linux-toradex.git/net/ipv6/ip6_checksum.c, branch v4.4.65 Linux kernel for Apalis and Colibri modules udp: Generic functions to set checksum 2014-06-05T05:46:38+00:00 Tom Herbert therbert@google.com 2014-06-05T00:19:48+00:00 af5fcba7f38f3166392f4087ab734433c84f160b Added udp_set_csum and udp6_set_csum functions to set UDP checksums in packets. These are for simple UDP packets such as those that might be created in UDP tunnels. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Added udp_set_csum and udp6_set_csum functions to set UDP checksums
in packets. These are for simple UDP packets such as those that might
be created in UDP tunnels.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: Implmement RFC 6936 (zero RX csums for UDP/IPv6) 2014-05-05T19:26:30+00:00 Tom Herbert therbert@google.com 2014-05-02T23:29:58+00:00 4068579e1e098fa81d48db9ba4432ab664c58561 RFC 6936 relaxes the requirement of RFC 2460 that UDP/IPv6 packets which are received with a zero UDP checksum value must be dropped. RFC 6936 allows zero checksums to support tunnels over UDP. When sk_no_check is set we allow on a socket we allow a zero IPv6 UDP checksum. This is for both sending zero checksum and accepting a zero checksum on receive. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
RFC 6936 relaxes the requirement of RFC 2460 that UDP/IPv6 packets which
are received with a zero UDP checksum value must be dropped. RFC 6936
allows zero checksums to support tunnels over UDP.

When sk_no_check is set we allow on a socket we allow a zero IPv6
UDP checksum. This is for both sending zero checksum and accepting
a zero checksum on receive.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: Call skb_checksum_init in IPv6 2014-05-05T19:26:30+00:00 Tom Herbert therbert@google.com 2014-05-02T23:29:51+00:00 e4f45b7f40bdaade5ef8f45e7c6daed4c909fdf5 Call skb_checksum_init instead of private functions. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Call skb_checksum_init instead of private functions.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ipv6: log src and dst along with "udp checksum is 0" 2014-02-26T20:46:25+00:00 Bjørn Mork bjorn@mork.no 2014-02-25T20:11:02+00:00 84a3e72c3a5c2441be46c4afba95fe5af3c370e7 These info messages are rather pointless without any means to identify the source of the bogus packets. Logging the src and dst addresses and ports may help a bit. Cc: Joe Perches <joe@perches.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net> 
These info messages are rather pointless without any means to identify
the source of the bogus packets.  Logging the src and dst addresses and
ports may help a bit.

Cc: Joe Perches <joe@perches.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
ipv6: move csum_ipv6_magic() and udp6_csum_init() into static library 2013-01-09T01:56:10+00:00 Cong Wang amwang@redhat.com 2013-01-07T20:52:40+00:00 acb3e04119fbf9145eb6d6bb707f6fb662ab4d3b As suggested by David, udp6_csum_init() is too big to be inlined, move it to ipv6 static library, net/ipv6/ip6_checksum.c. And the generic csum_ipv6_magic() too. Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
As suggested by David, udp6_csum_init() is too big to be inlined,
move it to ipv6 static library, net/ipv6/ip6_checksum.c.

And the generic csum_ipv6_magic() too.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>