cascardo/ovs.git
9 years agoovsdb: Raise the jsonrpc server session limit
Andy Zhou [Tue, 24 Feb 2015 07:20:17 +0000 (23:20 -0800)]
ovsdb: Raise the jsonrpc server session limit

Raise the connection limit to allow larger number of concurrent
ovsdb-server connections. Note, ovsdb-server may not perform well
at the new limit. It is rather a prelude to further scaling tests and
optimizations.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agoovsdb: Warn about reaching max session limit
Andy Zhou [Tue, 24 Feb 2015 07:15:23 +0000 (23:15 -0800)]
ovsdb: Warn about reaching max session limit

Without the log message, it was not obvious why ovsdb-server no longer
accepts new connections when the session limit was reached. This patch
adds a log message to make it obvious.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Russell Bryant <rbryant@redhat.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agoFAQ.md: Mention Linux version that first could handle IPFIX flow monitoring.
Ben Pfaff [Sun, 22 Feb 2015 19:29:54 +0000 (11:29 -0800)]
FAQ.md: Mention Linux version that first could handle IPFIX flow monitoring.

I think that the critical commit is commit 4490108b4a5ada (openvswitch:
Allow OVS_USERSPACE_ATTR_USERDATA to be variable length.), which first
appeared in Linux 3.10.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Romain Lenglet <romain.lenglet@oracle.com>
9 years agostream-tcp: Remove extra initializer in pwindows_pstream_class.
Saurabh Shah [Tue, 24 Feb 2015 00:28:56 +0000 (16:28 -0800)]
stream-tcp: Remove extra initializer in pwindows_pstream_class.

commit c2e3cbaf ("stream: Eliminate pstream_set_dscp().") removed
the set_dscp() callback from pstream_class.

Signed-off-by: Saurabh Shah <ssaurabh@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoovs-docker: Use a different mechanism to check for commands.
Gurucharan Shetty [Mon, 23 Feb 2015 05:52:04 +0000 (21:52 -0800)]
ovs-docker: Use a different mechanism to check for commands.

Currently, the script uses '--version' option from different commands
to check for their availability. uuidgen on Centos6 has been reported
not to have the '--version' option causing failure in script invocation.

This commit looks for the utilities in $PATH instead. The code is
copied from build-aux/dist-docs.

Reported-by: Michael J. Smalley <michaeljsmalley@gmail.com>
Suggested-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agoovs-sandbox: Add -d option to run ovsdb-server under GDB
Andy Zhou [Fri, 20 Feb 2015 21:01:36 +0000 (13:01 -0800)]
ovs-sandbox: Add -d option to run ovsdb-server under GDB

Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agoovs-sandbox: Show the running program on xterm's title
Andy Zhou [Fri, 20 Feb 2015 20:55:25 +0000 (12:55 -0800)]
ovs-sandbox: Show the running program on xterm's title

When debugging multiple programs under GDB, it will be easier to
identify xterms with the program name displayed as title. Without
this patch, xterms will have the title of "gdb", which is the first
program the xterm executes. This change is useful for the next patch.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agodatapath: Account for "openvswitch: Add support for checksums on UDP tunnels."
Jesse Gross [Wed, 18 Feb 2015 01:46:09 +0000 (17:46 -0800)]
datapath: Account for "openvswitch: Add support for checksums on UDP tunnels."

Upstream commit:
    openvswitch: Add support for checksums on UDP tunnels.

    Currently, it isn't possible to request checksums on the outer UDP
    header of tunnels - the TUNNEL_CSUM flag is ignored. This adds
    support for requesting that UDP checksums be computed on transmit
    and properly reported if they are present on receive.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: b8693877 ("openvswitch: Add support for checksums on UDP tunnels.")
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Backport upstream Geneve implementation.
Jesse Gross [Fri, 6 Feb 2015 21:24:27 +0000 (13:24 -0800)]
datapath: Backport upstream Geneve implementation.

This resolves the differences between the OVS Geneve implementation
and the upstream kernel, particularly in the area of the split
between vport-geneve.c and the generic Geneve data plane.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Account for "udp: Do not require sock in udp_tunnel_xmit_skb"
Jesse Gross [Wed, 18 Feb 2015 01:28:58 +0000 (17:28 -0800)]
datapath: Account for "udp: Do not require sock in udp_tunnel_xmit_skb"

Upstream commit:
    udp: Do not require sock in udp_tunnel_xmit_skb

    The UDP tunnel transmit functions udp_tunnel_xmit_skb and
    udp_tunnel6_xmit_skb include a socket argument. The socket being
    passed to the functions (from VXLAN) is a UDP created for receive
    side. The only thing that the socket is used for in the transmit
    functions is to get the setting for checksum (enabled or zero).
    This patch removes the argument and and adds a nocheck argument
    for checksum setting. This eliminates the unnecessary dependency
    on a UDP socket for UDP tunnel transmit.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: d998f8ef ("udp: Do not require sock in udp_tunnel_xmit_skb")
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Account for "vlan: introduce *vlan_hwaccel_push_inside helpers"
Jesse Gross [Wed, 18 Feb 2015 00:06:42 +0000 (16:06 -0800)]
datapath: Account for "vlan: introduce *vlan_hwaccel_push_inside helpers"

Upstream commit:
    vlan: introduce *vlan_hwaccel_push_inside helpers

    Use them to push skb->vlan_tci into the payload and avoid code
    duplication.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: 5968250c ("vlan: introduce *vlan_hwaccel_push_inside helpers")
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Use additional common UDP functions for LISP.
Jesse Gross [Mon, 9 Feb 2015 19:35:44 +0000 (11:35 -0800)]
datapath: Use additional common UDP functions for LISP.

LISP can also take advantage of setup_udp_tunnel_sock() and
udp_tunnel_xmit_skb() to increase code reuse.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Account for "vxlan: Refactor vxlan driver to make use of the common UDP...
Jesse Gross [Sun, 8 Feb 2015 06:40:52 +0000 (22:40 -0800)]
datapath: Account for "vxlan: Refactor vxlan driver to make use of the common UDP tunnel functions."

Upstream commit:
    vxlan: Refactor vxlan driver to make use of the common UDP tunnel functions.

    Simplify vxlan implementation using common UDP tunnel APIs.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Using the upstream functions where available also has the side effect
of ensuring that we can use hardware offloads. The GBP changes forced
the use of the OVS emulated GSO path on kernels that lack GBP. This
resulted in the loss of VXLAN offload on earlier kernels. This restores
the offload support (for both GBP and non-GBP VXLAN).

Upstream: acbf74a7 ("vxlan: Refactor vxlan driver to make use of the common UDP tunnel functions.")
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Consistently set skb->inner_protocol for tunnels.
Jesse Gross [Wed, 18 Feb 2015 00:27:04 +0000 (16:27 -0800)]
datapath: Consistently set skb->inner_protocol for tunnels.

skb->inner_protocol is used by GSO and TSO for tunnels on new
kernels. Since we are setting up packets to be handled by the
kernel's GSO and not just our own, we need to initialize this
field properly.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Account for "udp-tunnel: Add a few more UDP tunnel APIs"
Jesse Gross [Sat, 7 Feb 2015 03:25:09 +0000 (19:25 -0800)]
datapath: Account for "udp-tunnel: Add a few more UDP tunnel APIs"

Upstream commit:
    udp-tunnel: Add a few more UDP tunnel APIs

    Added a few more UDP tunnel APIs that can be shared by UDP based
    tunnel protocol implementation. The main ones are highlighted below.

    setup_udp_tunnel_sock() configures UDP listener socket for
    receiving UDP encapsulated packets.

    udp_tunnel_xmit_skb() and upd_tunnel6_xmit_skb() transmit skb
    using UDP encapsulation.

    udp_tunnel_sock_release() closes the UDP tunnel listener socket.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: 6a93cc90 ("udp-tunnel: Add a few more UDP tunnel APIs")
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Enable OVS GSO to be used up to 3.18 if necessary.
Jesse Gross [Wed, 18 Feb 2015 22:27:17 +0000 (14:27 -0800)]
datapath: Enable OVS GSO to be used up to 3.18 if necessary.

There are two important GSO tunnel features that were introduced
after the 3.12 cutoff for our current out of tree GSO implementation:
 * 3.16 introduced support for outer UDP checksums.
 * 3.18 introduced support for verifying hardware support for protocols
   other than VXLAN.

In cases where these features are used, we should use OVS GSO to
ensure correct behavior. However, we also want to continue to use
kernel GSO or hardware TSO in existing situations. Therefore, this
extends the range of kernels where OVS GSO is available to 3.18 and
makes it easier to select which one to use.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Fix net exit.
Pravin B Shelar [Fri, 20 Feb 2015 22:59:47 +0000 (14:59 -0800)]
datapath: Fix net exit.

Open vSwitch allows moving internal vport to different namespace
while still connected to the bridge. But when namespace deleted
OVS does not detach these vports, that results in dangling
pointer to netdevice which causes kernel panic as follows.
This issue is fixed by detaching all ovs ports from the deleted
namespace at net-exit.

BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
IP: [<ffffffffa0aadaa5>] ovs_vport_locate+0x35/0x80 [openvswitch]
Oops: 0000 [#1] SMP
Call Trace:
 [<ffffffffa0aa6391>] lookup_vport+0x21/0xd0 [openvswitch]
 [<ffffffffa0aa65f9>] ovs_vport_cmd_get+0x59/0xf0 [openvswitch]
 [<ffffffff8167e07c>] genl_family_rcv_msg+0x1bc/0x3e0
 [<ffffffff8167e319>] genl_rcv_msg+0x79/0xc0
 [<ffffffff8167d919>] netlink_rcv_skb+0xb9/0xe0
 [<ffffffff8167deac>] genl_rcv+0x2c/0x40
 [<ffffffff8167cffd>] netlink_unicast+0x12d/0x1c0
 [<ffffffff8167d3da>] netlink_sendmsg+0x34a/0x6b0
 [<ffffffff8162e140>] sock_sendmsg+0xa0/0xe0
 [<ffffffff8162e5e8>] ___sys_sendmsg+0x408/0x420
 [<ffffffff8162f541>] __sys_sendmsg+0x51/0x90
 [<ffffffff8162f592>] SyS_sendmsg+0x12/0x20
 [<ffffffff81764ee9>] system_call_fastpath+0x12/0x17

Reported-by: Assaf Muller <amuller@redhat.com>
Fixes: 46df7b81454("openvswitch: Add support for network namespaces.")
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Reviewed-by: Thomas Graf <tgraf@noironetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: 7b4577a9da ("openvswitch: Fix net exit").
Acked-by: Andy Zhou <azhou@nicira.com>
9 years agoINSTALL.Docker: Fix malformed sentence.
Gurucharan Shetty [Fri, 20 Feb 2015 19:12:32 +0000 (11:12 -0800)]
INSTALL.Docker: Fix malformed sentence.

While adding support to Github markup language, the sentence had
gotten malformed.

Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agouserspace: Replace all uses of strncpy() by ovs_strlcpy().
Ben Pfaff [Fri, 20 Feb 2015 20:32:08 +0000 (12:32 -0800)]
userspace: Replace all uses of strncpy() by ovs_strlcpy().

strncpy() has a lot of pitfalls.  A while back we replaced all its uses by
calls to ovs_strlcpy() or ovs_strzcpy(), but some more have crept in.  This
commit fixes them.

Reported-by: Russell Bryant <rbryant@redhat.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
9 years agosocket-util: Use correct address family in set_dscp(), instead of guessing.
Ben Pfaff [Fri, 20 Feb 2015 19:30:50 +0000 (11:30 -0800)]
socket-util: Use correct address family in set_dscp(), instead of guessing.

The set_dscp() function, until now, tried to set the DSCP as IPv4 and as
IPv6. This worked OK on Linux, where an ENOPROTOOPT error made it really
clear which one was wrong, but FreeBSD uses EINVAL instead, which has
multiple meanings and which it therefore seems somewhat risky to ignore.
Instead, this commit just tries to set the correct address family's DSCP
option.

Tested by Alex Wang on FreeBSD 9.3.

Reported-by: Atanu Ghosh <atanu@acm.org>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Co-authored-by: Alex Wang <alexw@nicira.com>
Signed-off-by: Alex Wang <alexw@nicira.com>
Tested-by: Alex Wang <alexw@nicira.com>
9 years agostream: Eliminate pstream_set_dscp().
Ben Pfaff [Fri, 20 Feb 2015 16:44:48 +0000 (08:44 -0800)]
stream: Eliminate pstream_set_dscp().

This function is really of marginal utility.  This commit drops it and
makes the existing callers instead open a new pstream with the desired
dscp.

The ulterior motive here is that the set_dscp() function that actually sets
the DSCP on a socket really wants to know the address family (AF_INET vs.
AF_INET6).  We could plumb that down through the stream code, and that's
one reasonable option, but I thought that simply eliminating some calls
to set_dscp() where we don't already have the address family handy was
another reasonable way to go.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Alex Wang <alexw@nicira.com>
9 years agotimeval: Remove duplicate memset().
Russell Bryant [Fri, 20 Feb 2015 18:22:14 +0000 (13:22 -0500)]
timeval: Remove duplicate memset().

init_clock begins with a memset of 0 of the full clock struct.  This
memset at the end of a single struct member just makes extra sure that
it's set to 0, which is unnecessary.

Signed-off-by: Russell Bryant <rbryant@redhat.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoFAQ.md: Update LTS release version number from 1.9 to 2.3.
Ben Pfaff [Fri, 20 Feb 2015 17:01:17 +0000 (09:01 -0800)]
FAQ.md: Update LTS release version number from 1.9 to 2.3.

The 2.3 branch has been the long-term release for a while now, but somehow
we forgot to update the FAQ.

Reported-by: Kentaro Ebisawa <ebiken.g@gmail.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Gurucharan Shetty <gshetty@nicira.com>
9 years agodatapath: Account for "udp: Generic functions to set checksum"
Jesse Gross [Sat, 7 Feb 2015 03:24:32 +0000 (19:24 -0800)]
datapath: Account for "udp: Generic functions to set checksum"

Upstream commit:
    udp: Generic functions to set checksum

    Added udp_set_csum and udp6_set_csum functions to set UDP checksums
    in packets. These are for simple UDP packets such as those that might
    be created in UDP tunnels.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: af5fcba7 ("udp: Generic functions to set checksum")
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
9 years agodatapath: Use udp_sock_create() for LISP.
Jesse Gross [Fri, 6 Feb 2015 23:52:06 +0000 (15:52 -0800)]
datapath: Use udp_sock_create() for LISP.

Use the common udp_sock_create() for LISP, similar to what was
done for VXLAN.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
9 years agodatapath: Account for "vxlan: Call udp_sock_create"
Jesse Gross [Fri, 6 Feb 2015 23:42:04 +0000 (15:42 -0800)]
datapath: Account for "vxlan: Call udp_sock_create"

Upstream commit:
    vxlan: Call udp_sock_create

    In vxlan driver call common function udp_sock_create to create the
    listener UDP port.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: 3ee64f39 ("vxlan: Call udp_sock_create")
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
9 years agodatapath: Account for "udp: Add udp_sock_create for UDP tunnels to open listener...
Jesse Gross [Fri, 6 Feb 2015 23:16:20 +0000 (15:16 -0800)]
datapath: Account for "udp: Add udp_sock_create for UDP tunnels to open listener socket"

Upstream commit:
    udp: Add udp_sock_create for UDP tunnels to open listener socket

    Added udp_tunnel.c which can contain some common functions for UDP
    tunnels. The first function in this is udp_sock_create which is used
    to open the listener port for a UDP tunnel.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: 8024e028 ("udp: Add udp_sock_create for UDP tunnels to open listener socket")
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
9 years agodatapath: Remove compat vxlan_src_port().
Jesse Gross [Fri, 6 Feb 2015 23:19:38 +0000 (15:19 -0800)]
datapath: Remove compat vxlan_src_port().

vxlan_src_port() has been replaced with the more generic
udp_flow_src_port() upstream. We already have a backport for this and
it is used everywhere where this is needed, so we can remove the
dead vxlan_src_port() function.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
9 years agoFAQ: Update VXLAN references from draft to RFC7348
Kentaro Ebisawa [Fri, 20 Feb 2015 16:50:11 +0000 (08:50 -0800)]
FAQ: Update VXLAN references from draft to RFC7348

VXLAN is now RFC, so we better to change the pointer to it.

Signed-off-by: Kentaro Ebisawa <ebiken.g@gmail.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoovs-sandbox: Add an option to allow running ovs-vswitchd under gdb
Andy Zhou [Thu, 19 Feb 2015 01:17:33 +0000 (17:17 -0800)]
ovs-sandbox: Add an option to allow running ovs-vswitchd under gdb

It is some times useful to leverage the sandbox facility to experiment
and explore the internals of ovs-vswitchd.  Since GDB requires console
access for user inputs, this patch launch an xterm for GDB, The main
terminal continue to run the sub-shell as before. Exiting the sub-shell
will also kill the ovs-vswitchd under GDB (but not GDB itself currently)

Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agoovsdb-doc: Add license and copyright notice.
Ben Pfaff [Thu, 19 Feb 2015 19:09:22 +0000 (11:09 -0800)]
ovsdb-doc: Add license and copyright notice.

The copyright dates are taken from "git log --follow ovsdb/ovsdb-doc",
considering only Nicira authors' changes.  (Only one change was from
a non-Nicira author anyhow.)

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
9 years agoxml2nroff: New program to generate a manpage from XML input.
Ben Pfaff [Thu, 19 Feb 2015 19:08:53 +0000 (11:08 -0800)]
xml2nroff: New program to generate a manpage from XML input.

I really can't stand nroff syntax.  This makes it possible to install
nroff but write in a more sensible XML syntax.

The following commit adds the first user.

Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoovsdb-doc: Factor out nroff formatting into a separate Python module.
Ben Pfaff [Thu, 19 Feb 2015 18:59:12 +0000 (10:59 -0800)]
ovsdb-doc: Factor out nroff formatting into a separate Python module.

This will make it cleaner to add another build-time program that generates
nroff from XML.

Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoovsdb-doc: Get manpage name from the XML file instead of command line.
Ben Pfaff [Tue, 17 Feb 2015 23:52:54 +0000 (15:52 -0800)]
ovsdb-doc: Get manpage name from the XML file instead of command line.

This seems like a better place for it.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Gurucharan Shetty <gshetty@nicira.com>
9 years agoovsdb-doc: Flag an error when a table or a column is left undocumented.
Ben Pfaff [Thu, 19 Feb 2015 00:10:09 +0000 (16:10 -0800)]
ovsdb-doc: Flag an error when a table or a column is left undocumented.

This should make it harder to forget documentation.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Gurucharan Shetty <gshetty@nicira.com>
9 years agovtep: Document the ipaddr column in the Mcast_Macs_Local table.
Ben Pfaff [Thu, 19 Feb 2015 00:09:44 +0000 (16:09 -0800)]
vtep: Document the ipaddr column in the Mcast_Macs_Local table.

This had been overlooked.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Gurucharan Shetty <gshetty@nicira.com>
9 years agovswitch: Document columns that had been previously overlooked.
Ben Pfaff [Thu, 19 Feb 2015 00:09:21 +0000 (16:09 -0800)]
vswitch: Document columns that had been previously overlooked.

A fair number of columns had been overlooked.  This documents them.

The patch is smaller than it appears because this rearranges the STP and
RSTP documentation to group configuration, status, and statistics together
in the documentation for clarity.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Gurucharan Shetty <gshetty@nicira.com>
9 years agobridge: Publish error count in database's rstp_statistics.
Ben Pfaff [Thu, 19 Feb 2015 18:19:21 +0000 (10:19 -0800)]
bridge: Publish error count in database's rstp_statistics.

The lower layers count errors but until now nothing actually reported them.

Found by inspection.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Gurucharan Shetty <gshetty@nicira.com>
9 years agoovsdb-idlc: Constify 'char **'.
Russell Bryant [Thu, 19 Feb 2015 18:10:51 +0000 (13:10 -0500)]
ovsdb-idlc: Constify 'char **'.

Update the logic used in constify() to add const to a 'char **' while
still excluding all other cases of more than one level of indirection.

This results in adding const to a parameter of a generated setter
function where we're generally passing in array of constant strings.
As a result, this patch includes the other necessary fixes to the code
base to reflect the const addition.

Signed-off-by: Russell Bryant <rbryant@redhat.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoCodingStyle: recommend PEP 8 for Python code
Russell Bryant [Thu, 19 Feb 2015 18:03:53 +0000 (13:03 -0500)]
CodingStyle: recommend PEP 8 for Python code

Add a new section about Python code to the coding style document.
Suggest that all new Python code should adhere to the PEP 8 standard.
Also include a reference to tools that can quickly check code for
style issues.

Signed-off-by: Russell Bryant <rbryant@redhat.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoAUTHORS: Add Kenneth Duda.
Ben Pfaff [Thu, 19 Feb 2015 07:52:42 +0000 (23:52 -0800)]
AUTHORS: Add Kenneth Duda.

Ken co-authored commit add17b6945ab6 (vtep: Initial checkin of vtep
schema.) back in 2013 but I forgot to credit him in AUTHORS at the time.

Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoAUTHORS: Add Madhu Venugopal.
Ben Pfaff [Thu, 19 Feb 2015 07:50:18 +0000 (23:50 -0800)]
AUTHORS: Add Madhu Venugopal.

Madhu reported a bug last year, mentioned in commit 639b6d9c9093
(ovsdb-server: Document RFC 7047 extensions to ovsdb <error>s.) but I
forgot to credit him in AUTHORS at the time.

Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoofproto/bond: Fix a race condition in updating post recirculation rules
Andy Zhou [Thu, 12 Feb 2015 23:10:28 +0000 (15:10 -0800)]
ofproto/bond: Fix a race condition in updating post recirculation rules

When updating post recirc rules, rule management requires calls to
hmap APIs, which requires proper locking to ensure mutual exclsion in
accessing the hmap internal data structure. The locking currently is
missing from the output_normal() xlate path, thus causing
a race condition.

The race condition leads to segfault crash of ovs-vswitchd, with the
following stack trace:

The crash was found by adding and deleting bond interfaces repeatedly
with on-going traffic hitting the bond interfaces.  The same test was
ran over multiple days with this patch to ensure the same crash was
not seen.

The patch added the necessary lock annotation that would have caught
the bug.

Tested-by: Salvatore Cambria <salvatore.cambria@citrix.com>
Reported-by: Salvatore Cambria <salvatore.cambria@citrix.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agoAUTHORS: Add Mark Kavanagh.
Ben Pfaff [Sun, 15 Feb 2015 16:39:57 +0000 (08:39 -0800)]
AUTHORS: Add Mark Kavanagh.

Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoCONTRIBUTING.md: Strengthen testing recommendataions.
Mark Kavanagh [Tue, 10 Feb 2015 14:46:22 +0000 (14:46 +0000)]
CONTRIBUTING.md: Strengthen testing recommendataions.

Patches that modify existing code can break expected behaviour.
Flag this by testing the patch with 'make check' prior to submission.

Furthermore, it is not sufficient to only test patches that add files
using 'make distcheck'; the compile flags for this target could change
the definition of some functions (ovs_assert, for example), altering
the outcome of some unit tests. Rather, it is preferable to use a
combination of 'make distcheck' with 'make check' to cover all bases.

Signed-off-by: Mark Kavanagh <mark.b.kavanagh@intel.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoofproto: Add NXM_NX_TUN_GBP_ID and NXM_NX_TUN_GBP_FLAGS
Madhu Challa [Sat, 14 Feb 2015 14:13:17 +0000 (15:13 +0100)]
ofproto: Add NXM_NX_TUN_GBP_ID and NXM_NX_TUN_GBP_FLAGS

Introduces two new NXMs to represent VXLAN-GBP [0] fields.

  actions=load:0x10->NXM_NX_TUN_GBP_ID[],NORMAL
  tun_gbp_id=0x10,actions=drop

This enables existing VXLAN tunnels to carry security label
information such as a SELinux context to other network peers.

The values are carried to/from the datapath using the attribute
OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS.

[0] https://tools.ietf.org/html/draft-smith-vxlan-group-policy-00

Signed-off-by: Madhu Challa <challa@noironetworks.com>
Acked-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
9 years agoofp-parse: Correctly update bucket lists if they are empty.
Ben Pfaff [Fri, 13 Feb 2015 22:31:21 +0000 (14:31 -0800)]
ofp-parse: Correctly update bucket lists if they are empty.

Previously, list_moved() only worked with non-empty lists, but this was a
caveat that was really easy to miss.  parse_ofp_group_mod_file() had a bug
because it didn't honor that restriction.  This commit fixes the problem,
by modifying the list_moved() interface to be harder to use incorrectly
and then updating the callers.

Reported-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
9 years agonetdev-dpdk: set_miimon should return EOPNOTSUPP.
Mark D. Gray [Fri, 13 Feb 2015 10:00:58 +0000 (10:00 +0000)]
netdev-dpdk: set_miimon should return EOPNOTSUPP.

According to netdev-provider, this function should return
EOPNOTSUPP if not supported.

Signed-off-by: Mark D. Gray <mark.d.gray@intel.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agonetdev-dpdk: Fix typo
Mark D. Gray [Fri, 13 Feb 2015 10:00:57 +0000 (10:00 +0000)]
netdev-dpdk: Fix typo

Signed-off-by: Mark D. Gray <mark.d.gray@intel.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoofproto-dpif: Fix whitespace and typo
Mark D. Gray [Fri, 13 Feb 2015 10:00:56 +0000 (10:00 +0000)]
ofproto-dpif: Fix whitespace and typo

Signed-off-by: Mark D. Gray <mark.d.gray@intel.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agotests: Enable running parallel unit tests for Windows.
Gurucharan Shetty [Wed, 11 Feb 2015 16:04:34 +0000 (08:04 -0800)]
tests: Enable running parallel unit tests for Windows.

testsuite uses mkfifo in its job dispatcher that manages
parallel unit tests. MinGW does not have a mkfifo. This
results in unit tests running serially on Windows. Right
now it takes up to approximately 40 minutes to run all the
unit tests on Windows.

This commit provides a job dispatcher for MinGW that uses
temporary files instead of mkfifo to manage parallel jobs.
With this commit, on a Windows machine with 4 cores and with
8 parallel unit test sessions, it takes approximately 8
minutes to finish a unit test run.

Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
Acked-by: Eitan Eliahu <eliahue@vmware.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agodocs: Fix overlapping 'weak' edges in ovs-vswitchd.conf.db.5.
Shu Shen [Wed, 11 Feb 2015 05:20:12 +0000 (21:20 -0800)]
docs: Fix overlapping 'weak' edges in ovs-vswitchd.conf.db.5.

Multiple weak edges between nodes at the same rank overlaps with each other in
a dot/graphviz diagram. The vswitchd.pic used in ovs-vswitchd.conf.db.5 suffers
this problem.

Removing "constraint=false" allows graphviz to rank the nodes using the weak
edages as well so that the nodes at the ends of a weak edge won't be at the
same rank and allows mutlple 'weak' edges to be visible.

Signed-off-by: Shu Shen <shu.shen@radisys.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agomac-learning: Implement per-port MAC learning fairness.
Ben Pfaff [Thu, 12 Feb 2015 07:34:50 +0000 (23:34 -0800)]
mac-learning: Implement per-port MAC learning fairness.

In "MAC flooding", an attacker transmits an overwhelming number of frames
with unique Ethernet source address on a switch port.  The goal is to
force the switch to evict all useful MAC learning table entries, so that
its behavior degenerates to that of a hub, flooding all traffic.  In turn,
that allows an attacker to eavesdrop on the traffic of other hosts attached
to the switch, with all the risks that that entails.

Before this commit, the Open vSwitch "normal" action that implements its
standalone switch behavior (and that can be used by OpenFlow controllers
as well) was vulnerable to MAC flooding attacks.  This commit fixes the
problem by implementing per-port fairness for MAC table entries: when
the MAC table is at its maximum size, MAC table eviction always deletes an
entry from the port with the most entries.  Thus, MAC entries will never
be evicted from ports with only a few entries if a port with a huge number
of entries exists.

Controllers could introduce their own MAC flooding vulnerabilities into
OVS.  For a controller that adds destination MAC based flows to an OpenFlow
flow table as a reaction to "packet-in" events, such a bug, if it exists,
would be in the controller code itself and would need to be fixed in the
controller.  For a controller that relies on the Open vSwitch "learn"
action to add destination MAC based flows, Open vSwitch has existing
support for eviction policy similar to that implemented in this commit
through the "groups" column in the Flow_Table table documented in
ovs-vswitchd.conf.db(5); we recommend that users of "learn" not already
familiar with eviction groups to read that documentation.

In addition to implementation of per-port MAC learning fairness,
this commit includes some closely related changes:

    - Access to client-provided "port" data in struct mac_entry
      is now abstracted through helper functions, which makes it
      easier to ensure that the per-port data structures are maintained
      consistently.

    - The mac_learning_changed() function, which had become trivial,
      vestigial, and confusing, was removed.  Its functionality was folded
      into the new function mac_entry_set_port().

    - Many comments were added and improved; there had been a lot of
      comment rot in previous versions.

CERT: VU#784996
Reported-by: "Ronny L. Bull - bullrl" <bullrl@clarkson.edu>
Reported-at: http://www.irongeek.com/i.php?page=videos/derbycon4/t314-exploring-layer-2-network-security-in-virtualized-environments-ronny-l-bull-dr-jeanna-n-matthews
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Ethan Jackson <ethan@nicira.com>
9 years agodatapath: vxlan: Only set has-GBP bit in header if any other bits would be set
Thomas Graf [Thu, 12 Feb 2015 20:23:08 +0000 (21:23 +0100)]
datapath: vxlan: Only set has-GBP bit in header if any other bits would be set

    vxlan: Only set has-GBP bit in header if any other bits would be set

    This allows for a VXLAN-GBP socket to talk to a Linux VXLAN socket by
    not setting any of the bits.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: db79a621835e ("vxlan: Only set has-GBP bit in header if any other bits would be set")
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agolib/util.h: use types compatible with DWORD
Nithin Raju [Thu, 12 Feb 2015 18:53:10 +0000 (10:53 -0800)]
lib/util.h: use types compatible with DWORD

_BitScanForward() and friends are part of the Windows API and
take DWORD as parameter type. DWORD is defined to be 'unsigned long'
in Windows' header files.

We call into these functions from within lib/util.h. Currently, we
pass arguments of type uint32_t which is type defined to
'unsigned int'. This incompatiblity causes failures when we compile
the code as C++ code or with warnings enabled, when compiled as C
code.

The fix is to use 'unsigned long' rather than fixed size type.

Co-Authored-by: Linda Sun <lsun@vmware.com>
Signed-off-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Linda Sun <lsun@vmware.com>
Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
9 years agodaemon.at: Fix a race condition with windows service test.
Gurucharan Shetty [Wed, 11 Feb 2015 18:34:11 +0000 (10:34 -0800)]
daemon.at: Fix a race condition with windows service test.

OVS daemon service for Windows creates the pidfile and then
registers with the Windows services manager that the service
is running. There is a small time gap between the two steps.
So retry a few times in the test.

Also, provide a keyword for the test.

Reported-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
Acked-by: Nithin Raju <nithin@vmware.com>
Tested-by: Nithin Raju <nithin@vmware.com>
9 years agotimeval: Correctly report usage statistics in log_poll_interval().
Ben Pfaff [Wed, 11 Feb 2015 02:00:22 +0000 (18:00 -0800)]
timeval: Correctly report usage statistics in log_poll_interval().

Most of the information that timeval was reporting for long poll intervals
was comparing per-thread with per-process statistics, which yielded
nonsense a lot of the time.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Alex Wang <alexw@nicira.com>
9 years agonetdev-dpdk: Allow changing NON_PMD_CORE_ID for testing purpose.
Alex Wang [Wed, 4 Feb 2015 01:08:13 +0000 (17:08 -0800)]
netdev-dpdk: Allow changing NON_PMD_CORE_ID for testing purpose.

For testing purpose, developers may want to change the NON_PMD_CORE_ID
and use a different core for non-pmd threads.  Since the netdev-dpdk
module is hard-coded to assert the non-pmd threads using core 0, such
change will cause abortion of OVS.

This commit fixes the assertion and allows changing NON_PMD_CORE_ID.

Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agotest: Hide the name space clean up inside ADD_NAMESPACE macro
Andy Zhou [Sat, 7 Feb 2015 00:15:06 +0000 (16:15 -0800)]
test: Hide the name space clean up inside ADD_NAMESPACE macro

To reduce the complexity of writing kmod tests.

Suggested-by: Joe Stringer <joestringer@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.comugi
9 years agotest: Reverse the order of commands added by ON_EXIT macro
Andy Zhou [Sat, 7 Feb 2015 00:14:10 +0000 (16:14 -0800)]
test: Reverse the order of commands added by ON_EXIT macro

Executing clean-up commands in the reverse order of their addition
seems to be better for most of the cleanup situations. For example,
in kmod tests, we should remove name spaces before remove kernel
modules.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.comugi
9 years agoofproto: add support of OFPR_ACTION_SET as packet-in reason for OF1.4+
Shu Shen [Wed, 4 Feb 2015 06:24:18 +0000 (22:24 -0800)]
ofproto: add support of OFPR_ACTION_SET as packet-in reason for OF1.4+

This patch adds support for OFPR_ACTION_SET as the packet-in reason when
a Packet-In message is triggered by an output action within an
action-set. By default reason code OFPR_ACTION_SET is enabled for async
messages when Openflow 1.4+ is used. A test case is included.

Signed-off-by: Shu Shen <shu.shen@radisys.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoXenServer: Don't reset on xe-toolstack-restart
Jason Kölker [Sat, 7 Feb 2015 06:47:51 +0000 (06:47 +0000)]
XenServer: Don't reset on xe-toolstack-restart

With XenServer only 1 manager is configured in the pool, which may not
be the first manager returned from `get-manager` as it returns in
lexicographical order.

Signed-off-by: Jason Kölker <jason@koelker.net>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoXenServer: PEP8 Cleanup for openvswitch-cfg-update
Jason Kölker [Wed, 4 Feb 2015 23:12:30 +0000 (23:12 +0000)]
XenServer: PEP8 Cleanup for openvswitch-cfg-update

Signed-off-by: Jason Kölker <jason@koelker.net>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agotest: remove openvswitch kernel module on test failure
Andy Zhou [Thu, 5 Feb 2015 23:39:24 +0000 (15:39 -0800)]
test: remove openvswitch kernel module on test failure

Improve test failure handling.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Joe Stringer <joestringer@nicira.com>
9 years agotest: capture ping output into a file
Andy Zhou [Thu, 5 Feb 2015 23:36:01 +0000 (15:36 -0800)]
test: capture ping output into a file

The ping output can be useful. There is no down side in saving it.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Joe Stringer <joestringer@nicira.com>
9 years agotest: add name space removal on test failure
Andy Zhou [Thu, 5 Feb 2015 23:31:09 +0000 (15:31 -0800)]
test: add name space removal on test failure

Improves test failure handling. Remove name spaces that are no longer
needed so they to linger around before the next test starts.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Joe Stringer <joestringer@nicira.com>
9 years agotest: remove unnecessary leading blanks
Andy Zhou [Thu, 5 Feb 2015 23:29:38 +0000 (15:29 -0800)]
test: remove unnecessary leading blanks

This is mostly a style fix. The macro is used in the next patch to
add commands to the 'cleanup" file. This fix makes the 'cleanup' file
easier to read.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Joe Stringer <joestringer@nicira.com>
9 years agotest: remove unnecessary command lines
Andy Zhou [Thu, 5 Feb 2015 23:30:08 +0000 (15:30 -0800)]
test: remove unnecessary command lines

Those are not necessary and makes the test output file harder to read.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Joe Stringer <joestringer@nicira.com>
9 years agotest: remove namespace after ovs-vswitchd is stopped
Andy Zhou [Thu, 5 Feb 2015 23:19:41 +0000 (15:19 -0800)]
test: remove namespace after ovs-vswitchd is stopped

Remove namespaces also removes the ports in them, thus may
causing vswitch to generate warning log messages about not being
able find the port before it exits.

Remove namespaces after ovs-vswitchd exits improves test reliability.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Joe Stringer <joestringer@nicira.com>
9 years agotunnel: Provide framework for tunnel extensions for VXLAN-GBP and others
Thomas Graf [Fri, 6 Feb 2015 20:10:45 +0000 (21:10 +0100)]
tunnel: Provide framework for tunnel extensions for VXLAN-GBP and others

Supports a new "exts" field in the tunnel configuration which takes a
comma separated list of enabled extensions.

The only extension supported so far is GBP but this can be used to
enable RCO and possibly others as soon as the OVS datapath supports
them.

Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agodatapath: Allow building against 3.19.x
Thomas Graf [Fri, 6 Feb 2015 20:10:44 +0000 (21:10 +0100)]
datapath: Allow building against 3.19.x

Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Account for "vxlan: Eliminate dependency on UDP socket in transmit path"
Thomas Graf [Fri, 6 Feb 2015 20:10:44 +0000 (21:10 +0100)]
datapath: Account for "vxlan: Eliminate dependency on UDP socket in transmit path"

Excludes VXLAN_F_REMCSUM_TX bits as OVS currently doesn't support it.

Upstream commit:
    vxlan: Eliminate dependency on UDP socket in transmit path

    In the vxlan transmit path there is no need to reference the socket
    for a tunnel which is needed for the receive side. We do, however,
    need the vxlan_dev flags. This patch eliminate references
    to the socket in the transmit path, and changes VXLAN_F_UNSHAREABLE
    to be VXLAN_F_RCV_FLAGS. This mask is used to store the flags
    applicable to receive (GBP, CSUM6_RX, and REMCSUM_RX) in the
    vxlan_sock flags.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: af33c1adae1e ("vxlan: Eliminate dependency on UDP socket in transmit path")
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Support VXLAN Group Policy extension
Thomas Graf [Fri, 6 Feb 2015 20:10:44 +0000 (21:10 +0100)]
datapath: Support VXLAN Group Policy extension

Upstream commit:
    openvswitch: Support VXLAN Group Policy extension

    Introduces support for the group policy extension to the VXLAN virtual
    port. The extension is disabled by default and only enabled if the user
    has provided the respective configuration.

      ovs-vsctl add-port br0 vxlan0 -- \
         set Interface vxlan0 type=vxlan options:exts=gbp

    The configuration interface to enable the extension is based on a new
    attribute OVS_VXLAN_EXT_GBP nested inside OVS_TUNNEL_ATTR_EXTENSION
    which can carry additional extensions as needed in the future.

    The group policy metadata is stored as binary blob (struct ovs_vxlan_opts)
    internally just like Geneve options but transported as nested Netlink
    attributes to user space.

    Renames the existing TUNNEL_OPTIONS_PRESENT to TUNNEL_GENEVE_OPT with the
    binary value kept intact, a new flag TUNNEL_VXLAN_OPT is introduced.

    The attributes OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS and existing
    OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS are implemented mutually exclusive.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: 1dd144 ("openvswitch: Support VXLAN Group Policy extension")
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agoappveyor: Build windows kernel datapath.
Gurucharan Shetty [Fri, 6 Feb 2015 01:33:02 +0000 (17:33 -0800)]
appveyor: Build windows kernel datapath.

Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
Acked-by: Nithin Raju <nithin@vmware.com>
9 years agoUpdate INSTALL.Windows to build datapath
Nithin Raju [Fri, 6 Feb 2015 06:22:09 +0000 (22:22 -0800)]
Update INSTALL.Windows to build datapath

In a previous commit, support had been added to support building
the kernel datapath from command line. In this patch, we document
it.

Signed-off-by: Nithin Raju <nithin@vmware.com>
Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
9 years agoappveyor: Provide a autobuild service for Windows.
Gurucharan Shetty [Thu, 5 Feb 2015 17:49:26 +0000 (09:49 -0800)]
appveyor: Provide a autobuild service for Windows.

The appveyor.yml file added through this commit lets
AppVeyor auto build service to run a build of OVS on
Windows platform.

Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
9 years agoINSTALL.Windows: Don't specify the openssl version.
Gurucharan Shetty [Thu, 5 Feb 2015 17:33:30 +0000 (09:33 -0800)]
INSTALL.Windows: Don't specify the openssl version.

Windows openssl libraries are distributed through slproweb.
The maintainer there is very strict about retiring unsafe
versions of openssl and only lets the latest versions of
openssl to be downloaded. Instead of updating INSTALL.Windows
everytime there is a change in latest version, leave it to
user's discretion to download the latest version.

Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agodatapath: Fix missing symbols when required to use own VXLAN stack
Thomas Graf [Wed, 4 Feb 2015 15:45:06 +0000 (07:45 -0800)]
datapath: Fix missing symbols when required to use own VXLAN stack

Fixes an insufficient ifdef in compat/vxlan.c which caused required
symbols not to be included in the build. The declarations were properly
enabled so the build would succeed but the module would spit missing
symbols when being inserted.

The fix uses a new define USE_UPSTREAM_VXLAN which is set in the compat
header <net/vxlan.h> as required. This centralizes the decision when to
include VXLAN compat code to a single place which eases further changes.

Reported-by: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agoofproto: Initialize tunnel module earlier.
Jarno Rajahalme [Wed, 4 Feb 2015 20:59:04 +0000 (12:59 -0800)]
ofproto: Initialize tunnel module earlier.

The tunnel module can get called by the handler threads right after
they are started, so we need to call ofproto_tunnel_init() before
opening the backer.

Late initialization caused a spurious ovs-vswitchd handler thread
crash on start-up due to the tunnel module fat_rwlock not being
initialized yet.

Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agotravis: Add 32 bit (-m32) cross-compile build
Thomas Graf [Wed, 4 Feb 2015 22:14:05 +0000 (23:14 +0100)]
travis: Add 32 bit (-m32) cross-compile build

Inspired by Ben Pfaff's email on 32 bit build environment, this adds a
32bit build to the travis build matrix to catch alignment and padding
issues.

The 32 bit build is only enabled for non-DPDK builds as DPDK itself is
currently not capable to be compiled with -m32.

The build also has SSL disabled as the Ubuntu libssl-devel package is
not multiarch compatible on the travis build system.

Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agomcast-snoop: Add support to control Reports forwarding
Flavio Leitner [Thu, 11 Dec 2014 11:38:19 +0000 (09:38 -0200)]
mcast-snoop: Add support to control Reports forwarding

The RFC4541 section 2.1.1 item 1 allows the snooping switch
to provide an administrative control to allow Report messages
to be flooded to ports not connected to multicast routers.

Signed-off-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agomcast_snoop: make mcast_fport_bundle generic
Flavio Leitner [Thu, 11 Dec 2014 11:38:18 +0000 (09:38 -0200)]
mcast_snoop: make mcast_fport_bundle generic

The struct mcast_fport_bundle will be used for ports
forwarding Reports too, so make it generic.

Signed-off-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoovs-dpctl: Do not report pmd info for 'dpif-netlink' datapath.
Alex Wang [Mon, 2 Feb 2015 22:50:47 +0000 (14:50 -0800)]
ovs-dpctl: Do not report pmd info for 'dpif-netlink' datapath.

In 'ovs-dpctl dump-flows' output, we should only report the pmd
related info for 'dpif-netdev' datapath.  However, current
implementation also reports uninitialized pmd info for
'dpif-netlink' datapath, which is very confusing to users.

This commit fixes it.

Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agoovs-command-completion: Complete on file path by default.
Alex Wang [Mon, 2 Feb 2015 20:57:16 +0000 (12:57 -0800)]
ovs-command-completion: Complete on file path by default.

This commit makes the bash completion script complete on file
path when there is no completion available.  The unit tests
are also adjusted accordingly.

Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agoofp-util: Issue error when OFPGC_DELETE command includes buckets.
Ben Pfaff [Fri, 30 Jan 2015 22:20:52 +0000 (14:20 -0800)]
ofp-util: Issue error when OFPGC_DELETE command includes buckets.

An OFPGC_DELETE command deletes a whole group, including all of its
buckets, and so it doesn't make sense for the command itself to include any
specification of buckets.

ONF-JIRA: EXT-510
Signed-off-by: Ben Pfaff <blp@nicira.com>
9 years agoNEWS: Mention group support in version 2.1.
Ben Pfaff [Sun, 1 Feb 2015 21:50:40 +0000 (13:50 -0800)]
NEWS: Mention group support in version 2.1.

Someone asked about support and I realized that we forgot to mention it,
so do so belatedly.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
9 years agodatapath: update exact match lookup hash value to avoid hash collision
Andy Zhou [Tue, 3 Feb 2015 21:57:55 +0000 (13:57 -0800)]
datapath: update exact match lookup hash value to avoid hash collision

Currently, the exact match cache lookup uses 'skb->hash' as an index.
In most cases, this value will be the same for pre and post
recirculation lookup, threshing the exact match cache. This patch
avoid this hash collision by using the rehashed value, by mixing in
in the 'recirc_id', as the lookup index.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Account for "netlink: make nlmsg_end() and genlmsg_end() void"
Thomas Graf [Tue, 3 Feb 2015 20:53:36 +0000 (21:53 +0100)]
datapath: Account for "netlink: make nlmsg_end() and genlmsg_end() void"

genlmsg_end() no longer returns an error value. Not a problem as it
never returned an error code anyway.

Upstream: 053c09 ("netlink: make nlmsg_end() and genlmsg_end() void")
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Account for "genetlink: pass only network namespace to genl_has_listeners()"
Thomas Graf [Tue, 3 Feb 2015 20:53:36 +0000 (21:53 +0100)]
datapath: Account for "genetlink: pass only network namespace to genl_has_listeners()"

Upstream commit:
    genetlink: pass only network namespace to genl_has_listeners()

    There's no point to force the caller to know about the internal
    genl_sock to use inside struct net, just have them pass the network
    namespace. This doesn't really change code generation since it's
    an inline, but makes the caller less magic - there's never any
    reason to pass another socket.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: f8403a2 ("genetlink: pass only network namespace to genl_has_listeners()")
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Allow for any level of nesting in flow attributes
Thomas Graf [Tue, 3 Feb 2015 20:53:36 +0000 (21:53 +0100)]
datapath: Allow for any level of nesting in flow attributes

Upstream commit:
    openvswitch: Allow for any level of nesting in flow attributes

    nlattr_set() is currently hardcoded to two levels of nesting. This change
    introduces struct ovs_len_tbl to define minimal length requirements plus
    next level nesting tables to traverse the key attributes to arbitrary depth.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: 81bfe3 ("openvswitch: Allow for any level of nesting in flow attributes")
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Rename GENEVE_TUN_OPTS() to TUN_METADATA_OPTS()
Thomas Graf [Tue, 3 Feb 2015 20:53:36 +0000 (21:53 +0100)]
datapath: Rename GENEVE_TUN_OPTS() to TUN_METADATA_OPTS()

Backport of upstream commit:

    openvswitch: Rename GENEVE_TUN_OPTS() to TUN_METADATA_OPTS()

    Also factors out Geneve validation code into a new separate function
    validate_and_copy_geneve_opts().

    A subsequent patch will introduce VXLAN options. Rename the existing
    GENEVE_TUN_OPTS() to reflect its extended purpose of carrying generic
    tunnel metadata options.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: d91641d ("openvswitch: Rename GENEVE_TUN_OPTS() to TUN_METADATA_OPTS()")
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Account for "vxlan: add x-netns support"
Thomas Graf [Tue, 3 Feb 2015 20:53:35 +0000 (21:53 +0100)]
datapath: Account for "vxlan: add x-netns support"

Upstream commit:
    vxlan: add x-netns support

    This patch allows to switch the netns when packet is encapsulated or
    decapsulated.
    The vxlan socket is openned into the i/o netns, ie into the netns where
    encapsulated packets are received. The socket lookup is done into this netns to
    find the corresponding vxlan tunnel. After decapsulation, the packet is
    injecting into the corresponding interface which may stand to another netns.

    When one of the two netns is removed, the tunnel is destroyed.

    Configuration example:
    ip netns add netns1
    ip netns exec netns1 ip link set lo up
    ip link add vxlan10 type vxlan id 10 group 239.0.0.10 dev eth0 dstport 0
    ip link set vxlan10 netns netns1
    ip netns exec netns1 ip addr add 192.168.0.249/24 broadcast 192.168.0.255 dev vxlan10
    ip netns exec netns1 ip link set vxlan10 up

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: f01ec1c017de ("vxlan: add x-netns support")
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Account for "vxlan: Group Policy extension"
Thomas Graf [Tue, 3 Feb 2015 20:53:35 +0000 (21:53 +0100)]
datapath: Account for "vxlan: Group Policy extension"

Upstream commit:
    vxlan: Group Policy extension

    Implements supports for the Group Policy VXLAN extension [0] to provide
    a lightweight and simple security label mechanism across network peers
    based on VXLAN. The security context and associated metadata is mapped
    to/from skb->mark. This allows further mapping to a SELinux context
    using SECMARK, to implement ACLs directly with nftables, iptables, OVS,
    tc, etc.

    The group membership is defined by the lower 16 bits of skb->mark, the
    upper 16 bits are used for flags.

    SELinux allows to manage label to secure local resources. However,
    distributed applications require ACLs to implemented across hosts. This
    is typically achieved by matching on L2-L4 fields to identify the
    original sending host and process on the receiver. On top of that,
    netlabel and specifically CIPSO [1] allow to map security contexts to
    universal labels.  However, netlabel and CIPSO are relatively complex.
    This patch provides a lightweight alternative for overlay network
    environments with a trusted underlay. No additional control protocol
    is required.

               Host 1:                       Host 2:

          Group A        Group B        Group B     Group A
          +-----+   +-------------+    +-------+   +-----+
          | lxc |   | SELinux CTX |    | httpd |   | VM  |
          +--+--+   +--+----------+    +---+---+   +--+--+
          \---+---/                     \----+---/
              |                              |
          +---+---+                      +---+---+
          | vxlan |                      | vxlan |
          +---+---+                      +---+---+
              +------------------------------+

    Backwards compatibility:
    A VXLAN-GBP socket can receive standard VXLAN frames and will assign
    the default group 0x0000 to such frames. A Linux VXLAN socket will
    drop VXLAN-GBP  frames. The extension is therefore disabled by default
    and needs to be specifically enabled:

       ip link add [...] type vxlan [...] gbp

    In a mixed environment with VXLAN and VXLAN-GBP sockets, the GBP socket
    must run on a separate port number.

    Examples:
     iptables:
      host1# iptables -I OUTPUT -m owner --uid-owner 101 -j MARK --set-mark 0x200
      host2# iptables -I INPUT -m mark --mark 0x200 -j DROP

     OVS:
      # ovs-ofctl add-flow br0 'in_port=1,actions=load:0x200->NXM_NX_TUN_GBP_ID[],NORMAL'
      # ovs-ofctl add-flow br0 'in_port=2,tun_gbp_id=0x200,actions=drop'

    [0] https://tools.ietf.org/html/draft-smith-vxlan-group-policy
    [1] http://lwn.net/Articles/204905/

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: 351149 ("vxlan: Group Policy extension")
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Account for now exposed VXLAN definitions
Thomas Graf [Tue, 3 Feb 2015 20:53:35 +0000 (21:53 +0100)]
datapath: Account for now exposed VXLAN definitions

This brings the compat version of vxlan_udp_encap_recv() and
vxlan_xmit_skb() in line with upstream commit:

commit 3bf3947526c1053ddf2523f261395d682718f56c
Author: Tom Herbert <therbert@google.com>
Date:   Thu Jan 8 12:31:18 2015 -0800

    vxlan: Improve support for header flags

    This patch cleans up the header flags of VXLAN in anticipation of
    defining some new ones:

    - Move header related definitions from vxlan.c to vxlan.h
    - Change VXLAN_FLAGS to be VXLAN_HF_VNI (only currently defined flag)
    - Move check for unknown flags to after we find vxlan_sock, this
      assumes that some flags may be processed based on tunnel
      configuration
    - Add a comment about why the stack treating unknown set flags as an
      error instead of ignoring them

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: 3bf394 ("vxlan: Improve support for header flags")
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agodatapath: Account for "rename vlan_tx_* helpers since "tx" is misleading there"
Thomas Graf [Tue, 3 Feb 2015 20:53:35 +0000 (21:53 +0100)]
datapath: Account for "rename vlan_tx_* helpers since "tx" is misleading there"

Upstream commit:
    net: rename vlan_tx_* helpers since "tx" is misleading there

    The same macros are used for rx as well. So rename it.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: df8a39d ("net: rename vlan_tx_* helpers since "tx" is misleading there")
Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
9 years agoofproto-dpif: Revalidate when sFlow probability changes.
Ben Pfaff [Fri, 30 Jan 2015 21:36:34 +0000 (13:36 -0800)]
ofproto-dpif: Revalidate when sFlow probability changes.

Until now, when the sFlow selection probability changed, OVS failed to
immediately revalidate the flow table, delaying the new probability taking
effect.  This commit fixes the problem.

Reported-by: K 華 <k940545@hotmail.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
9 years agovlog: Fix "/dev/log" test
YAMAMOTO Takashi [Mon, 2 Feb 2015 02:57:05 +0000 (11:57 +0900)]
vlog: Fix "/dev/log" test

commit 7905aae3fc1633c2c44c8fdb9e9d3a3d6e63439b
("vlog: Don't fail syslog initialization in chroot.")
uses os.path.isfile("/dev/log"), which tests if the given path
is a regular file, to see if syslog can be usable.

However, /dev/log is not a regular file for platforms I looked at.
    * On Ubuntu 14.04 and CentOS 6.5, /dev/log is a socket
    * On NetBSD-6, /dev/log is a symlink to a socket

Replace the test with os.path.exists() so that it can work
as intended for these platforms.

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Acked-by: Gurucharan Shetty <gshetty@nicira.com>
9 years agominiflow: Fix miniflow push of L4 port numbers.
Jarno Rajahalme [Tue, 3 Feb 2015 02:06:50 +0000 (18:06 -0800)]
miniflow: Fix miniflow push of L4 port numbers.

Replace a 64 bit copy of L4 src/dst ports that was also
including additional packet params (e.g. TCP Seq Num). This
was later resulting in all packets from the flow missing in
the EMC.

Signed-off-by: Kevin Traynor <kevin.traynor@intel.com>
Reported-by: Ciara Loftus <ciara.loftus@intel.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
9 years agoovs-command-completion: Avoid using negative subscript.
Alex Wang [Sun, 1 Feb 2015 16:54:35 +0000 (08:54 -0800)]
ovs-command-completion: Avoid using negative subscript.

Negative subscript causes error in bash version 4.1.2(1)-release
(x86_64-redhat-linux-gnu).  This commit fixes it.

Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
9 years agoovs-command-completion: Autotest integration.
Alex Wang [Mon, 24 Nov 2014 19:15:45 +0000 (11:15 -0800)]
ovs-command-completion: Autotest integration.

This commit integrates the unit tests defined in
utilities/ovs-command-compgen-test.bash into 'make check'.
The tests will be skipped if the current shell is not bash.

Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>