AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/net
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Paul Moore 04f81f0154 cipso: don't use IPCB() to locate the CIPSO IP option 
Using the IPCB() macro to get the IPv4 options is convenient, but
unfortunately NetLabel often needs to examine the CIPSO option outside
of the scope of the IP layer in the stack.  While historically IPCB()
worked above the IP layer, due to the inclusion of the inet_skb_param
struct at the head of the {tcp,udp}_skb_cb structs, recent commit
971f10ec ("tcp: better TCP_SKB_CB layout to reduce cache line misses")
reordered the tcp_skb_cb struct and invalidated this IPCB() trick.

This patch fixes the problem by creating a new function,
cipso_v4_optptr(), which locates the CIPSO option inside the IP header
without calling IPCB().  Unfortunately, this isn't as fast as a simple
lookup so some additional tweaks were made to limit the use of this
new function.

Cc: <stable@vger.kernel.org> # 3.18
Reported-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Tested-by: Casey Schaufler <casey@schaufler-ca.com>
2015-02-11 14:46:37 -05:00
..
6lowpan net/6lowpan: Remove FSF address from GPL statement. 2014-12-05 12:43:04 +01:00
9p
802
8021q vlan: Add ability to always enable TSO/UFO 2014-12-12 10:58:53 -05:00
appletalk new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
atm put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
ax25 new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
batman-adv batman-adv: fix potential TT client + orig-node memory leak 2015-01-06 11:07:01 +01:00
bluetooth Bluetooth: Fix accepting connections when not using mgmt 2014-12-24 20:02:00 +01:00
bridge bridge: only provide proxy ARP when CONFIG_INET is enabled 2015-01-14 15:08:02 -05:00
caif put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
can can: fix spelling errors 2014-12-07 21:22:05 +01:00
ceph libceph: fix sparse endianness warnings 2015-01-08 20:36:57 +03:00
core neighbour: fix base_reachable_time(_ms) not effective immediatly when changed 2015-01-14 00:28:00 -05:00
dcb
dccp net: introduce helper macro for_each_cmsghdr 2014-12-10 22:41:55 -05:00
decnet new helper: memcpy_to_msg() 2014-11-24 04:28:51 -05:00
dns_resolver
dsa Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ethernet
hsr
ieee802154 Merge tag 'master-2014-12-08' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next 2014-12-09 18:12:03 -05:00
ipv4 cipso: don't use IPCB() to locate the CIPSO IP option 2015-02-11 14:46:37 -05:00
ipv6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2015-01-12 00:14:49 -05:00
ipx switch ipxrtr_route_packet() from iovec to msghdr 2014-11-24 04:28:49 -05:00
irda irda: Convert function pointer arrays and uses to const 2014-12-10 15:33:16 -05:00
iucv net: introduce helper macro for_each_cmsghdr 2014-12-10 22:41:55 -05:00
key new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
l2tp ip_generic_getfrag, udplite_getfrag: switch to passing msghdr 2014-12-09 16:28:22 -05:00
lapb
llc llc: Make llc_sap_action_t function pointer arrays const 2014-12-10 15:21:24 -05:00
mac80211 Revert "mac80211: Fix accounting of the tailroom-needed counter" 2015-01-05 10:33:46 +01:00
mac802154 mac802154: use goto label on failure 2014-12-05 14:18:42 +01:00
mpls mpls: Fix allowed protocols for mpls gso 2014-12-23 23:57:31 -05:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2015-01-12 00:14:49 -05:00
netlabel cipso: don't use IPCB() to locate the CIPSO IP option 2015-02-11 14:46:37 -05:00
netlink genetlink: A genl_bind() to an out-of-range multicast group should not WARN(). 2014-12-29 16:31:49 -05:00
netrom new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
nfc Merge tag 'master-2014-12-08' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next 2014-12-09 18:12:03 -05:00
openvswitch openvswitch: packet messages need their own probe attribtue 2015-01-14 16:49:44 -05:00
packet packet: bail out of packet_snd() if L2 header creation fails 2015-01-11 21:54:03 -05:00
phonet new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
rds rds: Fix min() warning in rds_message_inc_copy_to_user() 2014-12-15 11:49:09 -05:00
rfkill Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
rose new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
rxrpc net: introduce helper macro for_each_cmsghdr 2014-12-10 22:41:55 -05:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-12-10 15:48:20 -05:00
sctp net: introduce helper macro for_each_cmsghdr 2014-12-10 22:41:55 -05:00
sunrpc rpc: fix xdr_truncate_encode to handle buffer ending on page boundary 2015-01-07 14:03:58 -05:00
switchdev bridge: call netdev_sw_port_stp_update when bridge port STP status changes 2014-12-02 20:01:22 -08:00
tipc tipc: fix bug in broadcast retransmit code 2015-01-12 16:01:59 -05:00
unix put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
vmw_vsock put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
wimax
wireless Revert "cfg80211: make WEXT compatibility unselectable" 2014-12-30 16:42:29 -08:00
x25 new helper: memcpy_from_msg() 2014-11-24 04:28:48 -05:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2014-12-08 21:30:21 -05:00
compat.c put iov_iter into msghdr 2014-12-09 16:29:03 -05:00
Kconfig net: introduce generic switch devices support 2014-12-02 20:01:20 -08:00
Makefile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-12-16 15:53:03 -08:00
socket.c [regression] chunk lost from bd9b51 2014-12-19 07:13:21 -05:00
sysctl_net.c