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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>		16 years ago
..
Makefile	net: Add SKB DMA mapping helper functions.	17 years ago
datagram.c	net: sk_free_datagram() should use sk_mem_reclaim_partial()	16 years ago
dev.c	netns: Remove net_alive	16 years ago
dev_mcast.c	net: Rationalise email address: Network Specific Parts	17 years ago
dst.c	net: speedup dst_release()	16 years ago
ethtool.c	ethtool: Add RX pkt classification interface	16 years ago
fib_rules.c	netlink: change nlmsg_notify() return value logic	16 years ago
filter.c	filter: add SKF_AD_NLATTR_NEST to look for nested attributes	16 years ago
flow.c	netns xfrm: lookup in netns	16 years ago
gen_estimator.c	pkt_sched: gen_estimator: Optimize gen_estimator_active()	16 years ago
gen_stats.c	[NET_SCHED]: Convert packet schedulers from rtnetlink to new netlink API	17 years ago
iovec.c	net: Use standard structures for generic socket address structures.	17 years ago
kmap_skb.h	…
link_watch.c	Revert "net: Fix for initial link state in 2.6.28"	16 years ago
neighbour.c	netlink: change nlmsg_notify() return value logic	16 years ago
net-sysfs.c	netns: filter out uevent not belonging to init_net	16 years ago
net-sysfs.h	netns: Fix device renaming for sysfs	17 years ago
net_namespace.c	Merge branch 'master' of /home/davem/src/GIT/linux-2.6/	16 years ago
netevent.c	[NET]: net/core/netevent.c should #include <net/netevent.h>	18 years ago
netpoll.c	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	16 years ago
pktgen.c	netns xfrm: finding states in netns	16 years ago
request_sock.c	net: convert BUG_TRAP to generic WARN_ON	17 years ago
rtnetlink.c	netlink: change nlmsg_notify() return value logic	16 years ago
scm.c	Merge branch 'master' into next	16 years ago
skb_dma_map.c	net: Fix off-by-one in skb_dma_map	17 years ago
skbuff.c	Merge branch 'master' of /home/davem/src/GIT/linux-2.6/	16 years ago
sock.c	Merge branch 'master' of /home/davem/src/GIT/linux-2.6/	16 years ago
stream.c	net: Rationalise email address: Network Specific Parts	17 years ago
sysctl_net_core.c	netns xfrm: per-netns sysctls	16 years ago
user_dma.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	17 years ago
utils.c	printk ratelimiting rewrite	17 years ago