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Chris Perl 0f7a622ca6 rpc: xs_bind - do not bind when requesting a random ephemeral port 
When attempting to establish a local ephemeral endpoint for a TCP or UDP
socket, do not explicitly call bind, instead let it happen implicilty when the
socket is first used.

The main motivating factor for this change is when TCP runs out of unique
ephemeral ports (i.e.  cannot find any ephemeral ports which are not a part of
*any* TCP connection).  In this situation if you explicitly call bind, then the
call will fail with EADDRINUSE.  However, if you allow the allocation of an
ephemeral port to happen implicitly as part of connect (or other functions),
then ephemeral ports can be reused, so long as the combination of (local_ip,
local_port, remote_ip, remote_port) is unique for TCP sockets on the system.

This doesn't matter for UDP sockets, but it seemed easiest to treat TCP and UDP
sockets the same.

This can allow mount.nfs(8) to continue to function successfully, even in the
face of misbehaving applications which are creating a large number of TCP
connections.

Signed-off-by: Chris Perl <chris.perl@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
 		2014-09-10 12:47:00 -07:00
..
6lowpan 6lowpan: Allow 6LoWPAN to be modular 2014-08-07 11:44:18 -07:00
9p 9P: remove unnecessary break after return 2014-07-15 16:27:00 -07:00
802 net: set name_assign_type in alloc_netdev() 2014-07-15 16:12:48 -07:00
8021q net: Always untag vlan-tagged traffic on input. 2014-08-11 12:16:51 -07:00
appletalk Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-07-16 14:09:34 -07:00
atm lec: Use rtnl lock/unlock when updating MTU 2014-08-21 16:31:23 -07:00
ax25 net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
batman-adv batman-adv: Fix parameter order of hlist_add_behind 2014-08-16 19:19:08 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-08-06 09:38:14 -07:00
bridge net: Always untag vlan-tagged traffic on input. 2014-08-11 12:16:51 -07:00
caif caif: remove unnecessary break after goto 2014-07-15 16:27:01 -07:00
can can: add hash based access to single EFF frame filters 2014-05-19 09:38:24 +02:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2014-08-13 17:43:29 -06:00
core Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-08-13 18:27:40 -06:00
dcb dcbnl : Fix misleading dcb_app->priority explanation 2014-07-30 17:21:05 -07:00
dccp inet: move ipv6only in sock_common 2014-07-01 23:46:21 -07:00
decnet net: Split sk_no_check into sk_no_check_{rx,tx} 2014-05-23 16:28:53 -04:00
dns_resolver Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2014-08-06 08:06:39 -07:00
dsa net: set name_assign_type in alloc_netdev() 2014-07-15 16:12:48 -07:00
ethernet net: set name_assign_type in alloc_netdev() 2014-07-15 16:12:48 -07:00
hsr net/hsr: Remove left-over never-true conditional code. 2014-07-11 15:04:40 -07:00
ieee802154 inet: frags: use kmem_cache for inet_frag_queue 2014-08-02 15:31:31 -07:00
ipv4 tcp: fix ssthresh and undo for consecutive short FRTO episodes 2014-08-14 14:38:55 -07:00
ipv6 net: ipv6: fib: don't sleep inside atomic lock 2014-08-22 10:54:49 -07:00
ipx net: Split sk_no_check into sk_no_check_{rx,tx} 2014-05-23 16:28:53 -04:00
irda irda: Fix rd_frame control field initialization in irlap_send_rd_frame() 2014-08-13 20:05:52 -07:00
iucv af_iucv: avoid path quiesce of severed path in shutdown() 2014-07-21 20:21:40 -07:00
key af_key: remove unnecessary break after return 2014-07-15 16:27:00 -07:00
l2tp net: use inet6_iif instead of IP6CB()->iif 2014-07-31 22:37:06 -07:00
lapb
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llc
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mac80211 mac80211: fix channel switch for chanctx-based drivers 2014-08-22 14:45:49 -07:00
mac802154 net: set name_assign_type in alloc_netdev() 2014-07-15 16:12:48 -07:00
mpls gre: Call gso_make_checksum 2014-06-04 22:46:38 -07:00
netfilter netfilter: nf_tables: fix error return code 2014-08-08 16:47:29 +02:00
netlabel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-08-06 09:38:14 -07:00
netlink netlink: Annotate RCU locking for seq_file walker 2014-08-14 15:13:40 -07:00
netrom net: set name_assign_type in alloc_netdev() 2014-07-15 16:12:48 -07:00
nfc Merge tag 'master-2014-07-31' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next 2014-08-05 13:18:20 -07:00
openvswitch openvswitch: fix panic with multiple vlan headers 2014-08-22 11:24:04 -07:00
packet packet: handle too big packets for PACKET_V3 2014-08-21 16:44:28 -07:00
phonet net: set name_assign_type in alloc_netdev() 2014-07-15 16:12:48 -07:00
rds Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
rfkill Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2014-05-22 13:58:36 -04:00
rose net: set name_assign_type in alloc_netdev() 2014-07-15 16:12:48 -07:00
rxrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-08-06 09:38:14 -07:00
sched cbq: now_rt removal 2014-08-19 10:58:44 -07:00
sctp net: sctp: fix suboptimal edge-case on non-active active/retrans path selection 2014-08-22 11:31:30 -07:00
sunrpc rpc: xs_bind - do not bind when requesting a random ephemeral port 2014-09-10 12:47:00 -07:00
tipc tipc: Fix build. 2014-08-19 11:16:38 -07:00
unix Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
vmw_vsock vsock: Make transport the proto owner 2014-05-05 13:13:50 -04:00
wimax
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wireless Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2014-07-25 10:22:36 -04:00
x25 net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
xfrm list: fix order of arguments for hlist_add_after(_rcu) 2014-08-06 18:01:24 -07:00
Kconfig 6lowpan: introduce new net/6lowpan directory 2014-07-12 01:53:30 +02:00
Makefile 6lowpan: introduce new net/6lowpan directory 2014-07-12 01:53:30 +02:00
compat.c net: sendmsg: fix NULL pointer dereference 2014-07-29 12:20:22 -07:00
nonet.c
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socket.c net-timestamp: sock_tx_timestamp() fix 2014-08-06 12:38:07 -07:00
sysctl_net.c
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