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629029d020
freebsd-skq/sys/netinet6
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ae 629029d020 Clear h/w csum flags on mbuf handled by UDP. 
When checksums of received IP and UDP header already checked, UDP uses
sbappendaddr_locked() to pass received data to the socket.
sbappendaddr_locked() uses given mbuf as is, and if NIC supports checksum
offloading, mbuf contains csum_data and csum_flags that were calculated
for already stripped headers. Some NICs support only limited checksums
offloading and do not use CSUM_PSEUDO_HDR flag, and csum_data contains
some value that UDP/TCP should use for pseudo header checksum calculation.

When L2TP is used for tunneling with mpd5, ng_ksocket receives mbuf with
filled csum_flags and csum_data, that were calculated for outer headers.
When L2TP header is stripped, a packet that was tunneled goes to the IP
layer and due to presence of csum_flags (without CSUM_PSEUDO_HDR) and
csum_data, the UDP/TCP checksum check fails for this packet.

Reported by:	Irina Liakh <spell at itl ua>
Tested by:	Irina Liakh <spell at itl ua>
MFC after:	1 week
2017-04-13 17:03:57 +00:00
..
dest6.c
frag6.c When IPv6 fragments reassembly is complete, update mbuf's csum_data 2017-02-28 22:58:19 +00:00
icmp6.c Constrain IPv6 routes to single FIBs when net.add_addr_allfibs=0 2017-03-17 16:50:37 +00:00
icmp6.h
in6_cksum.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
in6_fib.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
in6_fib.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
in6_gif.c Use correct lookup key for gif route lookups. 2015-12-09 22:09:33 +00:00
in6_ifattach.c Garbage collect IFT_IEEE80211 (but leave the define for possible reuse) 2017-01-28 17:08:40 +00:00
in6_ifattach.h Get closer to a VIMAGE network stack teardown from top to bottom rather 2016-06-21 13:48:49 +00:00
in6_jail.c Allow explicitly assigned IPv6 loopback address to be used in jails 2017-03-31 09:10:05 +00:00
in6_mcast.c sys/net*: minor spelling fixes. 2016-05-03 18:05:43 +00:00
in6_pcb.c The patch provides the same socket option as Linux IP_ORIGDSTADDR. 2017-03-06 04:01:58 +00:00
in6_pcb.h The patch provides the same socket option as Linux IP_ORIGDSTADDR. 2017-03-06 04:01:58 +00:00
in6_pcbgroup.c Unbreak the RSS/PCBGROUp build. 2016-03-31 00:53:23 +00:00
in6_proto.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
in6_rmx.c Merge SVN r295220 (bz) from projects/vnet/ 2016-02-11 17:07:19 +00:00
in6_rss.c [netinet6]: Create a new IPv6 netisr which expects the frames to have been verified. 2015-11-06 23:07:43 +00:00
in6_rss.h Implement RSS hashing/re-hashing for IPv6 ingress packets. 2015-08-29 07:14:29 +00:00
in6_src.c Constrain IPv6 routes to single FIBs when net.add_addr_allfibs=0 2017-03-17 16:50:37 +00:00
in6_var.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
in6.c Constrain IPv6 routes to single FIBs when net.add_addr_allfibs=0 2017-03-17 16:50:37 +00:00
in6.h The patch provides the same socket option as Linux IP_ORIGDSTADDR. 2017-03-06 04:01:58 +00:00
ip6_ecn.h
ip6_fastfwd.c Add ip6_tryforward() - a run to completion forwarding implementation 2016-12-12 10:57:32 +00:00
ip6_forward.c Merge projects/ipsec into head/. 2017-02-06 08:49:57 +00:00
ip6_gre.c
ip6_id.c sys/net*: minor spelling fixes. 2016-05-03 18:05:43 +00:00
ip6_input.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
ip6_mroute.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
ip6_mroute.h
ip6_output.c Fix reference count leak with L2 caching. 2017-03-25 15:06:28 +00:00
ip6_var.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
ip6.h
ip6protosw.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
ip_fw_nat64.h Add ipfw_nat64 module that implements stateless and stateful NAT64. 2016-08-13 16:09:49 +00:00
ip_fw_nptv6.h Add ipfw_nptv6 module that implements Network Prefix Translation for IPv6 2016-07-18 19:46:31 +00:00
mld6_var.h
mld6.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
mld6.h
nd6_nbr.c Constrain IPv6 routes to single FIBs when net.add_addr_allfibs=0 2017-03-17 16:50:37 +00:00
nd6_rtr.c Constrain IPv6 routes to single FIBs when net.add_addr_allfibs=0 2017-03-17 16:50:37 +00:00
nd6.c Constrain IPv6 routes to single FIBs when net.add_addr_allfibs=0 2017-03-17 16:50:37 +00:00
nd6.h Constrain IPv6 routes to single FIBs when net.add_addr_allfibs=0 2017-03-17 16:50:37 +00:00
pim6_var.h
pim6.h
raw_ip6.c The patch provides the same socket option as Linux IP_ORIGDSTADDR. 2017-03-06 04:01:58 +00:00
raw_ip6.h
route6.c
scope6_var.h Merge helper fib* functions used for basic lookups. 2015-12-08 10:50:03 +00:00
scope6.c Add a missing newline to a log message. 2016-02-12 21:17:00 +00:00
sctp6_usrreq.c Remove IPsec related PCB code from SCTP. 2017-02-13 11:37:52 +00:00
sctp6_var.h Whitespace changes. 2016-12-06 10:21:25 +00:00
send.c These files were getting sys/malloc.h and vm/uma.h with header pollution 2016-02-01 17:41:21 +00:00
send.h
tcp6_var.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
udp6_usrreq.c Clear h/w csum flags on mbuf handled by UDP. 2017-04-13 17:03:57 +00:00
udp6_var.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00