Hangbin Liu e9919a24d3 fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied ... With commit 153380ec4b ("fib_rules: Added NLM_F_EXCL support to fib_nl_newrule") we now able to check if a rule already exists. But this only works with iproute2. For other tools like libnl, NetworkManager, it still could add duplicate rules with only NLM_F_CREATE flag, like [localhost ~ ]# ip rule 0: from all lookup local 32766: from all lookup main 32767: from all lookup default 100000: from 192.168.7.5 lookup 5 100000: from 192.168.7.5 lookup 5 As it doesn't make sense to create two duplicate rules, let's just return 0 if the rule exists. Fixes: 153380ec4b ("fib_rules: Added NLM_F_EXCL support to fib_nl_newrule") Reported-by: Thomas Haller <thaller@redhat.com> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2019-05-08 09:32:10 -07:00
..
bpf_sk_storage.c	bpf: Use PTR_ERR_OR_ZERO in bpf_fd_sk_storage_update_elem()	2019-05-04 23:20:58 -07:00
datagram.c	datagram: remove rendundant 'peeked' argument	2019-04-08 09:51:54 -07:00
datagram.h	net/core: Allow the compiler to verify declaration and definition consistency	2019-03-27 13:49:44 -07:00
dev_addr_lists.c
dev_ioctl.c	net/core: Document all dev_ioctl() arguments	2019-03-27 13:49:43 -07:00
dev.c	net: use indirect calls helpers for ptype hook	2019-05-05 10:38:04 -07:00
devlink.c	devlink: Change devlink health locking mechanism	2019-05-01 11:07:03 -04:00
drop_monitor.c	genetlink: optionally validate strictly/dumps	2019-04-27 17:07:22 -04:00
dst_cache.c
dst.c	net: dst: remove gc leftovers	2019-03-21 13:39:25 -07:00
ethtool.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2019-04-05 14:14:19 -07:00
failover.c	failover: allow name change on IFF_UP slave interfaces	2019-04-10 22:12:26 -07:00
fib_notifier.c
fib_rules.c	fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied	2019-05-08 09:32:10 -07:00
filter.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2019-04-28 08:42:41 -04:00
flow_dissector.c	bpf: support BPF_PROG_QUERY for BPF_FLOW_DISSECTOR attach_type	2019-04-25 23:49:06 +02:00
flow_offload.c
gen_estimator.c
gen_stats.c	Revert: "net: sched: put back q.qlen into a single location"	2019-04-10 12:20:46 -07:00
gro_cells.c	gro_cells: make sure device is up in gro_cells_receive()	2019-03-10 11:07:14 -07:00
hwbm.c
link_watch.c
lwt_bpf.c	netlink: make validation more configurable for future strictness	2019-04-27 17:07:21 -04:00
lwtunnel.c	netlink: make nla_nest_start() add NLA_F_NESTED flag	2019-04-27 17:03:44 -04:00
Makefile	bpf: Introduce bpf sk local storage	2019-04-27 09:07:04 -07:00
neighbour.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2019-05-07 17:22:09 -07:00
net_namespace.c	netlink: make validation more configurable for future strictness	2019-04-27 17:07:21 -04:00
net-procfs.c	treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively	2019-04-09 14:19:06 +02:00
net-sysfs.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2019-05-07 22:03:58 -07:00
net-sysfs.h
net-traces.c
netclassid_cgroup.c
netevent.c
netpoll.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2019-05-07 22:03:58 -07:00
netprio_cgroup.c	cgroup: net: remove left over MODULE_LICENSE tag	2019-04-22 21:50:54 -07:00
page_pool.c
pktgen.c	xfrm: remove output indirection from xfrm_mode	2019-04-08 09:14:28 +02:00
ptp_classifier.c	net/core: work around section mismatch warning for ptp_classifier	2019-04-16 20:46:17 -07:00
request_sock.c
rtnetlink.c	netlink: make validation more configurable for future strictness	2019-04-27 17:07:21 -04:00
scm.c
secure_seq.c
skbuff.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2019-04-22 21:35:55 -07:00
skmsg.c	bpf: Stop the psock parser before canceling its work	2019-03-07 15:16:20 +01:00
sock_diag.c
sock_map.c
sock_reuseport.c	net/core: Document reuseport_add_sock() bind_inany argument	2019-03-27 13:49:43 -07:00
sock.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2019-04-28 08:42:41 -04:00
stream.c
sysctl_net_core.c	net: convert rps_needed and rfs_needed to new static branch api	2019-03-23 21:57:38 -04:00
timestamping.c
tso.c
utils.c
xdp.c