kernel_optimize_test/net
Chuck Lever ba9b584c1d SUNRPC: Introduce rpc_clone_client_set_auth()
An ULP is supposed to be able to replace a GSS rpc_auth object with
another GSS rpc_auth object using rpcauth_create().  However,
rpcauth_create() in 3.5 reliably fails with -EEXIST in this case.
This is because when gss_create() attempts to create the upcall pipes,
sometimes they are already there.  For example if a pipe FS mount
event occurs, or a previous GSS flavor was in use for this rpc_clnt.

It turns out that's not the only problem here.  While working on a
fix for the above problem, we noticed that replacing an rpc_clnt's
rpc_auth is not safe, since dereferencing the cl_auth field is not
protected in any way.

So we're deprecating the ability of rpcauth_create() to switch an
rpc_clnt's security flavor during normal operation.  Instead, let's
add a fresh API that clones an rpc_clnt and gives the clone a new
flavor before it's used.

This makes immediate use of the new __rpc_clone_client() helper.

This can be used in a similar fashion to rpcauth_create() when a
client is hunting for the correct security flavor.  Instead of
replacing an rpc_clnt's security flavor in a loop, the ULP replaces
the whole rpc_clnt.

To fix the -EEXIST problem, any ULP logic that relies on replacing
an rpc_clnt's rpc_auth with rpcauth_create() must be changed to use
this API instead.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-10-01 15:33:33 -07:00
..
9p net: Fix (nearly-)kernel-doc comments for various functions 2012-07-10 23:13:45 -07:00
802
8021q vlan: clean up vlan_dev_hard_start_xmit() 2012-08-14 14:33:32 -07:00
appletalk net: Fix (nearly-)kernel-doc comments for various functions 2012-07-10 23:13:45 -07:00
atm atm: fix info leak via getsockname() 2012-08-15 21:36:30 -07:00
ax25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-07-19 11:17:30 -07:00
batman-adv batman-adv: Fix mem leak in the batadv_tt_local_event() function 2012-08-08 16:04:04 -07:00
bluetooth Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2012-09-07 14:38:50 -04:00
bridge netfilter: log: Fix log-level processing 2012-09-12 17:17:35 +02:00
caif caif: move the dereference below the NULL test 2012-09-10 16:13:31 -04:00
can can: gw: Remove pointless casts 2012-07-10 22:36:17 +02:00
ceph libceph: avoid truncation due to racing banners 2012-08-21 15:55:27 -07:00
core pktgen: fix crash with vlan and packet size less than 46 2012-09-13 17:10:00 -04:00
dcb net: Fix non-kernel-doc comments with kernel-doc start marker 2012-07-10 23:13:45 -07:00
dccp dccp: fix info leak via getsockopt(DCCP_SOCKOPT_CCID_TX_INFO) 2012-08-15 21:36:31 -07:00
decnet ipv4: Restore old dst_free() behavior. 2012-07-31 14:41:38 -07:00
dns_resolver
dsa
ethernet ipx: move peII functions 2012-07-19 10:48:00 -07:00
ieee802154 6lowpan: Change byte order when storing/accessing to len field 2012-07-16 22:52:02 -07:00
ipv4 udp: increment UDP_MIB_INERRORS if copy failed 2012-09-07 12:56:00 -04:00
ipv6 udp: increment UDP_MIB_INERRORS if copy failed 2012-09-07 12:56:00 -04:00
ipx ipx: move peII functions 2012-07-19 10:48:00 -07:00
irda irda: Fix typo in irda 2012-07-16 23:23:52 -07:00
iucv
key
l2tp l2tp: fix a typo in l2tp_eth_dev_recv() 2012-09-04 15:54:55 -04:00
lapb
llc llc: fix info leak via getsockname() 2012-08-15 21:36:31 -07:00
mac80211 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 2012-09-05 14:48:15 -04:00
mac802154 mac802154: sparse warnings: make symbols static 2012-07-12 07:54:45 -07:00
netfilter netfilter: log: Fix log-level processing 2012-09-12 17:17:35 +02:00
netlabel
netlink netlink: fix possible spoofing from non-root processes 2012-08-24 13:36:09 -04:00
netrom netrom: copy_datagram_iovec can fail 2012-09-04 12:57:35 -04:00
nfc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2012-07-20 12:30:48 -04:00
openvswitch openvswitch: Fix FLOW_BUFSIZE definition. 2012-09-03 19:06:27 -07:00
packet af_packet: match_fanout_group() can be static 2012-08-23 09:27:12 -07:00
phonet
rds rds: set correct msg_namelen 2012-07-23 01:01:44 -07:00
rfkill
rose
rxrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-07-10 23:56:33 -07:00
sched net_sched: gred: actually perform idling in WRED mode 2012-09-13 16:10:13 -04:00
sctp sctp: Don't charge for data in sndbuf again when transmitting packet 2012-09-03 13:24:13 -04:00
sunrpc SUNRPC: Introduce rpc_clone_client_set_auth() 2012-10-01 15:33:33 -07:00
tipc tipc: remove print_buf and deprecated log buffer code 2012-07-13 19:34:43 -04:00
unix af_netlink: force credentials passing [CVE-2012-3520] 2012-08-21 14:53:01 -07:00
wanrouter wanmain: comparing array with NULL 2012-07-24 13:55:21 -07:00
wimax
wireless Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 2012-09-05 14:48:15 -04:00
x25 net: Fix (nearly-)kernel-doc comments for various functions 2012-07-10 23:13:45 -07:00
xfrm xfrm: Workaround incompatibility of ESN and async crypto 2012-09-04 14:09:45 -04:00
compat.c net: Fix references to out-of-scope variables in put_cmsg_compat() 2012-07-22 17:50:49 -07:00
Kconfig
Makefile
nonet.c
socket.c Fix order of arguments to compat_put_time[spec|val] 2012-09-05 18:34:13 -07:00
sysctl_net.c