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All other add functions for lists have the new item as first argument
and the position where it is added as second argument. This was changed
for no good reason in this function and makes using it unnecessary
confusing.
The name was changed to hlist_add_behind() to cause unconverted code to
generate a compile error instead of using the wrong parameter order.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Ken Helias <kenhelias@firemail.de>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> [intel driver bits]
Cc: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The SPI check introduced in ea9884b3acf3311c8a11db67bfab21773f6f82ba
was intended for IPComp SAs but actually prevented AH SAs from getting
installed (depending on the SPI).
Fixes: ea9884b3acf3 ("xfrm: check user specified spi for IPComp")
Cc: Fan Du <fan.du@windriver.com>
Signed-off-by: Tobias Brunner <tobias@strongswan.org>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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xfrm_lookup must return a dst_entry with a refcount for the caller.
Git commit 1a1ccc96abb ("xfrm: Remove caching of xfrm_policy_sk_bundles")
removed this refcount for the socket policy case accidentally.
This patch restores it and sets DST_NOCACHE flag to make sure
that the dst_entry is freed when the refcount becomes null.
Fixes: 1a1ccc96abb ("xfrm: Remove caching of xfrm_policy_sk_bundles")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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Conflicts:
include/net/inetpeer.h
net/ipv6/output_core.c
Changes in net were fixing bugs in code removed in net-next.
Signed-off-by: David S. Miller <davem@davemloft.net>
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The xfrm_user module registers its pernet init/exit after xfrm
itself so that its net exit function xfrm_user_net_exit() is
executed before xfrm_net_exit() which calls xfrm_state_fini() to
cleanup the SA's (xfrm states). This opens a window between
zeroing net->xfrm.nlsk pointer and deleting all xfrm_state
instances which may access it (via the timer). If an xfrm state
expires in this window, xfrm_exp_state_notify() will pass null
pointer as socket to nlmsg_multicast().
As the notifications are called inside rcu_read_lock() block, it
is sufficient to retrieve the nlsk socket with rcu_dereference()
and check the it for null.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:
====================
pull request (net-next): ipsec-next 2014-05-22
This is the last ipsec pull request before I leave for
a three weeks vacation tomorrow. David, can you please
take urgent ipsec patches directly into net/net-next
during this time?
I'll continue to run the ipsec/ipsec-next trees as soon
as I'm back.
1) Simplify the xfrm audit handling, from Tetsuo Handa.
2) Codingstyle cleanup for xfrm_output, from abian Frederick.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix checkpatch warning:
"WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable"
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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Commit f1370cc4 "xfrm: Remove useless secid field from xfrm_audit." changed
"struct xfrm_audit" to have either
{ audit_get_loginuid(current) / audit_get_sessionid(current) } or
{ INVALID_UID / -1 } pair.
This means that we can represent "struct xfrm_audit" as "bool".
This patch replaces "struct xfrm_audit" argument with "bool".
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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It seems to me that commit ab5f5e8b "[XFRM]: xfrm audit calls" is doing
something strange at xfrm_audit_helper_usrinfo().
If secid != 0 && security_secid_to_secctx(secid) != 0, the caller calls
audit_log_task_context() which basically does
secid != 0 && security_secid_to_secctx(secid) == 0 case
except that secid is obtained from current thread's context.
Oh, what happens if secid passed to xfrm_audit_helper_usrinfo() was
obtained from other thread's context? It might audit current thread's
context rather than other thread's context if security_secid_to_secctx()
in xfrm_audit_helper_usrinfo() failed for some reason.
Then, are all the caller of xfrm_audit_helper_usrinfo() passing either
secid obtained from current thread's context or secid == 0?
It seems to me that they are.
If I didn't miss something, we don't need to pass secid to
xfrm_audit_helper_usrinfo() because audit_log_task_context() will
obtain secid from current thread's context.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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Conflicts:
drivers/net/ethernet/altera/altera_sgdma.c
net/netlink/af_netlink.c
net/sched/cls_api.c
net/sched/sch_api.c
The netlink conflict dealt with moving to netlink_capable() and
netlink_ns_capable() in the 'net' tree vs. supporting 'tc' operations
in non-init namespaces. These were simple transformations from
netlink_capable to netlink_ns_capable.
The Altera driver conflict was simply code removal overlapping some
void pointer cast cleanups in net-next.
Signed-off-by: David S. Miller <davem@davemloft.net>
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It is possible by passing a netlink socket to a more privileged
executable and then to fool that executable into writing to the socket
data that happens to be valid netlink message to do something that
privileged executable did not intend to do.
To keep this from happening replace bare capable and ns_capable calls
with netlink_capable, netlink_net_calls and netlink_ns_capable calls.
Which act the same as the previous calls except they verify that the
opener of the socket had the desired permissions as well.
Reported-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit 8f0ea0fe3a036a47767f9c80e (snmp: reduce percpu needs by 50%)
reduced snmp array size to 1, so technically it doesn't have to be
an array any more. What's more, after the following commit:
commit 933393f58fef9963eac61db8093689544e29a600
Date: Thu Dec 22 11:58:51 2011 -0600
percpu: Remove irqsafe_cpu_xxx variants
We simply say that regular this_cpu use must be safe regardless of
preemption and interrupt state. That has no material change for x86
and s390 implementations of this_cpu operations. However, arches that
do not provide their own implementation for this_cpu operations will
now get code generated that disables interrupts instead of preemption.
probably no arch wants to have SNMP_ARRAY_SZ == 2. At least after
almost 3 years, no one complains.
So, just convert the array to a single pointer and remove snmp_mib_init()
and snmp_mib_free() as well.
Cc: Christoph Lameter <cl@linux.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In the dst->output() path for ipv4, the code assumes the skb it has to
transmit is attached to an inet socket, specifically via
ip_mc_output() : The sk_mc_loop() test triggers a WARN_ON() when the
provider of the packet is an AF_PACKET socket.
The dst->output() method gets an additional 'struct sock *sk'
parameter. This needs a cascade of changes so that this parameter can
be propagated from vxlan to final consumer.
Fixes: 8f646c922d55 ("vxlan: keep original skb ownership")
Reported-by: lucien xin <lucien.xin@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Conflicts:
Documentation/devicetree/bindings/net/micrel-ks8851.txt
net/core/netpoll.c
The net/core/netpoll.c conflict is a bug fix in 'net' happening
to code which is completely removed in 'net-next'.
In micrel-ks8851.txt we simply have overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
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security_xfrm_policy_alloc can be called in atomic context so the
allocation should be done with GFP_ATOMIC. Add an argument to let the
callers choose the appropriate way. In order to do so a gfp argument
needs to be added to the method xfrm_policy_alloc_security in struct
security_operations and to the internal function
selinux_xfrm_alloc_user. After that switch to GFP_ATOMIC in the atomic
callers and leave GFP_KERNEL as before for the rest.
The path that needed the gfp argument addition is:
security_xfrm_policy_alloc -> security_ops.xfrm_policy_alloc_security ->
all users of xfrm_policy_alloc_security (e.g. selinux_xfrm_policy_alloc) ->
selinux_xfrm_alloc_user (here the allocation used to be GFP_KERNEL only)
Now adding a gfp argument to selinux_xfrm_alloc_user requires us to also
add it to security_context_to_sid which is used inside and prior to this
patch did only GFP_KERNEL allocation. So add gfp argument to
security_context_to_sid and adjust all of its callers as well.
CC: Paul Moore <paul@paul-moore.com>
CC: Dave Jones <davej@redhat.com>
CC: Steffen Klassert <steffen.klassert@secunet.com>
CC: Fan Du <fan.du@windriver.com>
CC: David S. Miller <davem@davemloft.net>
CC: LSM list <linux-security-module@vger.kernel.org>
CC: SELinux list <selinux@tycho.nsa.gov>
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:
====================
One patch to rename a newly introduced struct. The rest is
the rework of the IPsec virtual tunnel interface for ipv6 to
support inter address family tunneling and namespace crossing.
1) Rename the newly introduced struct xfrm_filter to avoid a
conflict with iproute2. From Nicolas Dichtel.
2) Introduce xfrm_input_afinfo to access the address family
dependent tunnel callback functions properly.
3) Add and use a IPsec protocol multiplexer for ipv6.
4) Remove dst_entry caching. vti can lookup multiple different
dst entries, dependent of the configured xfrm states. Therefore
it does not make to cache a dst_entry.
5) Remove caching of flow informations. vti6 does not use the the
tunnel endpoint addresses to do route and xfrm lookups.
6) Update the vti6 to use its own receive hook.
7) Remove the now unused xfrm_tunnel_notifier. This was used from vti
and is replaced by the IPsec protocol multiplexer hooks.
8) Support inter address family tunneling for vti6.
9) Check if the tunnel endpoints of the xfrm state and the vti interface
are matching and return an error otherwise.
10) Enable namespace crossing for vti devices.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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IPv6 can be build as a module, so we need mechanism to access
the address family dependent callback functions properly.
Therefore we introduce xfrm_input_afinfo, similar to that
what we have for the address family dependent part of
policies and states.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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iproute2 already defines a structure with that name, let's use another one to
avoid any conflict.
CC: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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We leak an active timer, the hotcpu notifier and all allocated
resources when we exit a namespace. Fix this by introducing a
flow_cache_fini() function where we release the resources before
we exit.
Fixes: ca925cf1534e ("flowcache: Make flow cache name space aware")
Reported-by: Jakub Kicinski <moorray3@wp.pl>
Tested-by: Jakub Kicinski <moorray3@wp.pl>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Conflicts:
drivers/net/wireless/ath/ath9k/recv.c
drivers/net/wireless/mwifiex/pcie.c
net/ipv6/sit.c
The SIT driver conflict consists of a bug fix being done by hand
in 'net' (missing u64_stats_init()) whilst in 'net-next' a helper
was created (netdev_alloc_pcpu_stats()) which takes care of this.
The two wireless conflicts were overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
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When a policy is unlinked from the lists in thread context,
the xfrm timer can fire before we can mark this policy as dead.
So reinitialize the bydst hlist, then hlist_unhashed() will
notice that this policy is not linked and will avoid a
doulble unlink of that policy.
Reported-by: Xianpeng Zhao <673321875@qq.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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We loose a lot of information of the original state if we
clone it with xfrm_state_clone(). In particular, there is
no crypto algorithm attached if the original state uses
an aead algorithm. This patch add the missing information
to the clone state.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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A comment on xfrm_migrate_state_find() says that xfrm_state_lock
is held. This is apparently not the case, but we need it to
traverse through the state lists.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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xfrm_state_sort() takes the unsorted states from the src array
and stores them into the dst array. We try to get the namespace
from the dst array which is empty at this time, so take the
namespace from the src array instead.
Fixes: 283bc9f35bbbc ("xfrm: Namespacify xfrm state/policy locks")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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IPsec vti_rcv needs to remind the tunnel pointer to
check it later at the vti_rcv_cb callback. So add
this pointer to the IPsec common buffer, initialize
it and check it to avoid transport state matching of
a tunneled packet.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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This patch add an IPsec protocol multiplexer. With this
it is possible to add alternative protocol handlers as
needed for IPsec virtual tunnel interfaces.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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The error pointer passed to xfrm_state_clone() is unchecked,
so remove it and indicate an error by returning a null pointer.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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We currently cache socket policy bundles at xfrm_policy_sk_bundles.
These cached bundles are never used. Instead we create and cache
a new one whenever xfrm_lookup() is called on a socket policy.
Most protocols cache the used routes to the socket, so let's
remove the unused caching of socket policy bundles in xfrm.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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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: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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In the case when KMs have no listeners, km_query() will fail and
temporary SAs are garbage collected immediately after their allocation.
This causes strain on memory allocation, leading even to OOM since
temporary SA alloc/free cycle is performed for every packet
and garbage collection does not keep up the pace.
The sane thing to do is to make sure we have audience before
temporary SA allocation.
Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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Inserting a entry into flowcache, or flushing flowcache should be based
on per net scope. The reason to do so is flushing operation from fat
netns crammed with flow entries will also making the slim netns with only
a few flow cache entries go away in original implementation.
Since flowcache is tightly coupled with IPsec, so it would be easier to
put flow cache global parameters into xfrm namespace part. And one last
thing needs to do is bumping flow cache genid, and flush flow cache should
also be made in per net style.
Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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Clear checking when user try to use ESN through netlink keymgr for AH.
As only ESP and AH support ESN feature according to RFC.
Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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Pull networking updates from David Miller:
1) BPF debugger and asm tool by Daniel Borkmann.
2) Speed up create/bind in AF_PACKET, also from Daniel Borkmann.
3) Correct reciprocal_divide and update users, from Hannes Frederic
Sowa and Daniel Borkmann.
4) Currently we only have a "set" operation for the hw timestamp socket
ioctl, add a "get" operation to match. From Ben Hutchings.
5) Add better trace events for debugging driver datapath problems, also
from Ben Hutchings.
6) Implement auto corking in TCP, from Eric Dumazet. Basically, if we
have a small send and a previous packet is already in the qdisc or
device queue, defer until TX completion or we get more data.
7) Allow userspace to manage ipv6 temporary addresses, from Jiri Pirko.
8) Add a qdisc bypass option for AF_PACKET sockets, from Daniel
Borkmann.
9) Share IP header compression code between Bluetooth and IEEE802154
layers, from Jukka Rissanen.
10) Fix ipv6 router reachability probing, from Jiri Benc.
11) Allow packets to be captured on macvtap devices, from Vlad Yasevich.
12) Support tunneling in GRO layer, from Jerry Chu.
13) Allow bonding to be configured fully using netlink, from Scott
Feldman.
14) Allow AF_PACKET users to obtain the VLAN TPID, just like they can
already get the TCI. From Atzm Watanabe.
15) New "Heavy Hitter" qdisc, from Terry Lam.
16) Significantly improve the IPSEC support in pktgen, from Fan Du.
17) Allow ipv4 tunnels to cache routes, just like sockets. From Tom
Herbert.
18) Add Proportional Integral Enhanced packet scheduler, from Vijay
Subramanian.
19) Allow openvswitch to mmap'd netlink, from Thomas Graf.
20) Key TCP metrics blobs also by source address, not just destination
address. From Christoph Paasch.
21) Support 10G in generic phylib. From Andy Fleming.
22) Try to short-circuit GRO flow compares using device provided RX
hash, if provided. From Tom Herbert.
The wireless and netfilter folks have been busy little bees too.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2064 commits)
net/cxgb4: Fix referencing freed adapter
ipv6: reallocate addrconf router for ipv6 address when lo device up
fib_frontend: fix possible NULL pointer dereference
rtnetlink: remove IFLA_BOND_SLAVE definition
rtnetlink: remove check for fill_slave_info in rtnl_have_link_slave_info
qlcnic: update version to 5.3.55
qlcnic: Enhance logic to calculate msix vectors.
qlcnic: Refactor interrupt coalescing code for all adapters.
qlcnic: Update poll controller code path
qlcnic: Interrupt code cleanup
qlcnic: Enhance Tx timeout debugging.
qlcnic: Use bool for rx_mac_learn.
bonding: fix u64 division
rtnetlink: add missing IFLA_BOND_AD_INFO_UNSPEC
sfc: Use the correct maximum TX DMA ring size for SFC9100
Add Shradha Shah as the sfc driver maintainer.
net/vxlan: Share RX skb de-marking and checksum checks with ovs
tulip: cleanup by using ARRAY_SIZE()
ip_tunnel: clear IPCB in ip_tunnel_xmit() in case dst_link_failure() is called
net/cxgb4: Don't retrieve stats during recovery
...
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This patch removes the net_random and net_srandom macros and replaces
them with direct calls to the prandom ones. As new commits only seem to
use prandom_u32 there is no use to keep them around.
This change makes it easier to grep for users of prandom_u32.
Signed-off-by: Aruna-Hewapathirane <aruna.hewapathirane@gmail.com>
Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Conflicts:
net/xfrm/xfrm_policy.c
Steffen Klassert says:
====================
This pull request has a merge conflict between commits be7928d20bab
("net: xfrm: xfrm_policy: fix inline not at beginning of declaration") and
da7c224b1baa ("net: xfrm: xfrm_policy: silence compiler warning") from
the net-next tree and commit 2f3ea9a95c58 ("xfrm: checkpatch erros with
inline keyword position") from the ipsec-next tree.
The version from net-next can be used, like it is done in linux-next.
1) Checkpatch cleanups, from Weilong Chen.
2) Fix lockdep complaints when pktgen is used with IPsec,
from Fan Du.
3) Update pktgen to allow any combination of IPsec transport/tunnel mode
and AH/ESP/IPcomp type, from Fan Du.
4) Make pktgen_dst_metrics static, Fengguang Wu.
5) Compile fix for pktgen when CONFIG_XFRM is not set,
from Fan Du.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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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: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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Fix that "else should follow close brace '}'".
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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Fix checkpatch error "space prohibited xxx".
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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This patch clean up some checkpatch errors like this:
ERROR: "foo * bar" should be "foo *bar"
ERROR: "(foo*)" should be "(foo *)"
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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This patch cleanup some space errors.
Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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Fix below compiler warning:
net/xfrm/xfrm_policy.c:1644:12: warning: ‘xfrm_dst_alloc_copy’ defined but not used [-Wunused-function]
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix three warnings related to:
net/xfrm/xfrm_policy.c:1644:1: warning: 'inline' is not at beginning of declaration [-Wold-style-declaration]
net/xfrm/xfrm_policy.c:1656:1: warning: 'inline' is not at beginning of declaration [-Wold-style-declaration]
net/xfrm/xfrm_policy.c:1668:1: warning: 'inline' is not at beginning of declaration [-Wold-style-declaration]
Just removing the inline keyword is sufficient as the compiler will
decide on its own about inlining or not.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In order to check against valid IPcomp spi range, export verify_userspi_info
for both pfkey and netlink interface.
Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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IPComp connection between two hosts is broken if given spi bigger
than 0xffff.
OUTSPI=0x87
INSPI=0x11112
ip xfrm policy update dst 192.168.1.101 src 192.168.1.109 dir out action allow \
tmpl dst 192.168.1.101 src 192.168.1.109 proto comp spi $OUTSPI
ip xfrm policy update src 192.168.1.101 dst 192.168.1.109 dir in action allow \
tmpl src 192.168.1.101 dst 192.168.1.109 proto comp spi $INSPI
ip xfrm state add src 192.168.1.101 dst 192.168.1.109 proto comp spi $INSPI \
comp deflate
ip xfrm state add dst 192.168.1.101 src 192.168.1.109 proto comp spi $OUTSPI \
comp deflate
tcpdump can capture outbound ping packet, but inbound packet is
dropped with XfrmOutNoStates errors. It looks like spi value used
for IPComp is expected to be 16bits wide only.
Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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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: Steffen Klassert <steffen.klassert@secunet.com>
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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: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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because the home agent could surely be run on a different
net namespace other than init_net. The original behavior
could lead into inconsistent of key info.
Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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xfrm code always searches for unused policy index for
newly created policy regardless whether or not user
space policy index hint supplied.
This patch enables such feature so that using
"ip xfrm ... index=xxx" can be used by user to set
specific policy index.
Currently this beahvior is broken, so this patch make
it happen as expected.
Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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