linux-toradex.git/net/decnet/dn_route.c, branch v3.15.10 Linux kernel for Apalis and Colibri modules ipv4: add a sock pointer to dst->output() path. 2014-04-15T17:47:15+00:00 Eric Dumazet edumazet@google.com 2014-04-15T17:47:15+00:00 aad88724c9d54acb1a9737cb6069d8470fa85f74 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> 
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>
decnet: use __dev_get_by_index instead of dev_get_by_index to find interface 2014-01-15T02:50:46+00:00 Ying Xue ying.xue@windriver.com 2014-01-15T02:23:40+00:00 d4c5fba2f6c272ed687fe6351e5b20bc60cf24f0 The following call chain we can identify that dn_cache_getroute() is protected under rtnl_lock. So if we use __dev_get_by_index() instead of dev_get_by_index() to find interface handlers in it, this would help us avoid to change interface reference counter. rtnetlink_rcv() rtnl_lock() netlink_rcv_skb() dn_cache_getroute() rtnl_unlock() Signed-off-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
The following call chain we can identify that dn_cache_getroute() is
protected under rtnl_lock. So if we use __dev_get_by_index() instead
of dev_get_by_index() to find interface handlers in it, this would help
us avoid to change interface reference counter.

rtnetlink_rcv()
  rtnl_lock()
    netlink_rcv_skb()
      dn_cache_getroute()
  rtnl_unlock()

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: Remove FLOWI_FLAG_CAN_SLEEP 2013-12-06T06:24:39+00:00 Steffen Klassert steffen.klassert@secunet.com 2013-08-28T06:04:14+00:00 0e0d44ab4275549998567cd4700b43f7496eb62b FLOWI_FLAG_CAN_SLEEP was used to notify xfrm about the posibility to sleep until the needed states are resolved. This code is gone, so FLOWI_FLAG_CAN_SLEEP is not needed anymore. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> 
FLOWI_FLAG_CAN_SLEEP was used to notify xfrm about the posibility
to sleep until the needed states are resolved. This code is gone,
so FLOWI_FLAG_CAN_SLEEP is not needed anymore.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
decnet: Move rtm_dn_policy to dn_route to make it available if !CONFIG_DECNET_ROUTER 2013-03-22T16:51:59+00:00 Thomas Graf tgraf@suug.ch 2013-03-22T16:50:29+00:00 2fa70df935585479f974766d84fa68af462a25a5 Otherwise build fails with CONFIG_DECNET && !CONFIG_DECNET_ROUTER Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net> 
Otherwise build fails with CONFIG_DECNET && !CONFIG_DECNET_ROUTER

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
rtnetlink: Remove passing of attributes into rtnl_doit functions 2013-03-22T14:31:16+00:00 Thomas Graf tgraf@suug.ch 2013-03-21T07:45:29+00:00 661d2967b3f1b34eeaa7e212e7b9bbe8ee072b59 With decnet converted, we can finally get rid of rta_buf and its computations around it. It also gets rid of the minimal header length verification since all message handlers do that explicitly anyway. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net> 
With decnet converted, we can finally get rid of rta_buf and its
computations around it. It also gets rid of the minimal header
length verification since all message handlers do that explicitly
anyway.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
decnet: Parse netlink attributes on our own 2013-03-22T14:31:16+00:00 Thomas Graf tgraf@suug.ch 2013-03-21T07:45:28+00:00 58d7d8f9b20ee6f883532b952f246e4289fe06eb decnet is the only subsystem left that is relying on the global netlink attribute buffer rta_buf. It's horrible design and we want to get rid of it. This converts all of decnet to do implicit attribute parsing. It also gets rid of the error prone struct dn_kern_rta. Yes, the fib_magic() stuff is not pretty. It's compiled tested but I need someone with appropriate hardware to test the patch since I don't have access to it. Cc: linux-decnet-user@lists.sourceforge.net Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net> 
decnet is the only subsystem left that is relying on the global
netlink attribute buffer rta_buf. It's horrible design and we
want to get rid of it.

This converts all of decnet to do implicit attribute parsing. It
also gets rid of the error prone struct dn_kern_rta.

Yes, the fib_magic() stuff is not pretty.

It's compiled tested but I need someone with appropriate hardware
to test the patch since I don't have access to it.

Cc: linux-decnet-user@lists.sourceforge.net
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: proc: change proc_net_remove to remove_proc_entry 2013-02-18T19:53:08+00:00 Gao feng gaofeng@cn.fujitsu.com 2013-02-18T01:34:56+00:00 ece31ffd539e8e2b586b1ca5f50bc4f4591e3893 proc_net_remove is only used to remove proc entries that under /proc/net,it's not a general function for removing proc entries of netns. if we want to remove some proc entries which under /proc/net/stat/, we still need to call remove_proc_entry. this patch use remove_proc_entry to replace proc_net_remove. we can remove proc_net_remove after this patch. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
proc_net_remove is only used to remove proc entries
that under /proc/net,it's not a general function for
removing proc entries of netns. if we want to remove
some proc entries which under /proc/net/stat/, we still
need to call remove_proc_entry.

this patch use remove_proc_entry to replace proc_net_remove.
we can remove proc_net_remove after this patch.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net: proc: change proc_net_fops_create to proc_create 2013-02-18T19:53:08+00:00 Gao feng gaofeng@cn.fujitsu.com 2013-02-18T01:34:54+00:00 d4beaa66add8aebf83ab16d2fde4e4de8dac36df Right now, some modules such as bonding use proc_create to create proc entries under /proc/net/, and other modules such as ipv4 use proc_net_fops_create. It looks a little chaos.this patch changes all of proc_net_fops_create to proc_create. we can remove proc_net_fops_create after this patch. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Right now, some modules such as bonding use proc_create
to create proc entries under /proc/net/, and other modules
such as ipv4 use proc_net_fops_create.

It looks a little chaos.this patch changes all of
proc_net_fops_create to proc_create. we can remove
proc_net_fops_create after this patch.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
decnet: use correct RCU API to deref sk_dst_cache field 2013-01-28T05:15:27+00:00 Cong Wang amwang@redhat.com 2013-01-22T21:09:50+00:00 cec771d646d6c9a6f123b50e132ab142342dcb97 sock->sk_dst_cache is protected by RCU, therefore we should use __sk_dst_get() to deref it once we lock the sock. This fixes several sparse warnings. Cc: linux-decnet-user@lists.sourceforge.net Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
sock->sk_dst_cache is protected by RCU, therefore we should
use __sk_dst_get() to deref it once we lock the sock.

This fixes several sparse warnings.

Cc: linux-decnet-user@lists.sourceforge.net
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
netlink: Rename pid to portid to avoid confusion 2012-09-10T19:30:41+00:00 Eric W. Biederman ebiederm@xmission.com 2012-09-07T20:12:54+00:00 15e473046cb6e5d18a4d0057e61d76315230382b It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
It is a frequent mistake to confuse the netlink port identifier with a
process identifier.  Try to reduce this confusion by renaming fields
that hold port identifiers portid instead of pid.

I have carefully avoided changing the structures exported to
userspace to avoid changing the userspace API.

I have successfully built an allyesconfig kernel with this change.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>