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Brian Haley c91f6df2db sockopt: Change getsockopt() of SO_BINDTODEVICE to return an interface name 
Instead of having the getsockopt() of SO_BINDTODEVICE return an index, which
will then require another call like if_indextoname() to get the actual interface
name, have it return the name directly.

This also matches the existing man page description on socket(7) which mentions
the argument being an interface name.

If the value has not been set, zero is returned and optlen will be set to zero
to indicate there is no interface name present.

Added a seqlock to protect this code path, and dev_ifname(), from someone
changing the device name via dev_change_name().

v2: Added seqlock protection while copying device name.

v3: Fixed word wrap in patch.

Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2012-11-26 17:22:14 -05:00
..
9p The following changes since commit 4cbe5a555fa58a79b6ecbb6c531b8bab0650778d: 2012-10-12 09:59:23 +09:00
802 tokenring: delete all remaining driver support 2012-05-15 20:23:16 -04:00
8021q net: Allow the userns root to control vlans. 2012-11-18 20:33:00 -05:00
appletalk userns: Print out socket uids in a user namespace aware fashion. 2012-08-14 21:48:06 -07:00
atm atm: br2684: Fix excessive queue bloat 2012-11-26 17:13:56 -05:00
ax25 userns: Convert net/ax25 to use kuid_t where appropriate 2012-08-14 21:49:42 -07:00
batman-adv batman-adv: Use packing of 2 for all headers before an ethernet header 2012-11-21 12:35:47 +01:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-17 22:00:43 -05:00
bridge net: Enable a userns root rtnl calls that are safe for unprivilged users 2012-11-18 20:33:36 -05:00
caif caif: Remove redundant null check before kfree in cfctrl.c 2012-11-20 13:48:09 -05:00
can net: Push capable(CAP_NET_ADMIN) into the rtnl methods 2012-11-18 20:32:44 -05:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2012-10-29 08:49:25 -07:00
core sockopt: Change getsockopt() of SO_BINDTODEVICE to return an interface name 2012-11-26 17:22:14 -05:00
dcb net: Push capable(CAP_NET_ADMIN) into the rtnl methods 2012-11-18 20:32:44 -05:00
dccp tcp: better retrans tracking for defer-accept 2012-11-03 14:45:00 -04:00
decnet net: Push capable(CAP_NET_ADMIN) into the rtnl methods 2012-11-18 20:32:44 -05:00
dns_resolver Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
dsa dsa: Hide core config options; make drivers select what they need 2012-11-26 17:10:44 -05:00
ethernet ipx: move peII functions 2012-07-19 10:48:00 -07:00
ieee802154 net/ieee802154/6lowpan.c: Remove unecessary semicolon 2012-09-18 16:08:19 -04:00
ipv4 ipv4/ipmr and ipv6/ip6mr: Convert int mroute_do_<foo> to bool 2012-11-25 16:34:17 -05:00
ipv6 ipv4/ipmr and ipv6/ip6mr: Convert int mroute_do_<foo> to bool 2012-11-25 16:34:17 -05:00
ipx userns: Print out socket uids in a user namespace aware fashion. 2012-08-14 21:48:06 -07:00
irda Merge 3.7-rc1 into tty-linus 2012-10-14 22:41:27 -07:00
iucv net: remove skb_orphan_try() 2012-06-15 15:30:15 -07:00
key net: Allow userns root to control llc, netfilter, netlink, packet, and xfrm 2012-11-18 20:32:45 -05:00
l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-10 18:32:51 -05:00
lapb lapb: Neaten debugging 2012-05-17 18:45:20 -04:00
llc net: Allow userns root to control llc, netfilter, netlink, packet, and xfrm 2012-11-18 20:32:45 -05:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-25 12:49:17 -05:00
mac802154 mac802154: sparse warnings: make symbols static 2012-07-12 07:54:45 -07:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-25 12:49:17 -05:00
netlabel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-10-02 13:38:27 -07:00
netlink net: Allow userns root to control llc, netfilter, netlink, packet, and xfrm 2012-11-18 20:32:45 -05:00
netrom net: change return values from -EACCES to -EPERM 2012-09-21 13:58:08 -04:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-25 12:49:17 -05:00
openvswitch net/openvswitch/vport.c: Remove unecessary semicolon 2012-09-18 16:08:19 -04:00
packet net: Allow userns root to control llc, netfilter, netlink, packet, and xfrm 2012-11-18 20:32:45 -05:00
phonet net: Push capable(CAP_NET_ADMIN) into the rtnl methods 2012-11-18 20:32:44 -05:00
rds net: rds: use this_cpu_* per-cpu helper 2012-11-19 18:59:44 -05:00
rfkill Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-10-02 13:38:27 -07:00
rose net: Convert all sysctl registrations to register_net_sysctl 2012-04-20 21:22:30 -04:00
rxrpc Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
sched net: sched: enable CAN Identifier to be build into kernel 2012-11-25 16:06:06 -05:00
sctp sctp: send abort chunk when max_retrans exceeded 2012-11-20 15:50:37 -05:00
sunrpc SUNRPC: return proper errno from backchannel_rqst 2012-11-01 11:50:53 -04:00
tipc tipc: delete TIPC_ADVANCED Kconfig variable 2012-11-22 14:33:29 -05:00
unix net: Don't export sysctls to unprivileged users 2012-11-18 20:30:55 -05:00
wanrouter wanmain: comparing array with NULL 2012-07-24 13:55:21 -07:00
wimax net: cleanup unsigned to unsigned int 2012-04-15 12:44:40 -04:00
wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-17 22:00:43 -05:00
x25 net: Fix (nearly-)kernel-doc comments for various functions 2012-07-10 23:13:45 -07:00
xfrm Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2012-11-22 15:25:55 -05:00
Kconfig net: Add INET dependency on aes crypto for the sake of TCP fastopen. 2012-09-04 14:20:14 -04:00
Makefile ipv6: Preserve ipv6 functionality needed by NET 2012-11-18 02:34:00 -05:00
compat.c make get_file() return its argument 2012-09-26 21:10:25 -04:00
nonet.c
…
socket.c cgroup: net_cls: Rework update socket logic 2012-10-26 03:40:51 -04:00
sysctl_net.c user_ns: get rid of duplicate code in net_ctl_permissions 2012-11-18 20:32:45 -05:00