Pablo Neira Ayuso 1ce85fe402 netlink: change nlmsg_notify() return value logic ... This patch changes the return value of nlmsg_notify() as follows: If NETLINK_BROADCAST_ERROR is set by any of the listeners and an error in the delivery happened, return the broadcast error; else if there are no listeners apart from the socket that requested a change with the echo flag, return the result of the unicast notification. Thus, with this patch, the unicast notification is handled in the same way of a broadcast listener that has set the NETLINK_BROADCAST_ERROR socket flag. This patch is useful in case that the caller of nlmsg_notify() wants to know the result of the delivery of a netlink notification (including the broadcast delivery) and take any action in case that the delivery failed. For example, ctnetlink can drop packets if the event delivery failed to provide reliable logging and state-synchronization at the cost of dropping packets. This patch also modifies the rtnetlink code to ignore the return value of rtnl_notify() in all callers. The function rtnl_notify() (before this patch) returned the error of the unicast notification which makes rtnl_set_sk_err() reports errors to all listeners. This is not of any help since the origin of the change (the socket that requested the echoing) notices the ENOBUFS error if the notification fails and should resync itself. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>		2009-02-24 23:18:28 -08:00
..
netfilter	net: replace uses of __constant_{endian}	2009-02-01 00:45:17 -08:00
af_inet.c	gro: Optimise IPv4 packet reception	2009-02-08 20:22:19 -08:00
ah4.c	netns xfrm: AH/ESP in netns!	2008-11-25 17:59:27 -08:00
arp.c	net: replace uses of __constant_{endian}	2009-02-01 00:45:17 -08:00
cipso_ipv4.c	cipso: Fix documentation comment	2009-02-23 10:05:54 +11:00
datagram.c	mib: add net to IP_INC_STATS_BH	2008-07-16 20:20:11 -07:00
devinet.c	netlink: change nlmsg_notify() return value logic	2009-02-24 23:18:28 -08:00
esp4.c	netns xfrm: AH/ESP in netns!	2008-11-25 17:59:27 -08:00
fib_frontend.c	ip: add loose reverse path filtering	2009-02-22 19:54:45 -08:00
fib_hash.c	net: clean up net/ipv4/fib_frontend.c fib_hash.c ip_gre.c	2008-11-03 00:25:16 -08:00
fib_lookup.h	[IPV4] FIB_HASH: Reduce memory needs and speedup lookups	2008-01-28 15:02:46 -08:00
fib_rules.c	net: add fib_rules_ops to flush_cache method	2008-07-05 19:01:28 -07:00
fib_semantics.c	netlink: change nlmsg_notify() return value logic	2009-02-24 23:18:28 -08:00
fib_trie.c	net: replace NIPQUAD() in net/ipv4/ net/ipv6/	2008-10-31 00:53:57 -07:00
icmp.c	netns: Fix icmp shutdown.	2009-02-22 19:54:48 -08:00
igmp.c	netns: igmp: make /proc/net/{igmp,mcfilter} per netns	2008-12-25 16:42:51 -08:00
inet_connection_sock.c	net: move bsockets outside of read only beginning of struct inet_hashinfo	2009-02-01 12:31:33 -08:00
inet_diag.c	net: Convert TCP/DCCP listening hash tables to use RCU	2008-11-23 17:22:55 -08:00
inet_fragment.c	net: convert BUG_TRAP to generic WARN_ON	2008-07-25 21:43:18 -07:00
inet_hashtables.c	net: move bsockets outside of read only beginning of struct inet_hashinfo	2009-02-01 12:31:33 -08:00
inet_lro.c	include/net net/ - csum_partial - remove unnecessary casts	2008-11-19 15:44:53 -08:00
inet_timewait_sock.c	net: convert TCP/DCCP ehash rwlocks to spinlocks	2008-11-20 20:39:09 -08:00
inetpeer.c	net: clean up net/ipv4/ah4.c esp4.c fib_semantics.c inet_connection_sock.c inetpeer.c ip_output.c	2008-11-03 00:23:42 -08:00
ip_forward.c	net: reduce structures when XFRM=n	2008-10-28 13:24:06 -07:00
ip_fragment.c	net: '&' redux	2008-11-03 18:21:05 -08:00
ip_gre.c	gre: optimize hash lookup	2009-01-26 20:56:10 -08:00
ip_input.c	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	2008-11-18 23:38:23 -08:00
ip_options.c	cipso: Add support for native local labeling and fixup mapping names	2008-10-10 10:16:34 -04:00
ip_output.c	ip: support for TX timestamps on UDP and RAW sockets	2009-02-15 22:43:38 -08:00
ip_sockglue.c	net: ip_sockglue.c add static, annotate ports' endianness	2008-11-20 01:54:27 -08:00
ipcomp.c	netns xfrm: state lookup in netns	2008-11-25 17:30:50 -08:00
ipconfig.c	net: replace uses of __constant_{endian}	2009-02-01 00:45:17 -08:00
ipip.c	ip: ipip compile warning	2009-02-22 19:54:45 -08:00
ipmr.c	ipmr: use goto to common label instead of opencoding	2009-02-06 23:46:51 -08:00
Kconfig	Doc: Refer to ip-sysctl.txt for strict vs. loose rp_filter mode	2009-02-24 03:47:42 -08:00
Makefile	IPVS: Move IPVS to net/netfilter/ipvs	2008-10-07 08:38:24 +11:00
netfilter.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6	2008-11-28 02:19:15 -08:00
proc.c	net: replace commatas with semicolons	2009-02-16 00:08:56 -08:00
protocol.c	net: remove CVS keywords	2008-06-11 21:00:38 -07:00
raw.c	ip: support for TX timestamps on UDP and RAW sockets	2009-02-15 22:43:38 -08:00
route.c	net: replace uses of __constant_{endian}	2009-02-01 00:45:17 -08:00
syncookies.c	tcp: Port redirection support for TCP	2008-10-01 07:46:49 -07:00
sysctl_net_ipv4.c	net: '&' redux	2008-11-03 18:21:05 -08:00
tcp_bic.c	[TCP]: BIC web page link is corrected.	2008-02-28 22:14:32 -08:00
tcp_cong.c	net: Remove CONFIG_KMOD from net/ (towards removing CONFIG_KMOD entirely)	2008-10-16 15:24:51 -07:00
tcp_cubic.c	[TCP] CUBIC v2.3	2008-11-02 00:28:10 -07:00
tcp_diag.c	net: inet_diag_handler structs can be const	2008-11-19 15:43:27 -08:00
tcp_highspeed.c	[TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid	2008-01-28 14:55:41 -08:00
tcp_htcp.c	tcp_htcp: last_cong bug fix	2008-11-12 01:41:09 -08:00
tcp_hybla.c	tcp: Fix tcp_hybla zero congestion window growth with small rho and large cwnd.	2008-10-07 15:58:17 -07:00
tcp_illinois.c	[TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid	2008-01-28 14:55:41 -08:00
tcp_input.c	net_dma: convert to dma_find_channel	2009-01-06 11:38:15 -07:00
tcp_ipv4.c	tcp: Like icmp use register_pernet_subsys	2009-02-22 19:54:49 -08:00
tcp_lp.c	[TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid	2008-01-28 14:55:41 -08:00
tcp_minisocks.c	net: clean up net/ipv4/ipip.c raw.c tcp.c tcp_minisocks.c tcp_yeah.c xfrm4_policy.c	2008-11-03 00:24:34 -08:00
tcp_output.c	Merge branch 'master' of /home/davem/src/GIT/linux-2.6/	2009-02-24 03:50:29 -08:00
tcp_probe.c	net: replace NIPQUAD() in net/ipv4/ net/ipv6/	2008-10-31 00:53:57 -07:00
tcp_scalable.c	[TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid	2008-01-28 14:55:41 -08:00
tcp_timer.c	tcp: Stop scaring users with "treason uncloaked!"	2008-12-18 22:27:42 -08:00
tcp_vegas.c	tcp: tcp_vegas cong avoid fix	2008-12-09 00:13:04 -08:00
tcp_vegas.h	[TCP]: congestion control API pass RTT in microseconds	2007-07-31 02:27:57 -07:00
tcp_veno.c	net: fix returning void-valued expression warnings	2008-05-01 02:47:38 -07:00
tcp_westwood.c	[TCP]: congestion control API pass RTT in microseconds	2007-07-31 02:27:57 -07:00
tcp_yeah.c	net: clean up net/ipv4/ipip.c raw.c tcp.c tcp_minisocks.c tcp_yeah.c xfrm4_policy.c	2008-11-03 00:24:34 -08:00
tcp.c	gro: Optimise TCP packet reception	2009-02-08 20:22:19 -08:00
tunnel4.c	[IPV4] TUNNEL4: Fix incoming packet length check for inter-protocol tunnel.	2008-06-05 04:02:33 +09:00
udp_impl.h	udp: introduce struct udp_table and multiple spinlocks	2008-10-29 01:41:45 -07:00
udp.c	ip: support for TX timestamps on UDP and RAW sockets	2009-02-15 22:43:38 -08:00
udplite.c	udp: RCU handling for Unicast packets.	2008-10-29 02:11:14 -07:00
xfrm4_input.c	ipsec: Remove useless ret variable	2008-12-26 01:31:18 -08:00
xfrm4_mode_beet.c	ipsec: Interfamily IPSec BEET	2008-08-06 02:39:30 -07:00
xfrm4_mode_transport.c	[IPSEC]: Use IPv6 calling convention as the convention for x->mode->output	2007-10-10 16:55:54 -07:00
xfrm4_mode_tunnel.c	xfrm: fix fragmentation for ipv4 xfrm tunnel	2008-06-17 16:38:23 -07:00
xfrm4_output.c	[IPSEC]: Fix inter address family IPsec tunnel handling.	2008-03-24 14:51:51 -07:00
xfrm4_policy.c	net: replace uses of __constant_{endian}	2009-02-01 00:45:17 -08:00
xfrm4_state.c	xfrm: remove useless forward declarations	2008-11-25 01:05:54 -08:00
xfrm4_tunnel.c	[IPCOMP]: Fix reception of incompressible packets	2008-01-31 19:27:24 -08:00