Eric Dumazet cd8ae85299 tcp: provide SYN headers for passive connections ... This patch allows a server application to get the TCP SYN headers for its passive connections. This is useful if the server is doing fingerprinting of clients based on SYN packet contents. Two socket options are added: TCP_SAVE_SYN and TCP_SAVED_SYN. The first is used on a socket to enable saving the SYN headers for child connections. This can be set before or after the listen() call. The latter is used to retrieve the SYN headers for passive connections, if the parent listener has enabled TCP_SAVE_SYN. TCP_SAVED_SYN is read once, it frees the saved SYN headers. The data returned in TCP_SAVED_SYN are network (IPv4/IPv6) and TCP headers. Original patch was written by Tom Herbert, I changed it to not hold a full skb (and associated dst and conntracking reference). We have used such patch for about 3 years at Google. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Tested-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-05-05 16:02:34 -04:00
..
6lowpan	6lowpan: nhc: add other known rfc6282 compressions	2015-02-14 23:08:44 +01:00
9p	9p: patches for 4.1 merge window	2015-04-18 17:45:30 -04:00
802	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
8021q	vlan: implement ndo_get_iflink	2015-04-02 14:05:00 -04:00
appletalk	appletalk: Use eth_<foo>_addr instead of memset	2015-03-03 17:01:37 -05:00
atm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-04-15 09:00:47 -07:00
ax25	ax25: Fix the build when CONFIG_INET is disabled	2015-03-05 13:17:39 -05:00
batman-adv	dev: introduce dev_get_iflink()	2015-04-02 14:04:59 -04:00
bluetooth	Bluetooth: hidp: Fix regression with older userspace and flags validation	2015-04-18 11:01:08 -04:00
bridge	net: Export IGMP/MLD message validation code	2015-05-04 14:49:23 -04:00
caif	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-03-20 18:51:09 -04:00
can	can: introduce new raw socket option to join the given CAN filters	2015-04-01 11:28:22 +02:00
ceph	crush: straw2 bucket type with an efficient 64-bit crush_ln()	2015-04-22 18:33:43 +03:00
core	net: fix two sparse warnings introduced by IGMP/MLD parsing exports	2015-05-04 19:19:54 -04:00
dcb	net/dcb: Add IEEE QCN attribute	2015-03-06 21:50:02 -05:00
dccp	inet: fix possible panic in reqsk_queue_unlink()	2015-04-24 11:39:15 -04:00
decnet	netfilter: Pass socket pointer down through okfn().	2015-04-07 15:25:55 -04:00
dns_resolver
dsa	net: dsa: Fix scope of eeprom-length property	2015-04-29 15:35:04 -04:00
ethernet	etherdev: Use skb->data to retrieve Ethernet header instead of eth_hdr	2015-05-03 22:30:36 -04:00
hsr	net/hsr: Fix NULL pointer dereference and refcnt bugs when deleting a HSR interface.	2015-03-01 13:40:23 -05:00
ieee802154	ieee802154: don't export static symbol	2015-03-14 17:11:31 +01:00
ipv4	tcp: provide SYN headers for passive connections	2015-05-05 16:02:34 -04:00
ipv6	net: fix two sparse warnings introduced by IGMP/MLD parsing exports	2015-05-04 19:19:54 -04:00
ipx	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
irda	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-03-09 23:38:02 -04:00
iucv	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-04-02 16:16:53 -04:00
key	xfrm: simplify xfrm_address_t use	2015-03-31 13:58:35 -04:00
l2tp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-04-06 22:34:15 -04:00
lapb
llc	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
mac80211	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-04-15 09:00:47 -07:00
mac802154	mac802154: cleanup concurrent check	2015-03-27 19:18:50 +01:00
mpls	mpls: Prevent use of implicit NULL label as outgoing label	2015-04-22 14:24:54 -04:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf	2015-04-27 23:12:34 -04:00
netlabel	netlink: implement nla_put_in_addr and nla_put_in6_addr	2015-03-31 13:58:35 -04:00
netlink	net: fix crash in build_skb()	2015-04-25 15:49:49 -04:00
netrom	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
nfc	nfc: Fix portid type in urelease_work	2015-04-13 16:35:16 -04:00
openvswitch	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-04-15 09:00:47 -07:00
packet	af_packet: pass checksum validation status to the user	2015-03-23 22:01:28 -04:00
phonet	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
rds	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-04-14 15:44:14 -04:00
rfkill	Last round of updates for net-next:	2015-02-04 14:57:45 -08:00
rose	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
rxrpc	new helper: msg_data_left()	2015-04-11 15:53:35 -04:00
sched	sch_choke: Use flow_keys_digest	2015-05-04 00:09:09 -04:00
sctp	sctp: avoid to repeatedly declare external variables	2015-03-25 11:40:16 -04:00
sunrpc	NFS client updates for Linux 4.1	2015-04-26 17:33:59 -07:00
switchdev	switchdev: fix stp update API to work with layered netdevices	2015-03-23 16:44:56 -04:00
tipc	tipc: deal with return value of tipc_conn_new callback	2015-05-04 15:04:01 -04:00
unix	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-04-27 14:05:19 -07:00
vmw_vsock	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
wimax
wireless	cfg80211: don't allow disabling WEXT if it's required	2015-04-08 09:19:29 +02:00
x25	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-04-14 15:44:14 -04:00
compat.c	net: switch importing msghdr from userland to {compat_,}import_iovec()	2015-04-09 00:02:26 -04:00
Kconfig	kconfig: use bool instead of boolean for type definition attributes	2015-01-07 13:08:04 +01:00
Makefile	mpls: Refactor how the mpls module is built	2015-03-04 00:26:06 -05:00
socket.c	VFS: net/: d_inode() annotations	2015-04-15 15:06:56 -04:00
sysctl_net.c