-11 15:33:40 +02:00
icmp.c icmp: randomize the global rate limiter 2020-10-29 09:57:27 +01:00
igmp.c
inet_connection_sock.c tcp: fix TCP_USER_TIMEOUT with zero window 2021-01-27 11:47:55 +01:00
inet_diag.c inet_diag: Fix error path to cancel the meseage in inet_req_diag_fill() 2020-11-24 13:28:56 +01:00
inet_fragment.c
inet_hashtables.c net: initialize fastreuse on inet_inherit_port 2020-08-19 08:16:23 +02:00
inet_timewait_sock.c
inetpeer.c inetpeer: fix data-race in inet_putpeer / inet_putpeer 2020-01-04 19:18:39 +01:00
ip_forward.c
ip_fragment.c
ip_gre.c ip_gre: set dev->hard_header_len and dev->needed_headroom properly 2020-10-29 09:58:04 +01:00
ip_input.c
ip_options.c
ip_output.c net: ip: always refragment ip defragmented packets 2021-01-17 14:05:32 +01:00
ip_sockglue.c
ip_tunnel.c net: ip_tunnel: fix mtu calculation 2021-02-10 09:25:32 +01:00
ip_tunnel_core.c
ip_vti.c ip_vti: receive ipip packet by calling ip_tunnel_rcv 2020-06-03 08:21:34 +02:00
ipcomp.c
ipconfig.c
ipip.c net: ipip: fix wrong address family in init error path 2020-06-03 08:20:52 +02:00
ipmr.c net: don't return invalid table id error when we fall back to PF_UNSPEC 2020-06-03 08:20:41 +02:00
ipmr_base.c
metrics.c
netfilter.c netfilter: use actual socket sk rather than skb sk when routing harder 2020-11-18 19:20:17 +01:00
netlink.c
nexthop.c nexthop: Unlink nexthop group entry in error path 2021-01-17 14:05:32 +01:00
ping.c ipv4: fill fl4_icmp_{type,code} in ping_v4_sendmsg 2020-07-22 09:32:47 +02:00
proc.c
protocol.c
raw.c
raw_diag.c inet_diag: return classid for all socket types 2020-03-18 07:17:38 +01:00
route.c ipv4: Fix tos mask in inet_rtm_getroute() 2020-12-08 10:40:25 +01:00
syncookies.c net: Update window_clamp if SOCK_RCVBUF is set 2020-11-18 19:20:32 +01:00
sysctl_net_ipv4.c tcp: correct read of TFO keys on big endian systems 2020-08-19 08:16:23 +02:00
tcp.c tcp: fix TCP_USER_TIMEOUT with zero window 2021-01-27 11:47:55 +01:00
tcp_bbr.c tcp: only postpone PROBE_RTT if RTT is < current min_rtt estimate 2020-11-24 13:28:59 +01:00
tcp_bic.c
tcp_bpf.c bpf, sockmap: Ensure SO_RCVBUF memory is observed on ingress redirect 2020-11-24 13:29:08 +01:00
tcp_cdg.c
tcp_cong.c tcp: Set INET_ECN_xmit configuration in tcp_reinit_congestion_control 2020-12-08 10:40:24 +01:00
tcp_cubic.c tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT 2020-06-30 15:36:47 -04:00
tcp_dctcp.c
tcp_dctcp.h
tcp_diag.c
tcp_fastopen.c tcp: correct read of TFO keys on big endian systems 2020-08-19 08:16:23 +02:00
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c tcp: make TCP_USER_TIMEOUT accurate for zero window probes 2021-02-07 15:35:47 +01:00
tcp_ipv4.c tcp: do not mess with cloned skbs in tcp_add_backlog() 2021-01-27 11:47:55 +01:00
tcp_lp.c
tcp_metrics.c
tcp_minisocks.c tcp: annotate tp->snd_nxt lockless reads 2019-10-13 10:13:08 -07:00
tcp_nv.c
tcp_offload.c
tcp_output.c tcp: make TCP_USER_TIMEOUT accurate for zero window probes 2021-02-07 15:35:47 +01:00
tcp_rate.c
tcp_recovery.c tcp: fix TLP timer not set when CA_STATE changes from DISORDER to OPEN 2021-02-03 23:26:02 +01:00
tcp_scalable.c
tcp_timer.c tcp: make TCP_USER_TIMEOUT accurate for zero window probes 2021-02-07 15:35:47 +01:00
tcp_ulp.c bpf: Sockmap/tls, push write_space updates through ulp updates 2020-01-23 08:22:45 +01:00
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tunnel4.c
udp.c udp: mask TOS bits in udp_v4_early_demux() 2021-01-27 11:47:53 +01:00
udp_diag.c inet_diag: return classid for all socket types 2020-03-18 07:17:38 +01:00
udp_impl.h
udp_offload.c net: udp: fix UDP header access on Fast/frag0 UDP GRO 2020-11-18 19:20:32 +01:00
udp_tunnel.c
udplite.c
xfrm4_input.c
xfrm4_output.c xfrm: Always set XFRM_TRANSFORMED in xfrm{4,6}_output_finish 2020-04-29 16:33:11 +02:00
xfrm4_policy.c net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2020-01-04 19:18:58 +01:00
xfrm4_protocol.c
xfrm4_state.c
xfrm4_tunnel.c