linux/net
David Ahern 9515a2e082 net/ipv4: Allow send to local broadcast from a socket bound to a VRF
Message sends to the local broadcast address (255.255.255.255) require
uc_index or sk_bound_dev_if to be set to an egress device. However,
responses or only received if the socket is bound to the device. This
is overly constraining for processes running in an L3 domain. This
patch allows a socket bound to the VRF device to send to the local
broadcast address by using IP_UNICAST_IF to set the egress interface
with packet receipt handled by the VRF binding.

Similar to IP_MULTICAST_IF, relax the constraint on setting
IP_UNICAST_IF if a socket is bound to an L3 master device. In this
case allow uc_index to be set to an enslaved if sk_bound_dev_if is
an L3 master device and is the master device for the ifindex.

In udp and raw sendmsg, allow uc_index to override the oif if
uc_index master device is oif (ie., the oif is an L3 master and the
index is an L3 slave).

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25 21:51:31 -05:00
..
6lowpan License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
9p 9p: add missing module license for xen transport 2018-01-15 13:13:53 -05:00
802 treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
8021q net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
appletalk net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
atm net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
ax25 net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
batman-adv batman-adv: Convert packet.h to uapi header 2017-12-21 15:35:53 -05:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-17 00:10:42 -05:00
bpf bpf: add meta pointer for direct access 2017-09-26 13:36:44 -07:00
bridge bridge: return boolean instead of integer in br_multicast_is_router 2018-01-22 16:13:20 -05:00
caif caif: reduce stack size with KASAN 2018-01-19 14:02:12 -05:00
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-19 22:59:33 -05:00
ceph We have a set of file locking improvements from Zheng, rbd rw/ro 2017-11-21 05:38:32 -10:00
core net: Move net:netns_ids destruction out of rtnl_lock() and document locking scheme 2018-01-25 11:15:35 -05:00
dcb
dccp net: dccp: Remove dccpprobe module 2018-01-02 14:27:30 -05:00
decnet net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
dns_resolver KEYS: Fix race between updating and finding a negative key 2017-10-18 09:12:40 +01:00
dsa net: dsa: Support internal phy on 'cpu' port 2018-01-23 19:22:38 -05:00
ethernet
hsr net: hsr: Convert timers to use timer_setup() 2017-10-25 13:00:27 +09:00
ieee802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
ife MAINTAINERS: Update Yotam's E-mail 2017-11-01 12:19:03 +09:00
ipv4 net/ipv4: Allow send to local broadcast from a socket bound to a VRF 2018-01-25 21:51:31 -05:00
ipv6 net: erspan: use bitfield instead of mask and offset 2018-01-25 21:39:43 -05:00
ipx net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
iucv
kcm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-24 23:44:15 -05:00
key af_key: Fix memory leak in key_notify_policy. 2018-01-10 09:45:11 +01:00
l2tp l2tp: remove switch block in l2tp_nl_cmd_session_create() 2018-01-19 15:10:23 -05:00
l3mdev
lapb treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
llc net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
mac80211 debugfs_sta: Remove unneeded semicolons 2018-01-22 14:03:28 +01:00
mac802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
mpls net: use rtnl_register_module where needed 2017-12-04 11:32:39 -05:00
ncsi net/ncsi: Don't take any action on HNCDSC AEN 2017-12-18 14:50:11 -05:00
netfilter netfilter: remove messages print and boot/module load time 2018-01-19 18:39:49 +01:00
netlabel net/netlabel: Add list_next_rcu() in rcu_dereference(). 2017-11-18 10:32:41 +09:00
netlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-19 22:59:33 -05:00
netrom net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
nfc treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
nsh openvswitch: enable NSH support 2017-11-08 16:12:33 +09:00
openvswitch openvswitch: add erspan version I and II support 2018-01-25 21:39:43 -05:00
packet net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
phonet net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
psample MAINTAINERS: Update Yotam's E-mail 2017-11-01 12:19:03 +09:00
qrtr net: use rtnl_register_module where needed 2017-12-04 11:32:39 -05:00
rds Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-23 13:51:56 -05:00
rfkill
rose net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
rxrpc net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-24 23:44:15 -05:00
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-23 13:51:56 -05:00
smc net/smc: check for healthy link group resp. connections 2018-01-25 16:10:42 -05:00
strparser strparser: Call sock_owned_by_user_nocheck 2017-12-28 14:28:22 -05:00
sunrpc NFS client fixes for Linux 4.15-rc4 2017-12-16 13:12:53 -08:00
switchdev net: bridge: Add/del switchdev object on host join/leave 2017-11-10 13:41:40 +09:00
tipc tipc: fix race between poll() and setsockopt() 2018-01-19 15:12:21 -05:00
tls tls: Correct length of scatterlist in tls_sw_sendpage 2018-01-22 16:25:21 -05:00
unix net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
vmw_vsock VSOCK: fix outdated sk_state value in hvs_release() 2017-12-05 15:07:37 -05:00
wimax License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
wireless lift handling of SIOCIW... out of dev_ioctl() 2018-01-24 19:13:45 -05:00
x25 treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-24 23:44:15 -05:00
compat.c net: compat: assert the size of cmsg copied in is as expected 2017-09-20 15:36:18 -07:00
Kconfig netfilter: don't allocate space for arp/bridge hooks unless needed 2018-01-08 18:01:11 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
socket.c kill kernel_sock_ioctl() 2018-01-24 19:13:45 -05:00
sysctl_net.c