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  1. 16 9月, 2014 1 次提交
  3. 10 9月, 2014 1 次提交
  5. 04 9月, 2014 1 次提交
  7. 03 9月, 2014 1 次提交
  9. 23 8月, 2014 2 次提交
    • A
      net/openvswitch/flow.c: Replace rcu_dereference() with rcu_access_pointer() · 8c6b00c8
      由 Andreea-Cristina Bernat 提交于 
      The "rcu_dereference()" call is used directly in a condition.
Since its return value is never dereferenced it is recommended to use
"rcu_access_pointer()" instead of "rcu_dereference()".
Therefore, this patch makes the replacement.

The following Coccinelle semantic patch was used:
@@
@@

(
 if(
 (<+...
- rcu_dereference
+ rcu_access_pointer
  (...)
  ...+>)) {...}
|
 while(
 (<+...
- rcu_dereference
+ rcu_access_pointer
  (...)
  ...+>)) {...}
)
Signed-off-by: NAndreea-Cristina Bernat <bernat.ada@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      8c6b00c8
    • J
      openvswitch: fix panic with multiple vlan headers · 2ba5af42
      由 Jiri Benc 提交于 
      When there are multiple vlan headers present in a received frame, the first
one is put into vlan_tci and protocol is set to ETH_P_8021Q. Anything in the
skb beyond the VLAN TPID may be still non-linear, including the inner TCI
and ethertype. While ovs_flow_extract takes care of IP and IPv6 headers, it
does nothing with ETH_P_8021Q. Later, if OVS_ACTION_ATTR_POP_VLAN is
executed, __pop_vlan_tci pulls the next vlan header into vlan_tci.

This leads to two things:

1. Part of the resulting ethernet header is in the non-linear part of the
   skb. When eth_type_trans is called later as the result of
   OVS_ACTION_ATTR_OUTPUT, kernel BUGs in __skb_pull. Also, __pop_vlan_tci
   is in fact accessing random data when it reads past the TPID.

2. network_header points into the ethernet header instead of behind it.
   mac_len is set to a wrong value (10), too.
Reported-by: NYulong Pei <ypei@redhat.com>
Signed-off-by: NJiri Benc <jbenc@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      2ba5af42
  11. 14 8月, 2014 1 次提交
  13. 08 8月, 2014 1 次提交
  15. 31 7月, 2014 1 次提交
  17. 30 7月, 2014 1 次提交
  19. 25 7月, 2014 3 次提交
    • A
      openvswitch: Add skb_clone NULL check for the sampling action. · d9e0ecb8
      由 Andy Zhou 提交于 
      Fix a bug where skb_clone() NULL check is missing in sample action
implementation.
Signed-off-by: NAndy Zhou <azhou@nicira.com>
Signed-off-by: NPravin B Shelar <pshelar@nicira.com>
      d9e0ecb8
    • S
      openvswitch: Sample action without side effects · 651887b0
      由 Simon Horman 提交于 
      The sample action is rather generic, allowing arbitrary actions to be
executed based on a probability. However its use, within the Open
vSwitch
code-base is limited: only a single user-space action is ever nested.

A consequence of the current implementation of sample actions is that
depending on weather the sample action executed (due to its probability)
any side-effects of nested actions may or may not be present before
executing subsequent actions.  This has the potential to complicate
verification of valid actions by the (kernel) datapath. And indeed
adding support for push and pop MPLS actions inside sample actions
is one case where such case.

In order to allow all supported actions to be continue to be nested
inside sample actions without the potential need for complex
verification code this patch changes the implementation of the sample
action in the kernel datapath so that sample actions are more like
a function call and any side effects of nested actions are not
present when executing subsequent actions.

With the above in mind the motivation for this change is twofold:

* To contain side-effects the sample action in the hope of making it
  easier to deal with in the future and;
* To avoid some rather complex verification code introduced in the MPLS
  datapath patch.
Signed-off-by: NSimon Horman <horms@verge.net.au>
Signed-off-by: NJesse Gross <jesse@nicira.com>
Signed-off-by: NPravin B Shelar <pshelar@nicira.com>
      651887b0
    • A
      openvswitch: Avoid memory corruption in queue_userspace_packet() · f53e3831
      由 Andy Zhou 提交于 
      In queue_userspace_packet(), the ovs_nla_put_flow return value is
not checked. This is fine as long as key_attr_size() returns the
correct value. In case it does not, the current code may corrupt buffer
memory. Add a run time assertion catch this case to avoid silent
failure.
Reported-by: NBen Pfaff <blp@nicira.com>
Signed-off-by: NAndy Zhou <azhou@nicira.com>
Signed-off-by: NPravin B Shelar <pshelar@nicira.com>
      f53e3831
  21. 24 7月, 2014 2 次提交
  23. 17 7月, 2014 1 次提交
  25. 16 7月, 2014 1 次提交
    • T
      net: set name_assign_type in alloc_netdev() · c835a677
      由 Tom Gundersen 提交于 
      Extend alloc_netdev{,_mq{,s}}() to take name_assign_type as argument, and convert
all users to pass NET_NAME_UNKNOWN.

Coccinelle patch:

@@
expression sizeof_priv, name, setup, txqs, rxqs, count;
@@

(
-alloc_netdev_mqs(sizeof_priv, name, setup, txqs, rxqs)
+alloc_netdev_mqs(sizeof_priv, name, NET_NAME_UNKNOWN, setup, txqs, rxqs)
|
-alloc_netdev_mq(sizeof_priv, name, setup, count)
+alloc_netdev_mq(sizeof_priv, name, NET_NAME_UNKNOWN, setup, count)
|
-alloc_netdev(sizeof_priv, name, setup)
+alloc_netdev(sizeof_priv, name, NET_NAME_UNKNOWN, setup)
)

v9: move comments here from the wrong commit
Signed-off-by: NTom Gundersen <teg@jklm.no>
Reviewed-by: NDavid Herrmann <dh.herrmann@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      c835a677
  27. 08 7月, 2014 1 次提交
  29. 02 7月, 2014 1 次提交
  31. 01 7月, 2014 1 次提交
  33. 30 6月, 2014 3 次提交
  35. 05 6月, 2014 1 次提交
  37. 23 5月, 2014 13 次提交
  39. 17 5月, 2014 3 次提交