| d3052bb5d306b29c1e7d9e5998c5ac4ca1ff0ca9 |
|
19-Nov-2014 |
Joe Stringer <joestringer@nicira.com> |
openvswitch: Don't validate IPv6 label masks.
When userspace doesn't provide a mask, OVS datapath generates a fully
unwildcarded mask for the flow by copying the flow and setting all bits
in all fields. For IPv6 label, this creates a mask that matches on the
upper 12 bits, causing the following error:
openvswitch: netlink: Invalid IPv6 flow label value (value=ffffffff, max=fffff)
This patch ignores the label validation check for masks, avoiding this
error.
Signed-off-by: Joe Stringer <joestringer@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| fecaef85f7188ad1822210e2c7a7625c9a32a8e4 |
|
11-Nov-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Validate IPv6 flow key and mask values.
Reject flow label key and mask values with invalid bits set.
Introduced by commit 3fdbd1ce11e5 ("openvswitch: add ipv6 'set'
action").
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
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| 19e7a3df7261c9b7ebced8163c383712d5b6ac6b |
|
11-Nov-2014 |
Daniele Di Proietto <ddiproietto@vmware.com> |
openvswitch: Fix NDP flow mask validation
match_validate() enforce that a mask matching on NDP attributes has also an
exact match on ICMPv6 type.
The ICMPv6 type, which is 8-bit wide, is stored in the 'tp.src' field of
'struct sw_flow_key', which is 16-bit wide.
Therefore, an exact match on ICMPv6 type should only check the first 8 bits.
This commit fixes a bug that prevented flows with an exact match on NDP field
from being installed
Introduced by commit 03f0d916aa03 ("openvswitch: Mega flow implementation").
Signed-off-by: Daniele Di Proietto <ddiproietto@vmware.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
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| f47de068f68db91b89e0d3335230d07e02da8727 |
|
17-Oct-2014 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Create right mask with disabled megaflows
If megaflows are disabled, the userspace does not send the netlink attribute
OVS_FLOW_ATTR_MASK, and the kernel must create an exact match mask.
sw_flow_mask_set() sets every bytes (in 'range') of the mask to 0xff, even the
bytes that represent padding for struct sw_flow, or the bytes that represent
fields that may not be set during ovs_flow_extract().
This is a problem, because when we extract a flow from a packet,
we do not memset() anymore the struct sw_flow to 0.
This commit gets rid of sw_flow_mask_set() and introduces mask_set_nlattr(),
which operates on the netlink attributes rather than on the mask key. Using
this approach we are sure that only the bytes that the user provided in the
flow are matched.
Also, if the parse_flow_mask_nlattrs() for the mask ENCAP attribute fails, we
now return with an error.
This bug is introduced by commit 0714812134d7dcadeb7ecfbfeb18788aa7e1eaac
("openvswitch: Eliminate memset() from flow_extract").
Reported-by: Alex Wang <alexw@nicira.com>
Signed-off-by: Daniele Di Proietto <ddiproietto@vmware.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| f5796684069e0c71c65bce6a6d4766114aec1396 |
|
04-Oct-2014 |
Jesse Gross <jesse@nicira.com> |
openvswitch: Add support for Geneve tunneling.
The Openvswitch implementation is completely agnostic to the options
that are in use and can handle newly defined options without
further work. It does this by simply matching on a byte array
of options and allowing userspace to setup flows on this array.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Singed-off-by: Ansis Atteka <aatteka@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| f0b128c1e2cc33ad104daf0f51a51e34f7763c5f |
|
04-Oct-2014 |
Jesse Gross <jesse@nicira.com> |
openvswitch: Wrap struct ovs_key_ipv4_tunnel in a new structure.
Currently, the flow information that is matched for tunnels and
the tunnel data passed around with packets is the same. However,
as additional information is added this is not necessarily desirable,
as in the case of pointers.
This adds a new structure for tunnel metadata which currently contains
only the existing struct. This change is purely internal to the kernel
since the current OVS_KEY_ATTR_IPV4_TUNNEL is simply a compressed version
of OVS_KEY_ATTR_TUNNEL that is translated at flow setup.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| 67fa034194bf82a3d5ca841759d921297daa63ca |
|
04-Oct-2014 |
Jesse Gross <jesse@nicira.com> |
openvswitch: Add support for matching on OAM packets.
Some tunnel formats have mechanisms for indicating that packets are
OAM frames that should be handled specially (either as high priority or
not forwarded beyond an endpoint). This provides support for allowing
those types of packets to be matched.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| 971427f353f3c42c8dcef62e7124440df68eb809 |
|
16-Sep-2014 |
Andy Zhou <azhou@nicira.com> |
openvswitch: Add recirc and hash action.
Recirc action allows a packet to reenter openvswitch processing.
currently openvswitch lookup flow for packet received and execute
set of actions on that packet, with help of recirc action we can
process/modify the packet and recirculate it back in openvswitch
for another pass.
OVS hash action calculates 5-tupple hash and set hash in flow-key
hash. This can be used along with recirculation for distributing
packets among different ports for bond devices.
For example:
OVS bonding can use following actions:
Match on: bond flow; Action: hash, recirc(id)
Match on: recirc-id == id and hash lower bits == a;
Action: output port_bond_a
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
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| 83c8df26a3b654871c0503fcf6eac61777e12ea1 |
|
16-Sep-2014 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: refactor ovs flow extract API.
OVS flow extract is called on packet receive or packet
execute code path. Following patch defines separate API
for extracting flow-key in packet execute code path.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Andy Zhou <azhou@nicira.com>
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| 1139e241ec436b9e9610c7a33ac5c6657f87fda1 |
|
05-May-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Compact sw_flow_key.
Minimize padding in sw_flow_key and move 'tp' top the main struct.
These changes simplify code when accessing the transport port numbers
and the tcp flags, and makes the sw_flow_key 8 bytes smaller on 64-bit
systems (128->120 bytes). These changes also make the keys for IPv4
packets to fit in one cache line.
There is a valid concern for safety of packing the struct
ovs_key_ipv4_tunnel, as it would be possible to take the address of
the tun_id member as a __be64 * which could result in unaligned access
in some systems. However:
- sw_flow_key itself is 64-bit aligned, so the tun_id within is
always
64-bit aligned.
- We never make arrays of ovs_key_ipv4_tunnel (which would force
every
second tun_key to be misaligned).
- We never take the address of the tun_id in to a __be64 *.
- Whereever we use struct ovs_key_ipv4_tunnel outside the
sw_flow_key,
it is in stack (on tunnel input functions), where compiler has full
control of the alignment.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| d92ab13558599cf73bbc269ce257fe16575d327a |
|
27-Mar-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Fix output of SCTP mask.
The 'output' argument of the ovs_nla_put_flow() is the one from which
the bits are written to the netlink attributes. For SCTP we
accidentally used the bits from the 'swkey' instead. This caused the
mask attributes to include the bits from the actual flow key instead
of the mask.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 23dabf88abb48a866fdb19ee08ebcf1ddd9b1840 |
|
27-Mar-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Remove 5-tuple optimization.
The 5-tuple optimization becomes unnecessary with a later per-NUMA
node stats patch. Remove it first to make the changes easier to
grasp.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 8c63ff09bddf944ab0033fea97aacfadfffa76de |
|
18-Feb-2014 |
Joe Perches <joe@perches.com> |
openvswitch: Use ether_addr_copy
It's slightly smaller/faster for some architectures.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
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| 2235ad1c3ac545bd8fc2c026be5be16d98b9a891 |
|
04-Feb-2014 |
Joe Perches <joe@perches.com> |
openvswitch: flow_netlink: Use pr_fmt to OVS_NLERR output
Add "openvswitch: " prefix to OVS_NLERR output
to match the other OVS_NLERR output of datapath.c
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| cc23ebf3bb4348fb022c0d25494307459bb2e539 |
|
03-Feb-2014 |
Daniele Di Proietto <daniele.di.proietto@gmail.com> |
openvswitch: Added (unsigned long long) cast in printf
This is necessary, since u64 is not unsigned long long
in all architectures: u64 could be also uint64_t.
Signed-off-by: Daniele Di Proietto <daniele.di.proietto@gmail.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
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| 7085130bab2f9c5b8d61bff73b01dc8195d0f974 |
|
23-Jan-2014 |
Daniele Di Proietto <daniele.di.proietto@gmail.com> |
openvswitch: use const in some local vars and casts
In few functions, const formal parameters are assigned or cast to
non-const.
These changes suppress warnings if compiled with -Wcast-qual.
Signed-off-by: Daniele Di Proietto <daniele.di.proietto@gmail.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
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| 11d6c461b32a3fb7e89f91ef7fa54c5446335a9c |
|
10-Dec-2013 |
Daniel Borkmann <dborkman@redhat.com> |
net: ovs: use kfree_rcu instead of rcu_free_{sw_flow_mask_cb,acts_callback}
As we're only doing a kfree() anyway in the RCU callback, we can
simply use kfree_rcu, which does the same job, and remove the
function rcu_free_sw_flow_mask_cb() and rcu_free_acts_callback().
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
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| e298e505700604c97e6a9edb21cebb080bdb91f6 |
|
30-Oct-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Per cpu flow stats.
With mega flow implementation ovs flow can be shared between
multiple CPUs which makes stats updates highly contended
operation. This patch uses per-CPU stats in cases where a flow
is likely to be shared (if there is a wildcard in the 5-tuple
and therefore likely to be spread by RSS). In other situations,
it uses the current strategy, saving memory and allocation time.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 5eb26b156e29eadcc21f73fb5d14497f0db24b86 |
|
23-Oct-2013 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: TCP flags matching support.
tcp_flags=flags/mask
Bitwise match on TCP flags. The flags and mask are 16-bit num‐
bers written in decimal or in hexadecimal prefixed by 0x. Each
1-bit in mask requires that the corresponding bit in port must
match. Each 0-bit in mask causes the corresponding bit to be
ignored.
TCP protocol currently defines 9 flag bits, and additional 3
bits are reserved (must be transmitted as zero), see RFCs 793,
3168, and 3540. The flag bits are, numbering from the least
significant bit:
0: FIN No more data from sender.
1: SYN Synchronize sequence numbers.
2: RST Reset the connection.
3: PSH Push function.
4: ACK Acknowledgement field significant.
5: URG Urgent pointer field significant.
6: ECE ECN Echo.
7: CWR Congestion Windows Reduced.
8: NS Nonce Sum.
9-11: Reserved.
12-15: Not matchable, must be zero.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
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| e64457191a259537bbbfaebeba9a8043786af96f |
|
04-Oct-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Restructure datapath.c and flow.c
Over the time datapath.c and flow.c has became pretty large files.
Following patch restructures functionality of component into three
different components:
flow.c: contains flow extract.
flow_netlink.c: netlink flow api.
flow_table.c: flow table api.
This patch restructures code without changing logic.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|