- 08 10月, 2015 1 次提交
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由 WANG Cong 提交于
Similar to commit c29390c6 ("xps: must clear sender_cpu before forwarding") the skb->sender_cpu needs to be cleared when moving from Rx Tx, otherwise kernel could crash. Fixes: 2bd82484 ("xps: fix xps for stacked devices") Cc: Eric Dumazet <edumazet@google.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NCong Wang <cwang@twopensource.com> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Acked-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 10月, 2015 2 次提交
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由 WANG Cong 提交于
Align with other tc actions. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NCong Wang <cwang@twopensource.com> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Acked-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 WANG Cong 提交于
After commit 1ce87720 ("net: sched: make cls_u32 lockless") we began to release tc actions in a RCU callback. However, mirred action relies on RTNL lock to protect the global mirred_list, therefore we could have a race condition between RCU callback and netdevice event, which caused a list corruption as reported by Vinson. Instead of relying on RTNL lock, introduce a spinlock to protect this list. Note, in non-bind case, it is still called with RTNL lock, therefore should disable BH too. Reported-by: NVinson Lee <vlee@twopensource.com> Cc: John Fastabend <john.fastabend@gmail.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NCong Wang <cwang@twopensource.com> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Acked-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 04 8月, 2015 1 次提交
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由 WANG Cong 提交于
When we share an action within a filter, the bind refcnt should increase, therefore we should not call tcf_hash_release(). Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Signed-off-by: NCong Wang <cwang@twopensource.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 09 7月, 2015 2 次提交
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由 Eric Dumazet 提交于
Like act_gact, act_mirred can be lockless in packet processing 1) Use percpu stats 2) update lastuse only every clock tick to avoid false sharing 3) use rcu to protect tcfm_dev 4) Remove spinlock usage, as it is no longer needed. Next step : add multi queue capability to ifb device Signed-off-by: NEric Dumazet <edumazet@google.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: John Fastabend <john.fastabend@gmail.com> Acked-by: NJamal Hadi Salim <jhs@mojatatu.com> Acked-by: NAlexei Starovoitov <ast@plumgrid.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Reuse existing percpu infrastructure John Fastabend added for qdisc. This patch adds a new cpustats parameter to tcf_hash_create() and all actions pass false, meaning this patch should have no effect yet. Signed-off-by: NEric Dumazet <edumazet@google.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Acked-by: NJamal Hadi Salim <jhs@mojatatu.com> Acked-by: NJohn Fastabend <john.fastabend@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 14 5月, 2015 1 次提交
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由 Florian Westphal 提交于
Seems all we want here is to avoid endless 'goto reclassify' loop. tc_classify_compat even resets this counter when something other than TC_ACT_RECLASSIFY is returned, so this skb-counter doesn't break hypothetical loops induced by something other than perpetual TC_ACT_RECLASSIFY return values. skb_act_clone is now identical to skb_clone, so just use that. Tested with following (bogus) filter: tc filter add dev eth0 parent ffff: \ protocol ip u32 match u32 0 0 police rate 10Kbit burst \ 64000 mtu 1500 action reclassify Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NFlorian Westphal <fw@strlen.de> Acked-by: NAlexei Starovoitov <ast@plumgrid.com> Acked-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 4月, 2015 1 次提交
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由 Herbert Xu 提交于
When you redirect a VLAN device to any device, you end up with crap in af_packet on the xmit path because hard_header_len is not equal to skb->mac_len. So the redirected packet contains four extra bytes at the start which then gets interpreted as part of the MAC address. This patch fixes this by only pushing skb->mac_len. We also need to fix ifb because it tries to undo the pushing done by act_mirred. Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Acked-by: NAlexei Starovoitov <ast@plumgrid.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 07 11月, 2014 1 次提交
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由 Jiri Pirko 提交于
Fixes: 4bba3925 ("[PKT_SCHED]: Prefix tc actions with act_") Signed-off-by: NJiri Pirko <jiri@resnulli.us> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 21 7月, 2014 1 次提交
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由 Cong Wang 提交于
We modify mirred action (m->tcfm_dev) in netdev event, we need to prevent on-going mirred actions from reading freed m->tcfm_dev. So we need to acquire this spin lock. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: NCong Wang <cwang@twopensource.com> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 13 2月, 2014 3 次提交
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由 WANG Cong 提交于
Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Signed-off-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 WANG Cong 提交于
For bindcnt and refcnt etc., they are common for all actions, not need to repeat such operations for their own, they can be unified now. Actions just need to do its specific cleanup if needed. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Signed-off-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 WANG Cong 提交于
Now we can totally hide it from modules. tcf_hash_*() API's will operate on struct tc_action, modules don't need to care about the details. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Signed-off-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 22 1月, 2014 1 次提交
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由 WANG Cong 提交于
Every action ops has a pointer to hash info, so we don't need to hard-code it in each module. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Signed-off-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 1月, 2014 1 次提交
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由 WANG Cong 提交于
It is not actually implemented. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 14 1月, 2014 1 次提交
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由 WANG Cong 提交于
There is no need to store the index separatedly since tcf_hashinfo is allocated statically too. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Signed-off-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 21 12月, 2013 1 次提交
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由 WANG Cong 提交于
This patch fixes: 1) pass mask rather than size to tcf_hashinfo_init() 2) the cleanup should be in reversed order in mirred_cleanup_module() Reported-by: NEric Dumazet <eric.dumazet@gmail.com> Fixes: 369ba567 ("net_sched: init struct tcf_hashinfo at register time") Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Signed-off-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 19 12月, 2013 1 次提交
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由 WANG Cong 提交于
It looks weird to store the lock out of the struct but still points to a static variable. Just move them into the struct. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com> Signed-off-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 06 12月, 2013 2 次提交
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由 Jamal Hadi Salim 提交于
Signed-off-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jamal Hadi Salim 提交于
Signed-off-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 29 5月, 2013 1 次提交
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由 Jiri Pirko 提交于
So far, only net_device * could be passed along with netdevice notifier event. This patch provides a possibility to pass custom structure able to provide info that event listener needs to know. Signed-off-by: NJiri Pirko <jiri@resnulli.us> v2->v3: fix typo on simeth shortened dev_getter shortened notifier_info struct name v1->v2: fix notifier_call parameter in call_netdevice_notifier() Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 15 1月, 2013 1 次提交
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由 Benjamin LaHaise 提交于
Eric Dumazet pointed out that act_mirred needs to find the current net_ns, and struct net pointer is not provided in the call chain. His original patch made use of current->nsproxy->net_ns to find the network namespace, but this fails to work correctly for userspace code that makes use of netlink sockets in different network namespaces. Instead, pass the "struct net *" down along the call chain to where it is needed. This version removes the ifb changes as Eric has submitted that patch separately, but is otherwise identical to the previous version. Signed-off-by: NBenjamin LaHaise <bcrl@kvack.org> Tested-by: NEric Dumazet <eric.dumazet@gmail.com> Acked-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 17 8月, 2012 1 次提交
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由 Jason Wang 提交于
We drop packet unconditionally when we fail to mirror it. This is not intended in some cases. Consdier for kvm guest, we may mirror the traffic of the bridge to a tap device used by a VM. When kernel fails to mirror the packet in conditions such as when qemu crashes or stop polling the tap, it's hard for the management software to detect such condition and clean the the mirroring before. This would lead all packets to the bridge to be dropped and break the netowrk of other virtual machines. To solve the issue, the patch does not drop packets when kernel fails to mirror it, and only drop the redirected packets. Signed-off-by: NJason Wang <jasowang@redhat.com> Signed-off-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 16 5月, 2012 1 次提交
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由 Joe Perches 提交于
Standardize the net core ratelimited logging functions. Coalesce formats, align arguments. Change a printk then vprintk sequence to use printf extension %pV. Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 02 4月, 2012 1 次提交
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由 David S. Miller 提交于
These macros contain a hidden goto, and are thus extremely error prone and make code hard to audit. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 8月, 2011 1 次提交
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由 Jamal Hadi Salim 提交于
When a redirected or mirrored packet is dropped by the target device we need to record statistics. Signed-off-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 06 7月, 2011 1 次提交
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由 Eric Dumazet 提交于
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 1月, 2011 1 次提交
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由 Eric Dumazet 提交于
Cleanup net/sched code to current CodingStyle and practices. Reduce inline abuse Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 1月, 2011 1 次提交
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由 Eric Dumazet 提交于
HTB takes into account skb is segmented in stats updates. Generalize this to all schedulers. They should use qdisc_bstats_update() helper instead of manipulating bstats.bytes and bstats.packets Add bstats_update() helper too for classes that use gnet_stats_basic_packed fields. Note : Right now, TCQ_F_CAN_BYPASS shortcurt can be taken only if no stab is setup on qdisc. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 8月, 2010 1 次提交
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由 Eric Dumazet 提交于
We leak at least 32bits of kernel memory to user land in tc dump, because we dont init all fields (capab ?) of the dumped structure. Use C99 initializers so that holes and non explicit fields are zeroed. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 25 7月, 2010 1 次提交
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由 stephen hemminger 提交于
This fixes hang when target device of mirred packet classifier action is removed. If a mirror or redirection action is configured to cause packets to go to another device, the classifier holds a ref count, but was assuming the adminstrator cleaned up all redirections before removing. The fix is to add a notifier and cleanup during unregister. The new list is implicitly protected by RTNL mutex because it is held during filter add/delete as well as notifier. Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Acked-by: NJamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 7月, 2010 1 次提交
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由 Changli Gao 提交于
act_mirred: combine duplicate code tcf_bstats is updated in any way, so we can do it earlier to reduce the size of the code. Signed-off-by: NChangli Gao <xiaosuo@gmail.com> Signed-off-by: NJamal Hadi Salim <hadi@cyberus.ca> ---- net/sched/act_mirred.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 29 6月, 2010 1 次提交
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由 Changli Gao 提交于
don't clone skb when skb isn't shared When the tcf_action is TC_ACT_STOLEN, and the skb isn't shared, we don't need to clone a new skb. As the skb will be freed after this function returns, we can use it freely once we get a reference to it. Signed-off-by: NChangli Gao <xiaosuo@gmail.com> ---- include/net/sch_generic.h | 11 +++++++++-- net/sched/act_mirred.c | 6 +++--- 2 files changed, 12 insertions(+), 5 deletions(-) Signed-off-by: NJamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 5月, 2010 1 次提交
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由 stephen hemminger 提交于
The previous patch encourage me to go look at all the messages in the network scheduler and fix them. Many messages were missing any severity level. Some serious ones that should never happen were turned into WARN(), and the random noise messages that were handled changed to pr_debug(). Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 30 3月, 2010 1 次提交
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由 Tejun Heo 提交于
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: NTejun Heo <tj@kernel.org> Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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- 21 11月, 2009 1 次提交
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由 Eric Dumazet 提交于
To help grep games, rename iif to skb_iif Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 17 11月, 2009 2 次提交
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由 Changli Gao 提交于
move checking if eaction is valid in tcf_mirred_init() Signed-off-by: NChangli Gao <xiaosuo@gmail.com> Signed-off-by: NJamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Changli Gao 提交于
1. don't let go back using goto. 2. don't call skb_act_clone() until it is necessary. 3. one exit of the critical context. Signed-off-by: NChangli Gao <xiaosuo@gmail.com> Signed-off-by: NJamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 26 11月, 2008 1 次提交
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由 Stephen Hemminger 提交于
Allow tcf_hash_create to return different errors on estimator failure. Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 7月, 2008 1 次提交
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由 Jussi Kivilinna 提交于
Signed-off-by: NJussi Kivilinna <jussi.kivilinna@mbnet.fi> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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