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  1. 21 2月, 2014 1 次提交
  3. 17 2月, 2014 1 次提交
    • N
      ipsec: add support of limited SA dump · d3623099
      由 Nicolas Dichtel 提交于 
      The goal of this patch is to allow userland to dump only a part of SA by
specifying a filter during the dump.
The kernel is in charge to filter SA, this avoids to generate useless netlink
traffic (it save also some cpu cycles). This is particularly useful when there
is a big number of SA set on the system.

Note that I removed the union in struct xfrm_state_walk to fix a problem on arm.
struct netlink_callback->args is defined as a array of 6 long and the first long
is used in xfrm code to flag the cb as initialized. Hence, we must have:
sizeof(struct xfrm_state_walk) <= sizeof(long) * 5.
With the union, it was false on arm (sizeof(struct xfrm_state_walk) was
sizeof(long) * 7), due to the padding.
In fact, whatever the arch is, this union seems useless, there will be always
padding after it. Removing it will not increase the size of this struct (and
reduce it on arm).
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
      d3623099
  5. 13 2月, 2014 1 次提交
  7. 15 1月, 2014 1 次提交
  9. 14 1月, 2014 1 次提交
  11. 03 1月, 2014 2 次提交
    • F
      {pktgen, xfrm} Introduce xfrm_state_lookup_byspi for pktgen · c454997e
      由 Fan Du 提交于 
      Introduce xfrm_state_lookup_byspi to find user specified by custom
from "pgset spi xxx". Using this scheme, any flow regardless its
saddr/daddr could be transform by SA specified with configurable
spi.
Signed-off-by: NFan Du <fan.du@windriver.com>
Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
      c454997e
    • F
      {pktgen, xfrm} Correct xfrm_state_lock usage in xfrm_stateonly_find · 4ae770bf
      由 Fan Du 提交于 
      Acquiring xfrm_state_lock in process context is expected to turn BH off,
as this lock is also used in BH context, namely xfrm state timer handler.
Otherwise it surprises LOCKDEP with below messages.

[   81.422781] pktgen: Packet Generator for packet performance testing. Version: 2.74
[   81.725194]
[   81.725211] =========================================================
[   81.725212] [ INFO: possible irq lock inversion dependency detected ]
[   81.725215] 3.13.0-rc2+ #92 Not tainted
[   81.725216] ---------------------------------------------------------
[   81.725218] kpktgend_0/2780 just changed the state of lock:
[   81.725220]  (xfrm_state_lock){+.+...}, at: [<ffffffff816dd751>] xfrm_stateonly_find+0x41/0x1f0
[   81.725231] but this lock was taken by another, SOFTIRQ-safe lock in the past:
[   81.725232]  (&(&x->lock)->rlock){+.-...}
[   81.725232]
[   81.725232] and interrupts could create inverse lock ordering between them.
[   81.725232]
[   81.725235]
[   81.725235] other info that might help us debug this:
[   81.725237]  Possible interrupt unsafe locking scenario:
[   81.725237]
[   81.725238]        CPU0                    CPU1
[   81.725240]        ----                    ----
[   81.725241]   lock(xfrm_state_lock);
[   81.725243]                                local_irq_disable();
[   81.725244]                                lock(&(&x->lock)->rlock);
[   81.725246]                                lock(xfrm_state_lock);
[   81.725248]   <Interrupt>
[   81.725249]     lock(&(&x->lock)->rlock);
[   81.725251]
[   81.725251]  *** DEADLOCK ***
[   81.725251]
[   81.725254] no locks held by kpktgend_0/2780.
[   81.725255]
[   81.725255] the shortest dependencies between 2nd lock and 1st lock:
[   81.725269]  -> (&(&x->lock)->rlock){+.-...} ops: 8 {
[   81.725274]     HARDIRQ-ON-W at:
[   81.725276]                       [<ffffffff8109a64b>] __lock_acquire+0x65b/0x1d70
[   81.725282]                       [<ffffffff8109c3c7>] lock_acquire+0x97/0x130
[   81.725284]                       [<ffffffff81774af6>] _raw_spin_lock+0x36/0x70
[   81.725289]                       [<ffffffff816dc3a3>] xfrm_timer_handler+0x43/0x290
[   81.725292]                       [<ffffffff81059437>] __tasklet_hrtimer_trampoline+0x17/0x40
[   81.725300]                       [<ffffffff8105a1b7>] tasklet_hi_action+0xd7/0xf0
[   81.725303]                       [<ffffffff81059ac6>] __do_softirq+0xe6/0x2d0
[   81.725305]                       [<ffffffff8105a026>] irq_exit+0x96/0xc0
[   81.725308]                       [<ffffffff8177fd0a>] smp_apic_timer_interrupt+0x4a/0x60
[   81.725313]                       [<ffffffff8177e96f>] apic_timer_interrupt+0x6f/0x80
[   81.725316]                       [<ffffffff8100b7c6>] arch_cpu_idle+0x26/0x30
[   81.725329]                       [<ffffffff810ace28>] cpu_startup_entry+0x88/0x2b0
[   81.725333]                       [<ffffffff8102e5b0>] start_secondary+0x190/0x1f0
[   81.725338]     IN-SOFTIRQ-W at:
[   81.725340]                       [<ffffffff8109a61d>] __lock_acquire+0x62d/0x1d70
[   81.725342]                       [<ffffffff8109c3c7>] lock_acquire+0x97/0x130
[   81.725344]                       [<ffffffff81774af6>] _raw_spin_lock+0x36/0x70
[   81.725347]                       [<ffffffff816dc3a3>] xfrm_timer_handler+0x43/0x290
[   81.725349]                       [<ffffffff81059437>] __tasklet_hrtimer_trampoline+0x17/0x40
[   81.725352]                       [<ffffffff8105a1b7>] tasklet_hi_action+0xd7/0xf0
[   81.725355]                       [<ffffffff81059ac6>] __do_softirq+0xe6/0x2d0
[   81.725358]                       [<ffffffff8105a026>] irq_exit+0x96/0xc0
[   81.725360]                       [<ffffffff8177fd0a>] smp_apic_timer_interrupt+0x4a/0x60
[   81.725363]                       [<ffffffff8177e96f>] apic_timer_interrupt+0x6f/0x80
[   81.725365]                       [<ffffffff8100b7c6>] arch_cpu_idle+0x26/0x30
[   81.725368]                       [<ffffffff810ace28>] cpu_startup_entry+0x88/0x2b0
[   81.725370]                       [<ffffffff8102e5b0>] start_secondary+0x190/0x1f0
[   81.725373]     INITIAL USE at:
[   81.725375]                      [<ffffffff8109a31a>] __lock_acquire+0x32a/0x1d70
[   81.725385]                      [<ffffffff8109c3c7>] lock_acquire+0x97/0x130
[   81.725388]                      [<ffffffff81774af6>] _raw_spin_lock+0x36/0x70
[   81.725390]                      [<ffffffff816dc3a3>] xfrm_timer_handler+0x43/0x290
[   81.725394]                      [<ffffffff81059437>] __tasklet_hrtimer_trampoline+0x17/0x40
[   81.725398]                      [<ffffffff8105a1b7>] tasklet_hi_action+0xd7/0xf0
[   81.725401]                      [<ffffffff81059ac6>] __do_softirq+0xe6/0x2d0
[   81.725404]                      [<ffffffff8105a026>] irq_exit+0x96/0xc0
[   81.725407]                      [<ffffffff8177fd0a>] smp_apic_timer_interrupt+0x4a/0x60
[   81.725409]                      [<ffffffff8177e96f>] apic_timer_interrupt+0x6f/0x80
[   81.725412]                      [<ffffffff8100b7c6>] arch_cpu_idle+0x26/0x30
[   81.725415]                      [<ffffffff810ace28>] cpu_startup_entry+0x88/0x2b0
[   81.725417]                      [<ffffffff8102e5b0>] start_secondary+0x190/0x1f0
[   81.725420]   }
[   81.725421]   ... key      at: [<ffffffff8295b9c8>] __key.46349+0x0/0x8
[   81.725445]   ... acquired at:
[   81.725446]    [<ffffffff8109c3c7>] lock_acquire+0x97/0x130
[   81.725449]    [<ffffffff81774af6>] _raw_spin_lock+0x36/0x70
[   81.725452]    [<ffffffff816dc057>] __xfrm_state_delete+0x37/0x140
[   81.725454]    [<ffffffff816dc18c>] xfrm_state_delete+0x2c/0x50
[   81.725456]    [<ffffffff816dc277>] xfrm_state_flush+0xc7/0x1b0
[   81.725458]    [<ffffffffa005f6cc>] pfkey_flush+0x7c/0x100 [af_key]
[   81.725465]    [<ffffffffa005efb7>] pfkey_process+0x1c7/0x1f0 [af_key]
[   81.725468]    [<ffffffffa005f139>] pfkey_sendmsg+0x159/0x260 [af_key]
[   81.725471]    [<ffffffff8162c16f>] sock_sendmsg+0xaf/0xc0
[   81.725476]    [<ffffffff8162c99c>] SYSC_sendto+0xfc/0x130
[   81.725479]    [<ffffffff8162cf3e>] SyS_sendto+0xe/0x10
[   81.725482]    [<ffffffff8177dd12>] system_call_fastpath+0x16/0x1b
[   81.725484]
[   81.725486] -> (xfrm_state_lock){+.+...} ops: 11 {
[   81.725490]    HARDIRQ-ON-W at:
[   81.725493]                     [<ffffffff8109a64b>] __lock_acquire+0x65b/0x1d70
[   81.725504]                     [<ffffffff8109c3c7>] lock_acquire+0x97/0x130
[   81.725507]                     [<ffffffff81774e4b>] _raw_spin_lock_bh+0x3b/0x70
[   81.725510]                     [<ffffffff816dc1df>] xfrm_state_flush+0x2f/0x1b0
[   81.725513]                     [<ffffffffa005f6cc>] pfkey_flush+0x7c/0x100 [af_key]
[   81.725516]                     [<ffffffffa005efb7>] pfkey_process+0x1c7/0x1f0 [af_key]
[   81.725519]                     [<ffffffffa005f139>] pfkey_sendmsg+0x159/0x260 [af_key]
[   81.725522]                     [<ffffffff8162c16f>] sock_sendmsg+0xaf/0xc0
[   81.725525]                     [<ffffffff8162c99c>] SYSC_sendto+0xfc/0x130
[   81.725527]                     [<ffffffff8162cf3e>] SyS_sendto+0xe/0x10
[   81.725530]                     [<ffffffff8177dd12>] system_call_fastpath+0x16/0x1b
[   81.725533]    SOFTIRQ-ON-W at:
[   81.725534]                     [<ffffffff8109a67a>] __lock_acquire+0x68a/0x1d70
[   81.725537]                     [<ffffffff8109c3c7>] lock_acquire+0x97/0x130
[   81.725539]                     [<ffffffff81774af6>] _raw_spin_lock+0x36/0x70
[   81.725541]                     [<ffffffff816dd751>] xfrm_stateonly_find+0x41/0x1f0
[   81.725544]                     [<ffffffffa008af03>] mod_cur_headers+0x793/0x7f0 [pktgen]
[   81.725547]                     [<ffffffffa008bca2>] pktgen_thread_worker+0xd42/0x1880 [pktgen]
[   81.725550]                     [<ffffffff81078f84>] kthread+0xe4/0x100
[   81.725555]                     [<ffffffff8177dc6c>] ret_from_fork+0x7c/0xb0
[   81.725565]    INITIAL USE at:
[   81.725567]                    [<ffffffff8109a31a>] __lock_acquire+0x32a/0x1d70
[   81.725569]                    [<ffffffff8109c3c7>] lock_acquire+0x97/0x130
[   81.725572]                    [<ffffffff81774e4b>] _raw_spin_lock_bh+0x3b/0x70
[   81.725574]                    [<ffffffff816dc1df>] xfrm_state_flush+0x2f/0x1b0
[   81.725576]                    [<ffffffffa005f6cc>] pfkey_flush+0x7c/0x100 [af_key]
[   81.725580]                    [<ffffffffa005efb7>] pfkey_process+0x1c7/0x1f0 [af_key]
[   81.725583]                    [<ffffffffa005f139>] pfkey_sendmsg+0x159/0x260 [af_key]
[   81.725586]                    [<ffffffff8162c16f>] sock_sendmsg+0xaf/0xc0
[   81.725589]                    [<ffffffff8162c99c>] SYSC_sendto+0xfc/0x130
[   81.725594]                    [<ffffffff8162cf3e>] SyS_sendto+0xe/0x10
[   81.725597]                    [<ffffffff8177dd12>] system_call_fastpath+0x16/0x1b
[   81.725599]  }
[   81.725600]  ... key      at: [<ffffffff81cadef8>] xfrm_state_lock+0x18/0x50
[   81.725606]  ... acquired at:
[   81.725607]    [<ffffffff810995c0>] check_usage_backwards+0x110/0x150
[   81.725609]    [<ffffffff81099e96>] mark_lock+0x196/0x2f0
[   81.725611]    [<ffffffff8109a67a>] __lock_acquire+0x68a/0x1d70
[   81.725614]    [<ffffffff8109c3c7>] lock_acquire+0x97/0x130
[   81.725616]    [<ffffffff81774af6>] _raw_spin_lock+0x36/0x70
[   81.725627]    [<ffffffff816dd751>] xfrm_stateonly_find+0x41/0x1f0
[   81.725629]    [<ffffffffa008af03>] mod_cur_headers+0x793/0x7f0 [pktgen]
[   81.725632]    [<ffffffffa008bca2>] pktgen_thread_worker+0xd42/0x1880 [pktgen]
[   81.725635]    [<ffffffff81078f84>] kthread+0xe4/0x100
[   81.725637]    [<ffffffff8177dc6c>] ret_from_fork+0x7c/0xb0
[   81.725640]
[   81.725641]
[   81.725641] stack backtrace:
[   81.725645] CPU: 0 PID: 2780 Comm: kpktgend_0 Not tainted 3.13.0-rc2+ #92
[   81.725647] Hardware name: innotek GmbH VirtualBox, BIOS VirtualBox 12/01/2006
[   81.725649]  ffffffff82537b80 ffff880018199988 ffffffff8176af37 0000000000000007
[   81.725652]  ffff8800181999f0 ffff8800181999d8 ffffffff81099358 ffffffff82537b80
[   81.725655]  ffffffff81a32def ffff8800181999f4 0000000000000000 ffff880002cbeaa8
[   81.725659] Call Trace:
[   81.725664]  [<ffffffff8176af37>] dump_stack+0x46/0x58
[   81.725667]  [<ffffffff81099358>] print_irq_inversion_bug.part.42+0x1e8/0x1f0
[   81.725670]  [<ffffffff810995c0>] check_usage_backwards+0x110/0x150
[   81.725672]  [<ffffffff81099e96>] mark_lock+0x196/0x2f0
[   81.725675]  [<ffffffff810994b0>] ? check_usage_forwards+0x150/0x150
[   81.725685]  [<ffffffff8109a67a>] __lock_acquire+0x68a/0x1d70
[   81.725691]  [<ffffffff810899a5>] ? sched_clock_local+0x25/0x90
[   81.725694]  [<ffffffff81089b38>] ? sched_clock_cpu+0xa8/0x120
[   81.725697]  [<ffffffff8109a31a>] ? __lock_acquire+0x32a/0x1d70
[   81.725699]  [<ffffffff816dd751>] ? xfrm_stateonly_find+0x41/0x1f0
[   81.725702]  [<ffffffff8109c3c7>] lock_acquire+0x97/0x130
[   81.725704]  [<ffffffff816dd751>] ? xfrm_stateonly_find+0x41/0x1f0
[   81.725707]  [<ffffffff810899a5>] ? sched_clock_local+0x25/0x90
[   81.725710]  [<ffffffff81774af6>] _raw_spin_lock+0x36/0x70
[   81.725712]  [<ffffffff816dd751>] ? xfrm_stateonly_find+0x41/0x1f0
[   81.725715]  [<ffffffff810971ec>] ? lock_release_holdtime.part.26+0x1c/0x1a0
[   81.725717]  [<ffffffff816dd751>] xfrm_stateonly_find+0x41/0x1f0
[   81.725721]  [<ffffffffa008af03>] mod_cur_headers+0x793/0x7f0 [pktgen]
[   81.725724]  [<ffffffffa008bca2>] pktgen_thread_worker+0xd42/0x1880 [pktgen]
[   81.725727]  [<ffffffffa008ba71>] ? pktgen_thread_worker+0xb11/0x1880 [pktgen]
[   81.725729]  [<ffffffff8109cf9d>] ? trace_hardirqs_on+0xd/0x10
[   81.725733]  [<ffffffff81775410>] ? _raw_spin_unlock_irq+0x30/0x40
[   81.725745]  [<ffffffff8151faa0>] ? e1000_clean+0x9d0/0x9d0
[   81.725751]  [<ffffffff81094310>] ? __init_waitqueue_head+0x60/0x60
[   81.725753]  [<ffffffff81094310>] ? __init_waitqueue_head+0x60/0x60
[   81.725757]  [<ffffffffa008af60>] ? mod_cur_headers+0x7f0/0x7f0 [pktgen]
[   81.725759]  [<ffffffff81078f84>] kthread+0xe4/0x100
[   81.725762]  [<ffffffff81078ea0>] ? flush_kthread_worker+0x170/0x170
[   81.725765]  [<ffffffff8177dc6c>] ret_from_fork+0x7c/0xb0
[   81.725768]  [<ffffffff81078ea0>] ? flush_kthread_worker+0x170/0x170
Signed-off-by: NFan Du <fan.du@windriver.com>
Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
      4ae770bf
  13. 02 1月, 2014 2 次提交
  15. 16 12月, 2013 1 次提交
  17. 06 12月, 2013 2 次提交
    • S
      xfrm: Remove ancient sleeping when the SA is in acquire state · 5b8ef341
      由 Steffen Klassert 提交于 
      We now queue packets to the policy if the states are not yet resolved,
this replaces the ancient sleeping code. Also the sleeping can cause
indefinite task hangs if the needed state does not get resolved.
Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
      5b8ef341
    • F
      xfrm: Namespacify xfrm state/policy locks · 283bc9f3
      由 Fan Du 提交于 
      By semantics, xfrm layer is fully name space aware,
so will the locks, e.g. xfrm_state/pocliy_lock.
Ensure exclusive access into state/policy link list
for different name space with one global lock is not
right in terms of semantics aspect at first place,
as they are indeed mutually independent with each
other, but also more seriously causes scalability
problem.

One practical scenario is on a Open Network Stack,
more than hundreds of lxc tenants acts as routers
within one host, a global xfrm_state/policy_lock
becomes the bottleneck. But onces those locks are
decoupled in a per-namespace fashion, locks contend
is just with in specific name space scope, without
causing additional SPD/SAD access delay for other
name space.

Also this patch improve scalability while as without
changing original xfrm behavior.
Signed-off-by: NFan Du <fan.du@windriver.com>
Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
      283bc9f3
  19. 01 10月, 2013 2 次提交
  21. 26 8月, 2013 1 次提交
  23. 16 8月, 2013 1 次提交
  25. 14 8月, 2013 1 次提交
    • H
      xfrm: make local error reporting more robust · 628e341f
      由 Hannes Frederic Sowa 提交于 
      In xfrm4 and xfrm6 we need to take care about sockets of the other
address family. This could happen because a 6in4 or 4in6 tunnel could
get protected by ipsec.

Because we don't want to have a run-time dependency on ipv6 when only
using ipv4 xfrm we have to embed a pointer to the correct local_error
function in xfrm_state_afinet and look it up when returning an error
depending on the socket address family.

Thanks to vi0ss for the great bug report:
<https://bugzilla.kernel.org/show_bug.cgi?id=58691>

v2:
a) fix two more unsafe interpretations of skb->sk as ipv6 socket
   (xfrm6_local_dontfrag and __xfrm6_output)
v3:
a) add an EXPORT_SYMBOL_GPL(xfrm_local_error) to fix a link error when
   building ipv6 as a module (thanks to Steffen Klassert)

Reported-by: <vi0oss@gmail.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
      628e341f
  27. 05 8月, 2013 1 次提交
  29. 06 3月, 2013 1 次提交
    • N
      xfrm: allow to avoid copying DSCP during encapsulation · a947b0a9
      由 Nicolas Dichtel 提交于 
      By default, DSCP is copying during encapsulation.
Copying the DSCP in IPsec tunneling may be a bit dangerous because packets with
different DSCP may get reordered relative to each other in the network and then
dropped by the remote IPsec GW if the reordering becomes too big compared to the
replay window.

It is possible to avoid this copy with netfilter rules, but it's very convenient
to be able to configure it for each SA directly.

This patch adds a toogle for this purpose. By default, it's not set to maintain
backward compatibility.

Field flags in struct xfrm_usersa_info is full, hence I add a new attribute.
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: NSteffen Klassert <steffen.klassert@secunet.com>
      a947b0a9
  31. 28 2月, 2013 1 次提交
    • S
      hlist: drop the node parameter from iterators · b67bfe0d
      由 Sasha Levin 提交于 
      I'm not sure why, but the hlist for each entry iterators were conceived

        list_for_each_entry(pos, head, member)

The hlist ones were greedy and wanted an extra parameter:

        hlist_for_each_entry(tpos, pos, head, member)

Why did they need an extra pos parameter? I'm not quite sure. Not only
they don't really need it, it also prevents the iterator from looking
exactly like the list iterator, which is unfortunate.

Besides the semantic patch, there was some manual work required:

 - Fix up the actual hlist iterators in linux/list.h
 - Fix up the declaration of other iterators based on the hlist ones.
 - A very small amount of places were using the 'node' parameter, this
 was modified to use 'obj->member' instead.
 - Coccinelle didn't handle the hlist_for_each_entry_safe iterator
 properly, so those had to be fixed up manually.

The semantic patch which is mostly the work of Peter Senna Tschudin is here:

@@
iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host;

type T;
expression a,c,d,e;
identifier b;
statement S;
@@

-T b;
    <+... when != b
(
hlist_for_each_entry(a,
- b,
c, d) S
|
hlist_for_each_entry_continue(a,
- b,
c) S
|
hlist_for_each_entry_from(a,
- b,
c) S
|
hlist_for_each_entry_rcu(a,
- b,
c, d) S
|
hlist_for_each_entry_rcu_bh(a,
- b,
c, d) S
|
hlist_for_each_entry_continue_rcu_bh(a,
- b,
c) S
|
for_each_busy_worker(a, c,
- b,
d) S
|
ax25_uid_for_each(a,
- b,
c) S
|
ax25_for_each(a,
- b,
c) S
|
inet_bind_bucket_for_each(a,
- b,
c) S
|
sctp_for_each_hentry(a,
- b,
c) S
|
sk_for_each(a,
- b,
c) S
|
sk_for_each_rcu(a,
- b,
c) S
|
sk_for_each_from
-(a, b)
+(a)
S
+ sk_for_each_from(a) S
|
sk_for_each_safe(a,
- b,
c, d) S
|
sk_for_each_bound(a,
- b,
c) S
|
hlist_for_each_entry_safe(a,
- b,
c, d, e) S
|
hlist_for_each_entry_continue_rcu(a,
- b,
c) S
|
nr_neigh_for_each(a,
- b,
c) S
|
nr_neigh_for_each_safe(a,
- b,
c, d) S
|
nr_node_for_each(a,
- b,
c) S
|
nr_node_for_each_safe(a,
- b,
c, d) S
|
- for_each_gfn_sp(a, c, d, b) S
+ for_each_gfn_sp(a, c, d) S
|
- for_each_gfn_indirect_valid_sp(a, c, d, b) S
+ for_each_gfn_indirect_valid_sp(a, c, d) S
|
for_each_host(a,
- b,
c) S
|
for_each_host_safe(a,
- b,
c, d) S
|
for_each_mesh_entry(a,
- b,
c, d) S
)
    ...+>

[akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c]
[akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c]
[akpm@linux-foundation.org: checkpatch fixes]
[akpm@linux-foundation.org: fix warnings]
[akpm@linux-foudnation.org: redo intrusive kvm changes]
Tested-by: NPeter Senna Tschudin <peter.senna@gmail.com>
Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: NSasha Levin <sasha.levin@oracle.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Gleb Natapov <gleb@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      b67bfe0d
  33. 30 1月, 2013 1 次提交
  35. 17 1月, 2013 1 次提交
  37. 16 1月, 2013 2 次提交
  39. 07 1月, 2013 1 次提交
  41. 18 9月, 2012 1 次提交
    • E
      userns: Convert the audit loginuid to be a kuid · e1760bd5
      由 Eric W. Biederman 提交于 
      Always store audit loginuids in type kuid_t.

Print loginuids by converting them into uids in the appropriate user
namespace, and then printing the resulting uid.

Modify audit_get_loginuid to return a kuid_t.

Modify audit_set_loginuid to take a kuid_t.

Modify /proc/<pid>/loginuid on read to convert the loginuid into the
user namespace of the opener of the file.

Modify /proc/<pid>/loginud on write to convert the loginuid
rom the user namespace of the opener of the file.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Cc: Paul Moore <paul@paul-moore.com> ?
Cc: David Miller <davem@davemloft.net>
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
      e1760bd5
  43. 11 9月, 2012 1 次提交
  45. 01 9月, 2012 1 次提交
  47. 16 8月, 2012 1 次提交
  49. 02 8月, 2012 1 次提交
  51. 23 11月, 2011 1 次提交
  53. 08 7月, 2011 1 次提交
  55. 23 4月, 2011 1 次提交
  57. 29 3月, 2011 1 次提交
  59. 22 3月, 2011 1 次提交
    • W
      xfrm: Fix initialize repl field of struct xfrm_state · a454f0cc
      由 Wei Yongjun 提交于 
      Commit 'xfrm: Move IPsec replay detection functions to a separate file'
  (9fdc4883)
introduce repl field to struct xfrm_state, and only initialize it
under SA's netlink create path, the other path, such as pf_key,
ipcomp/ipcomp6 etc, the repl field remaining uninitialize. So if
the SA is created by pf_key, any input packet with SA's encryption
algorithm will cause panic.

    int xfrm_input()
    {
        ...
        x->repl->advance(x, seq);
        ...
    }

This patch fixed it by introduce new function __xfrm_init_state().

Pid: 0, comm: swapper Not tainted 2.6.38-next+ #14 Bochs Bochs
EIP: 0060:[<c078e5d5>] EFLAGS: 00010206 CPU: 0
EIP is at xfrm_input+0x31c/0x4cc
EAX: dd839c00 EBX: 00000084 ECX: 00000000 EDX: 01000000
ESI: dd839c00 EDI: de3a0780 EBP: dec1de88 ESP: dec1de64
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process swapper (pid: 0, ti=dec1c000 task=c09c0f20 task.ti=c0992000)
Stack:
 00000000 00000000 00000002 c0ba27c0 00100000 01000000 de3a0798 c0ba27c0
 00000033 dec1de98 c0786848 00000000 de3a0780 dec1dea4 c0786868 00000000
 dec1debc c074ee56 e1da6b8c de3a0780 c074ed44 de3a07a8 dec1decc c074ef32
Call Trace:
 [<c0786848>] xfrm4_rcv_encap+0x22/0x27
 [<c0786868>] xfrm4_rcv+0x1b/0x1d
 [<c074ee56>] ip_local_deliver_finish+0x112/0x1b1
 [<c074ed44>] ? ip_local_deliver_finish+0x0/0x1b1
 [<c074ef32>] NF_HOOK.clone.1+0x3d/0x44
 [<c074ef77>] ip_local_deliver+0x3e/0x44
 [<c074ed44>] ? ip_local_deliver_finish+0x0/0x1b1
 [<c074ec03>] ip_rcv_finish+0x30a/0x332
 [<c074e8f9>] ? ip_rcv_finish+0x0/0x332
 [<c074ef32>] NF_HOOK.clone.1+0x3d/0x44
 [<c074f188>] ip_rcv+0x20b/0x247
 [<c074e8f9>] ? ip_rcv_finish+0x0/0x332
 [<c072797d>] __netif_receive_skb+0x373/0x399
 [<c0727bc1>] netif_receive_skb+0x4b/0x51
 [<e0817e2a>] cp_rx_poll+0x210/0x2c4 [8139cp]
 [<c072818f>] net_rx_action+0x9a/0x17d
 [<c0445b5c>] __do_softirq+0xa1/0x149
 [<c0445abb>] ? __do_softirq+0x0/0x149
Signed-off-by: NWei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      a454f0cc
  61. 14 3月, 2011 2 次提交
  63. 13 3月, 2011 1 次提交
  65. 28 2月, 2011 1 次提交
  67. 24 2月, 2011 1 次提交