Daniel Borkmann 8050c0f027 bpf: allow bpf_csum_diff to feed bpf_l3_csum_replace as well ... Commit 7d672345ed ("bpf: add generic bpf_csum_diff helper") added a generic checksum diff helper that can feed bpf_l4_csum_replace() with a target __wsum diff that is to be applied to the L4 checksum. This facility is very flexible, can be cascaded, allows for adding, removing, or diffing data, or for calculating the pseudo header checksum from scratch, but it can also be reused for working with the IPv4 header checksum. Thus, analogous to bpf_l4_csum_replace(), add a case for header field value of 0 to change the checksum at a given offset through a new helper csum_replace_by_diff(). Also, in addition to that, this provides an easy to use interface for feeding precalculated diffs f.e. coming from a map. It nicely complements bpf_l3_csum_replace() that currently allows only for csum updates of 2 and 4 byte diffs. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-03-08 13:55:15 -05:00
..
6lowpan	6lowpan: iphc: fix invalid case handling	2016-02-26 09:08:15 +01:00
9p	Rework and error handling fixes, primarily in the fscatch and fd transports.	2016-01-24 12:39:09 -08:00
802
8021q	net: 8021q: use __ethtool_get_ksettings	2016-02-25 22:06:46 -05:00
appletalk	appletalk: fix erroneous return value	2016-02-18 14:59:34 -05:00
atm	net: Generalise wq_has_sleeper helper	2015-11-30 14:47:33 -05:00
ax25	net: add validation for the socket syscall protocol argument	2015-12-14 16:09:30 -05:00
batman-adv	batman-adv: clarify CFG80211 dependency	2016-03-02 13:45:47 -05:00
bluetooth	Bluetooth: hci_core: cancel power off delayed work properly	2016-02-23 20:29:38 +01:00
bridge	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-03-08 12:34:12 -05:00
caif	net: caif: fix erroneous return value	2016-02-18 14:59:35 -05:00
can	can: avoid using timeval for uapi	2015-10-13 17:42:34 +02:00
ceph	libceph: don't spam dmesg with stray reply warnings	2016-02-24 20:28:51 +01:00
core	bpf: allow bpf_csum_diff to feed bpf_l3_csum_replace as well	2016-03-08 13:55:15 -05:00
dcb	net/dcb: make dcbnl.c explicitly non-modular	2015-10-09 07:52:27 -07:00
dccp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-02-23 00:09:14 -05:00
decnet	net: add validation for the socket syscall protocol argument	2015-12-14 16:09:30 -05:00
dns_resolver	net: dns_resolver: convert time_t to time64_t	2015-11-18 16:27:46 -05:00
dsa	net: dsa: support VLAN filtering switchdev attr	2016-03-01 16:24:51 -05:00
ethernet	eth: Pull header from first fragment via eth_get_headlen	2016-02-24 13:58:05 -05:00
hsr	net/hsr: fix a warning message	2015-11-23 14:56:15 -05:00
ieee802154	ieee802154: 6lowpan: fix return of netdev notifier	2016-02-23 20:29:40 +01:00
ipv4	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-03-08 12:34:12 -05:00
ipv6	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-03-08 12:34:12 -05:00
ipx
irda	irda: fix a potential use-after-free in ircomm_param_request	2016-01-29 22:56:46 -08:00
iucv	af_iucv: Validate socket address length in iucv_sock_bind()	2016-01-19 14:21:08 -05:00
key	af_key: fix two typos	2015-10-23 03:05:19 -07:00
l2tp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-02-23 00:09:14 -05:00
l3mdev	net: l3mdev: address selection should only consider devices in L3 domain	2016-02-26 14:22:26 -05:00
lapb
llc	af_llc: fix types on llc_ui_wait_for_conn	2016-02-17 16:12:13 -05:00
mac80211	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-03-08 12:34:12 -05:00
mac802154	mac802154: Fixes kernel oops when unloading a radio driver	2016-02-23 20:29:40 +01:00
mpls	mpls: autoload lwt module	2016-02-21 22:00:28 -05:00
netfilter	net: remove skb_sender_cpu_clear()	2016-03-01 17:36:47 -05:00
netlabel	netlabel: do not initialise statics to NULL	2016-03-07 11:08:26 -05:00
netlink	nfnetlink: Revert "nfnetlink: add support for memory mapped netlink"	2016-02-18 11:42:22 -05:00
netrom
nfc	NFC 4.5 pull request	2016-01-04 21:48:15 -05:00
openvswitch	ovs: propagate per dp max headroom to all vports	2016-03-01 15:54:30 -05:00
packet	net: core: use __ethtool_get_ksettings	2016-02-25 22:06:47 -05:00
phonet	sock: struct proto hash function may error	2016-02-11 03:54:14 -05:00
rds	RDS: IB: Support Fastreg MR (FRMR) memory registration mode	2016-03-02 14:13:19 -05:00
rfkill	Here's another round of updates for -next:	2016-03-01 17:03:27 -05:00
rose
rxrpc	rxrpc: Don't try to map ICMP to error as the lower layer already did that	2016-03-04 16:02:03 +00:00
sched	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-03-08 12:34:12 -05:00
sctp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-03-08 12:34:12 -05:00
sunrpc	One fix for a bug that could cause a NULL write past the end of a buffer	2016-02-25 19:31:01 -08:00
switchdev	net: ndo_fdb_dump should report -EMSGSIZE to rtnl_fdb_dump.	2016-02-26 15:04:02 -05:00
tipc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-03-08 12:34:12 -05:00
unix	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-02-23 00:09:14 -05:00
vmw_vsock	vsock: Fix blocking ops call in prepare_to_wait	2016-02-13 05:57:39 -05:00
wimax	net:wimax: Fix doucble word "the the" in networking.xml	2015-08-09 22:43:52 -07:00
wireless	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-03-08 12:34:12 -05:00
x25
xfrm	net: preserve IP control block during GSO segmentation	2016-01-15 14:35:24 -05:00
compat.c
Kconfig	net: mellanox: add DEVLINK dependencies	2016-03-03 17:08:59 -05:00
Makefile	net: Introduce L3 Master device abstraction	2015-09-29 20:40:32 -07:00
socket.c	kmemcg: account certain kmem allocations to memcg	2016-01-14 16:00:49 -08:00
sysctl_net.c	net: sysctl: fix a kmemleak warning	2015-10-23 06:22:08 -07:00