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a5581ef4c2
linux/net
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Oliver Hartkopp a5581ef4c2 can: introduce new raw socket option to join the given CAN filters 
The CAN_RAW socket can set multiple CAN identifier specific filters that lead
to multiple filters in the af_can.c filter processing. These filters are
indenpendent from each other which leads to logical OR'ed filters when applied.

This socket option joines the given CAN filters in the way that only CAN frames
are passed to user space that matched *all* given CAN filters. The semantic for
the applied filters is therefore changed to a logical AND.

This is useful especially when the filterset is a combination of filters where
the CAN_INV_FILTER flag is set in order to notch single CAN IDs or CAN ID
ranges from the incoming traffic.

As the raw_rcv() function is executed from NET_RX softirq the introduced
variables are implemented as per-CPU variables to avoid extensive locking at
CAN frame reception time.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-04-01 11:28:22 +02:00
..
6lowpan 6lowpan: nhc: add other known rfc6282 compressions 2015-02-14 23:08:44 +01:00
9p Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-03-20 18:51:09 -04:00
802 net: Kill dev_rebuild_header 2015-03-02 16:43:41 -05:00
8021q vlan: Add features for stacked vlan device 2015-03-29 13:33:21 -07:00
appletalk appletalk: Use eth_<foo>_addr instead of memset 2015-03-03 17:01:37 -05:00
atm atm: Use eth_<foo>_addr instead of memset 2015-03-03 17:01:37 -05:00
ax25 ax25: Fix the build when CONFIG_INET is disabled 2015-03-05 13:17:39 -05:00
batman-adv batman-adv: Fix use of seq_has_overflowed() 2015-02-22 17:00:08 -05:00
bluetooth Bluetooth: Unify advertising data code paths 2015-03-26 03:30:29 +01:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2015-03-23 22:02:46 -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 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2015-02-19 14:14:42 -08:00
core net: rename dev to orig_dev in deliver_ptype_list_skb 2015-03-31 16:37:43 -04:00
dcb net/dcb: Add IEEE QCN attribute 2015-03-06 21:50:02 -05:00
dccp inet: fix double request socket freeing 2015-03-23 21:40:48 -04:00
decnet net: Remove protocol from struct dst_ops 2015-03-09 16:06:10 -04:00
dns_resolver
dsa net: dsa: Add basic framework to support ndo_fdb functions 2015-03-29 13:23:54 -07:00
ethernet ethernet: Use eth_<foo>_addr instead of memset 2015-03-03 17:01:38 -05:00
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 netlink: implement nla_get_in_addr and nla_get_in6_addr 2015-03-31 13:58:35 -04:00
ipv6 netlink: implement nla_get_in_addr and nla_get_in6_addr 2015-03-31 13:58:35 -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 net: Remove iocb argument from sendmsg and recvmsg 2015-03-02 13:06:31 -05:00
key xfrm: simplify xfrm_address_t use 2015-03-31 13:58:35 -04:00
l2tp netlink: implement nla_get_in_addr and nla_get_in6_addr 2015-03-31 13:58:35 -04:00
lapb
llc net: Remove iocb argument from sendmsg and recvmsg 2015-03-02 13:06:31 -05:00
mac80211 Lots of updates for net-next; along with the usual flurry 2015-03-31 16:39:04 -04:00
mac802154 mac802154: cleanup concurrent check 2015-03-27 19:18:50 +01:00
mpls mpls: In mpls_egress verify the packet length. 2015-03-12 23:05:04 -04:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2015-03-29 12:43:43 -07:00
netlabel netlink: implement nla_put_in_addr and nla_put_in6_addr 2015-03-31 13:58:35 -04:00
netlink rhashtable: provide len to obj_hashfn 2015-03-25 17:18:33 +01:00
netrom net: Kill dev_rebuild_header 2015-03-02 16:43:41 -05:00
nfc net: Remove iocb argument from sendmsg and recvmsg 2015-03-02 13:06:31 -05:00
openvswitch netlink: implement nla_get_in_addr and nla_get_in6_addr 2015-03-31 13:58:35 -04:00
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 2015-03-20 18:51:09 -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 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-03-20 18:51:09 -04:00
sched act_bpf: add initial eBPF support for actions 2015-03-20 19:10:44 -04:00
sctp sctp: avoid to repeatedly declare external variables 2015-03-25 11:40:16 -04:00
sunrpc sunrpc: fix braino in ->poll() 2015-03-08 12:53:46 -07:00
switchdev switchdev: fix stp update API to work with layered netdevices 2015-03-23 16:44:56 -04:00
tipc tipc: fix two bugs in secondary destination lookup 2015-03-29 13:47:36 -07:00
unix net: Remove iocb argument from sendmsg and recvmsg 2015-03-02 13:06:31 -05:00
vmw_vsock net: Remove iocb argument from sendmsg and recvmsg 2015-03-02 13:06:31 -05:00
wimax
wireless Lots of updates for net-next; along with the usual flurry 2015-03-31 16:39:04 -04:00
x25 net: Remove iocb argument from sendmsg and recvmsg 2015-03-02 13:06:31 -05:00
xfrm xfrm: simplify xfrm_address_t use 2015-03-31 13:58:35 -04:00
compat.c net: socket: add support for async operations 2015-03-23 16:41:36 -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 net: socket: add support for async operations 2015-03-23 16:41:36 -04:00
sysctl_net.c