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68983a354a
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Manoj Basapathi 68983a354a netfilter: xtables: Add snapshot of hardidletimer target 
This is a snapshot of hardidletimer netfilter target.

This patch implements a hardidletimer Xtables target that can be
used to identify when interfaces have been idle for a certain period
of time.

Timers are identified by labels and are created when a rule is set
with a new label. The rules also take a timeout value (in seconds) as
an option. If more than one rule uses the same timer label, the timer
will be restarted whenever any of the rules get a hit.

One entry for each timer is created in sysfs. This attribute contains
the timer remaining for the timer to expire. The attributes are
located under the xt_idletimer class:

/sys/class/xt_idletimer/timers/<label>

When the timer expires, the target module sends a sysfs notification
to the userspace, which can then decide what to do (eg. disconnect to
save power)

Compared to IDLETIMER, HARDIDLETIMER can send notifications when
CPU is in suspend too, to notify the timer expiry.

v1->v2: Moved all functionality into IDLETIMER module to avoid
code duplication per comment from Florian.

Signed-off-by: Manoj Basapathi <manojbm@codeaurora.org>
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-03-15 15:20:16 +01:00
..
6lowpan
9p 9p pull request for inclusion in 5.4 2019-09-27 15:10:34 -07:00
802 net: 802: psnap.c: Use built-in RCU list checking 2020-02-24 13:02:53 -08:00
8021q net: vlan: suppress "failed to kill vid" warnings 2020-02-17 14:30:54 -08:00
appletalk
atm proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
ax25 net: Make sock protocol value checks more specific 2020-01-09 18:41:40 -08:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
bluetooth Bluetooth: Fix race condition in hci_release_sock() 2020-01-26 10:34:17 +02:00
bpf bpf: Add selftests for BPF_MODIFY_RETURN 2020-03-04 13:41:06 -08:00
bpfilter kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
bridge net: bridge: fix stale eth hdr pointer in br_dev_xmit 2020-02-24 11:11:19 -08:00
caif net: caif: Add lockdep expression to RCU traversal primitive 2020-03-11 22:55:25 -07:00
can can: j1939: j1939_sk_bind(): take priv after lock is held 2019-12-08 11:52:02 +01:00
ceph Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-02-08 13:26:41 -08:00
core Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-03-13 20:52:03 -07:00
dcb
dccp Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-02-29 15:53:35 -08:00
decnet net: Make sock protocol value checks more specific 2020-01-09 18:41:40 -08:00
dns_resolver
dsa Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
ethernet net: remove eth_change_mtu 2020-01-27 11:09:31 +01:00
ethtool ethtool: fix spelling mistake "exceeeds" -> "exceeds" 2020-03-13 11:23:33 -07:00
hsr hsr: fix refcnt leak of hsr slave interface 2020-03-05 11:59:47 -08:00
ieee802154 nl802154: add missing attribute validation for dev_type 2020-03-03 13:28:48 -08:00
ife
ipv4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-03-13 20:52:03 -07:00
ipv6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
iucv treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
kcm bpf: Use bpf_prog_run_pin_on_cpu() at simple call sites. 2020-02-24 16:20:09 -08:00
key
l2tp l2tp: Replace zero-length array with flexible-array member 2020-02-28 12:08:37 -08:00
l3mdev
lapb
llc af_llc: fix if-statement empty body warning 2020-02-26 20:38:13 -08:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
mac802154
mpls net: mpls: Replace zero-length array with flexible-array member 2020-02-28 12:08:37 -08:00
mptcp mptcp: drop unneeded checks 2020-03-15 00:19:03 -07:00
ncsi net/ncsi: Support for multi host mellanox card 2020-01-09 18:36:22 -08:00
netfilter netfilter: xtables: Add snapshot of hardidletimer target 2020-03-15 15:20:16 +01:00
netlabel netlabel_domainhash.c: Use built-in RCU list checking 2020-02-18 12:44:23 -08:00
netlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
netrom net: netrom: Add missing annotation for nr_neigh_stop() 2020-02-24 13:26:49 -08:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
nsh
openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
packet net/packet: tpacket_rcv: do not increment ring index on drop 2020-03-11 23:12:16 -07:00
phonet net: Remove redundant BUG_ON() check in phonet_pernet 2020-01-03 12:25:50 -08:00
psample net: psample: fix skb_over_panic 2019-11-26 14:40:13 -08:00
qrtr net: qrtr: Fix FIXME related to qrtr_ns_init() 2020-03-03 17:52:21 -08:00
rds net/rds: Track user mapped pages through special API 2020-02-16 18:37:09 -08:00
rfkill rfkill: Fix incorrect check to avoid NULL pointer dereference 2019-12-16 10:15:49 +01:00
rose Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-01-26 10:40:21 +01:00
rxrpc rxrpc: Fix call RCU cleanup using non-bh-safe locks 2020-02-07 11:20:57 +01:00
sched net: sched: RED: Introduce an ECN nodrop mode 2020-03-14 21:03:46 -07:00
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
smc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
strparser
sunrpc xprtrdma: Fix DMA scatter-gather list mapping imbalance 2020-02-13 15:35:33 -05:00
switchdev net: switchdev: do not propagate bridge updates across bridges 2020-02-26 20:58:33 -08:00
tipc tipc: add NULL pointer check to prevent kernel oops 2020-03-15 00:07:00 -07:00
tls Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2020-02-21 15:22:45 -08:00
unix net: datagram: drop 'destructor' argument from several helpers 2020-02-28 12:12:53 -08:00
vmw_vsock Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-02-27 18:31:39 -08:00
wimax
wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
x25 net: x25: convert to list_for_each_entry_safe() 2020-02-16 18:59:42 -08:00
xdp xdp: Replace zero-length array with flexible-array member 2020-02-28 12:08:37 -08:00
xfrm net: datagram: drop 'destructor' argument from several helpers 2020-02-28 12:12:53 -08:00
compat.c y2038: socket: use __kernel_old_timespec instead of timespec 2019-11-15 14:38:29 +01:00
Kconfig net: disable BRIDGE_NETFILTER by default 2020-02-20 15:02:02 -08:00
Makefile mptcp: Add MPTCP socket stubs 2020-01-24 13:44:07 +01:00
socket.c socket: fix unused-function warning 2020-01-08 15:02:21 -08:00
sysctl_net.c