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2e5e4185ff89ea0fc44c9dead8dccf306a3b3bbb
linux/net/ipv4
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Jaehee Park e68c5dcf0a net: ipv4: new arp_accept option to accept garp only if in-network 
In many deployments, we want the option to not learn a neighbor from
garp if the src ip is not in the same subnet as an address configured
on the interface that received the garp message. net.ipv4.arp_accept
sysctl is currently used to control creation of a neigh from a
received garp packet. This patch adds a new option '2' to
net.ipv4.arp_accept which extends option '1' by including the subnet
check.

Signed-off-by: Jaehee Park <jhpark1013@gmail.com>
Suggested-by: Roopa Prabhu <roopa@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-15 18:55:49 -07:00
..
bpfilter
net: Revert "net: optimize the sockptr_t for unified kernel/user address spaces"
2020-08-10 12:06:44 -07:00
netfilter
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
2022-05-16 10:10:37 +01:00
af_inet.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-07-14 15:27:35 -07:00
ah4.c
Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2021-06-30 15:51:09 -07:00
arp.c
net: ipv4: new arp_accept option to accept garp only if in-network
2022-07-15 18:55:49 -07:00
bpf_tcp_ca.c
bpf: Require only one of cong_avoid() and cong_control() from a TCP CC
2022-06-23 09:49:57 -07:00
cipso_ipv4.c
cipso: Fix data-races around sysctl.
2022-07-08 12:10:33 +01:00
datagram.c
ipv4: Avoid using RTO_ONLINK with ip_route_connect().
2022-04-22 13:06:03 +01:00
devinet.c
net: rename reference+tracking helpers
2022-06-09 21:52:55 -07:00
esp4_offload.c
net: Fix esp GSO on inter address family tunnels.
2022-03-07 13:14:04 +01:00
esp4.c
net: helper function skb_len_add
2022-06-24 16:24:38 -07:00
fib_frontend.c
ipv4: remove unnecessary type castings
2022-04-30 15:12:58 +01:00
fib_lookup.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-02-17 11:44:20 -08:00
fib_notifier.c
net: ipv4: remove superfluous header files from fib_notifier.c
2021-09-28 17:32:56 -07:00
fib_rules.c
ipv4: remove unnecessary type castings
2022-04-30 15:12:58 +01:00
fib_semantics.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-07-14 15:27:35 -07:00
fib_trie.c
ipv4: Fix a data-race around sysctl_fib_sync_mem.
2022-07-08 12:10:34 +01:00
fou.c
fou: Remove XRFM from NET_FOU Kconfig
2022-04-12 14:56:33 -07:00
gre_demux.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
gre_offload.c
gro: remove rcu_read_lock/rcu_read_unlock from gro_complete handlers
2021-11-24 17:21:42 -08:00
icmp.c
icmp: Fix a data-race around sysctl_icmp_ratemask.
2022-07-13 12:56:49 +01:00
igmp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-05-05 13:03:18 -07:00
inet_connection_sock.c
Revert "net: Add a second bind table hashed by port and address"
2022-06-16 11:07:59 -07:00
inet_diag.c
net: inet: Retire port only listening_hash
2022-05-12 16:52:18 -07:00
inet_fragment.c
ipv4: remove unnecessary type castings
2022-04-30 15:12:58 +01:00
inet_hashtables.c
Revert "net: Add a second bind table hashed by port and address"
2022-06-16 11:07:59 -07:00
inet_timewait_sock.c
tcp: Fix a data-race around sysctl_max_tw_buckets.
2022-07-13 12:56:49 +01:00
inetpeer.c
inetpeer: Fix data-races around sysctl.
2022-07-08 12:10:33 +01:00
ip_forward.c
net: ip: add skb drop reasons to ip forwarding
2022-04-13 13:09:57 +01:00
ip_fragment.c
net: ip: Handle delivery_time in ip defrag
2022-03-03 14:38:48 +00:00
ip_gre.c
erspan: do not assume transport header is always set
2022-06-20 10:00:55 +01:00
ip_input.c
net-core: rx_otherhost_dropped to core_stats
2022-04-07 20:32:49 -07:00
ip_options.c
ipv4: drop fragmentation code from ip_options_build()
2022-01-29 17:53:07 +00:00
ip_output.c
net: Find dst with sk's xfrm policy not ctl_sk
2022-07-11 13:39:56 +01:00
ip_sockglue.c
ipv4: Exposing __ip_sock_set_tos() in ip.h
2021-11-20 14:11:00 +00:00
ip_tunnel_core.c
tunnels: do not assume mac header is set in skb_tunnel_check_pmtu()
2022-06-27 11:50:30 +01:00
ip_tunnel.c
ip_tunnel: allow to inherit from VLAN encapsulated IP
2022-07-13 12:10:21 +01:00
ip_vti.c
ip: use dev_addr_set() in tunnels
2021-10-13 09:41:37 -07:00
ipcomp.c
Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2021-06-30 15:51:09 -07:00
ipconfig.c
net: ipconfig: use strscpy to replace strlcpy
2022-07-04 10:28:00 +01:00
ipip.c
ip: use dev_addr_set() in tunnels
2021-10-13 09:41:37 -07:00
ipmr_base.c
ipmr: adopt rcu_read_lock() in mr_dump()
2022-06-24 11:34:38 +01:00
ipmr.c
ipmr: fix a lockdep splat in ipmr_rtm_dumplink()
2022-06-27 12:01:01 +01:00
Kconfig
fou: Remove XRFM from NET_FOU Kconfig
2022-04-12 14:56:33 -07:00
Makefile
bpf: Clean up sockmap related Kconfigs
2021-02-26 12:28:03 -08:00
metrics.c
treewide: rename nla_strlcpy to nla_strscpy.
2020-11-16 08:08:54 -08:00
netfilter.c
netfilter: Use l3mdev flow key when re-routing mangled packets
2022-05-16 13:03:29 +02:00
netlink.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
nexthop.c
nexthop: Fix data-races around nexthop_compat_mode.
2022-07-13 12:56:50 +01:00
ping.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-06-23 12:33:24 -07:00
proc.c
tcp: allocate tcp_death_row outside of struct netns_ipv4
2022-01-26 19:00:31 -08:00
protocol.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
raw_diag.c
raw: complete rcu conversion
2022-06-21 11:38:29 +02:00
raw.c
raw: fix a typo in raw_icmp_error()
2022-06-24 22:48:33 -07:00
route.c
net: change the type of ip_route_input_rcu to static
2022-07-12 15:08:45 +02:00
syncookies.c
tcp: Fix data-races around sysctl_tcp_ecn.
2022-07-13 12:56:49 +01:00
sysctl_net_ipv4.c
tcp: Fix a data-race around sysctl_tcp_ecn_fallback.
2022-07-13 12:56:49 +01:00
tcp_bbr.c
net: allow gso_max_size to exceed 65536
2022-05-16 10:18:55 +01:00
tcp_bic.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_bpf.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-06-23 12:33:24 -07:00
tcp_cdg.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_cong.c
tcp: Add tracepoint for tcp_set_ca_state
2022-04-07 20:33:15 -07:00
tcp_cubic.c
tcp_cubic: make hystart_ack_delay() aware of BIG TCP
2022-05-16 10:18:56 +01:00
tcp_dctcp.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_dctcp.h
tcp: refactor DCTCP ECN ACK handling
2018-10-10 22:26:00 -07:00
tcp_diag.c
inet_diag: Move the INET_DIAG_REQ_BYTECODE nlattr to cb->data
2020-02-27 18:50:19 -08:00
tcp_fastopen.c
net/ipv4/tcp_fastopen.c: remove superfluous header files from tcp_fastopen.c
2021-09-20 13:09:06 +01:00
tcp_highspeed.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_htcp.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_hybla.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_illinois.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_input.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-07-14 15:27:35 -07:00
tcp_ipv4.c
net: Find dst with sk's xfrm policy not ctl_sk
2022-07-11 13:39:56 +01:00
tcp_lp.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_metrics.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_minisocks.c
tcp: md5: incorrect tcp_header_len for incoming connections
2022-04-22 15:05:59 -07:00
tcp_nv.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_offload.c
net: move gro definitions to include/net/gro.h
2021-11-16 13:16:54 +00:00
tcp_output.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-07-14 15:27:35 -07:00
tcp_rate.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-04-28 13:02:01 -07:00
tcp_recovery.c
tcp: use tcp_skb_sent_after() instead in RACK
2022-04-30 13:56:46 +01:00
tcp_scalable.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_timer.c
net: keep sk->sk_forward_alloc as small as possible
2022-06-10 16:21:27 -07:00
tcp_ulp.c
bpf: sockmap: Only check ULP for TCP sockets
2020-03-09 22:34:58 +01:00
tcp_vegas.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_vegas.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tcp_veno.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_westwood.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp_yeah.c
tcp: add accessors to read/set tp->snd_cwnd
2022-04-06 12:05:41 -07:00
tcp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-07-14 15:27:35 -07:00
tunnel4.c
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
udp_bpf.c
net: remove noblock parameter from recvmsg() entities
2022-04-12 15:00:25 +02:00
udp_diag.c
net: Use nlmsg_unicast() instead of netlink_unicast()
2021-07-13 09:28:29 -07:00
udp_impl.h
net: remove noblock parameter from recvmsg() entities
2022-04-12 15:00:25 +02:00
udp_offload.c
gro: remove rcu_read_lock/rcu_read_unlock from gro_complete handlers
2021-11-24 17:21:42 -08:00
udp_tunnel_core.c
net/ipv4/udp_tunnel_core.c: remove superfluous header files from udp_tunnel_core.c
2021-09-21 10:17:20 +01:00
udp_tunnel_nic.c
udp_tunnel: Fix end of loop test in udp_tunnel_nic_unregister()
2022-02-23 12:35:00 +00:00
udp_tunnel_stub.c
udp_tunnel: add central NIC RX port offload infrastructure
2020-07-10 13:54:00 -07:00
udp.c
skmsg: Get rid of skb_clone()
2022-06-20 14:05:52 +02:00
udplite.c
net: add per_cpu_fw_alloc field to struct proto
2022-06-10 16:21:26 -07:00
xfrm4_input.c
xfrm: state: remove extract_input indirection from xfrm_state_afinfo
2020-05-06 09:40:08 +02:00
xfrm4_output.c
xfrm: fix unused variable warning if CONFIG_NETFILTER=n
2020-05-11 15:12:27 +02:00
xfrm4_policy.c
net: rename reference+tracking helpers
2022-06-09 21:52:55 -07:00
xfrm4_protocol.c
net: xfrm: unexport __init-annotated xfrm4_protocol_init()
2022-06-08 10:10:13 -07:00
xfrm4_state.c
xfrm: remove output_finish indirection from xfrm_state_afinfo
2020-05-06 09:40:08 +02:00
xfrm4_tunnel.c
net/ipv4/xfrm4_tunnel.c: remove superfluous header files from xfrm4_tunnel.c
2021-09-23 10:10:00 +02:00