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2be7e212d5
linux/net
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Daniel Borkmann 2be7e212d5 bpf: add bpf_skb_adjust_room helper 
This work adds a helper that can be used to adjust net room of an
skb. The helper is generic and can be further extended in future.
Main use case is for having a programmatic way to add/remove room to
v4/v6 header options along with cls_bpf on egress and ingress hook
of the data path. It reuses most of the infrastructure that we added
for the bpf_skb_change_type() helper which can be used in nat64
translations. Similarly, the helper only takes care of adjusting the
room so that related data is populated and csum adapted out of the
BPF program using it.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03 02:22:52 -07:00
..
6lowpan 6lowpan: Don't set IFF_NO_QUEUE 2017-04-12 22:02:40 +02:00
9p xen: fixes for 4.12 rc2 2017-05-19 15:06:48 -07:00
802 net: introduce __skb_put_[zero, data, u8] 2017-06-20 13:30:14 -04:00
8021q net: add netlink_ext_ack argument to rtnl_link_ops.validate 2017-06-26 23:13:22 -04:00
appletalk networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
atm net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
ax25 networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
batman-adv networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
bluetooth Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2017-07-01 15:57:29 -07:00
bpf bpf: Align packet data properly in program testing framework. 2017-05-02 11:46:28 -04:00
bridge net: convert nf_bridge_info.use from atomic_t to refcount_t 2017-07-01 07:39:07 -07:00
caif net: convert sock.sk_wmem_alloc from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
can networking: introduce and use skb_put_data() 2017-06-16 11:48:37 -04:00
ceph libceph: cleanup old messages according to reconnect seq 2017-05-24 18:10:51 +02:00
core bpf: add bpf_skb_adjust_room helper 2017-07-03 02:22:52 -07:00
dcb dcb: enforce minimum length on IEEE_APPS attribute 2017-05-21 13:42:33 -04:00
dccp net: convert sk_buff.users from atomic_t to refcount_t 2017-07-01 07:39:07 -07:00
decnet net: convert neighbour.refcnt from atomic_t to refcount_t 2017-07-01 07:39:07 -07:00
dns_resolver
dsa net: manual clean code which call skb_put_[data:zero] 2017-06-20 13:30:15 -04:00
ethernet networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
hsr net: add netlink_ext_ack argument to rtnl_link_ops.newlink 2017-06-26 23:13:21 -04:00
ieee802154 net: add netlink_ext_ack argument to rtnl_link_ops.validate 2017-06-26 23:13:22 -04:00
ife
ipv4 bpf: Add support for changing congestion control 2017-07-01 16:15:14 -07:00
ipv6 ipv6: dad: don't remove dynamic addresses if link is down 2017-07-03 01:53:51 -07:00
ipx ipx: call ipxitf_put() in ioctl error path 2017-05-02 15:34:53 -04:00
irda net: manual clean code which call skb_put_[data:zero] 2017-06-20 13:30:15 -04:00
iucv af_iucv: Move sockaddr length checks to before accessing sa_family in bind and connect handlers 2017-06-25 11:42:58 -04:00
kcm net: convert sock.sk_wmem_alloc from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
key net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
l2tp net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
l3mdev
lapb
llc net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
mac80211 net: manual clean code which call skb_put_[data:zero] 2017-06-20 13:30:15 -04:00
mac802154 net: Fix inconsistent teardown and release of private netdev state. 2017-06-07 15:53:24 -04:00
mpls Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-06 22:20:08 -04:00
ncsi networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
netfilter sctp: remove the typedef sctp_inithdr_t 2017-07-01 09:08:42 -07:00
netlabel netlink: pass extended ACK struct to parsing functions 2017-04-13 13:58:22 -04:00
netlink net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
netrom
nfc NFC: Add sockaddr length checks before accessing sa_family in bind handlers 2017-06-23 00:38:31 +02:00
openvswitch datapath: Avoid using stack larger than 1024. 2017-07-01 09:09:59 -07:00
packet net: convert packet_fanout.sk_ref from atomic_t to refcount_t 2017-07-01 07:39:09 -07:00
phonet net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
psample networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
qrtr networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
rds net: convert sock.sk_wmem_alloc from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
rfkill net: rfkill: gpio: Switch to devm_acpi_dev_add_driver_gpios() 2017-06-13 11:07:51 +02:00
rose
rxrpc net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
sched net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
sctp sctp: Add peeloff-flags socket option 2017-07-01 15:26:11 -07:00
smc net/smc: Add warning about remote memory exposure 2017-05-16 14:49:43 -04:00
strparser
sunrpc SUNRPC: ensure correct error is reported by xs_tcp_setup_socket() 2017-05-31 12:26:44 -04:00
switchdev net: switchdev: Change notifier chain to be atomic 2017-06-08 14:16:24 -04:00
tipc net: convert sock.sk_refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
tls tls: return -EFAULT if copy_to_user() fails 2017-06-23 14:19:27 -04:00
unix net: convert unix_address.refcnt from atomic_t to refcount_t 2017-07-01 07:39:08 -07:00
vmw_vsock net: manual clean code which call skb_put_[data:zero] 2017-06-20 13:30:15 -04:00
wimax
wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-21 17:35:22 -04:00
x25 net: manual clean code which call skb_put_[data:zero] 2017-06-20 13:30:15 -04:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-30 12:43:08 -04:00
compat.c
Kconfig tls: kernel TLS support 2017-06-15 12:12:40 -04:00
Makefile tls: kernel TLS support 2017-06-15 12:12:40 -04:00
socket.c net: socket: fix a typo in sockfd_lookup(). 2017-05-22 12:14:04 -04:00
sysctl_net.c sysctl: Remove dead register_sysctl_root 2017-04-16 23:42:49 -05:00