INSTALL: Describe how to use a separate build directory.

CC: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
CC: Andy Zhou <azhou@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Andy Zhou <azhou@nicira.com>
Acked-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
lib/classifier: Fix array splicing.

Array splicing was broken when multiple elements were being moved,
resulting in the priority order being mixed.  This came up when the
highest priority rule from a subtable was removed and the subtable
needed to be moved down the priority list by more than one position.

Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
datapath: Free skb(s) on recirculation error

This patch attempts to ensure that skb(s) are always freed (once)
if if an error occurs in execute_recirc(). It does so in two ways:

1. Ensure that execute_recirc() always consimes skb passed to it.
   Specifically, free the skb if the call to ovs_flow_extract() fails.

2. Return from the recirc case in execute_recirc() whenever
   the skb has not been cloned immediately above.

   This is only the case if the action is both the last action and the
   keep_skb parameter of execute_recirc is not true.  As it is the last
   action and the skb is consumed one way or another by execute_recirc() it
   is correct to return here.  In particular this avoids the possibility of
   the skb, which has been consumed by execute_recirc() from being freed.

   Conversely if this is not the case then the skb has been cloned
   and the clone has been consumed by execute_recirc().
   This leads to three sub-cases:
   * If execute_recirc() returned an error code then the original skb
     will be freed by the error handling code below the case statement in
     do_execute_actions().
   * If this is not the last action then action processing will continue,
     using the original skb.
   * If this is the last action then it must also be the case that keep_skb
     is true (otherwise the skb would not have been cloned). Thus
     do_execute_actions() will return without freeing the original skb.

Signed-off-by: Simon Horman <horms@verge.net.au>
[jesse: use kfree_skb instead of consume_skb on error path]
Signed-off-by: Jesse Gross <jesse@nicira.com>
ofproto-dpif-xlate: Fix null pointer dereference

actions (in xlate_actions__) would be NULL when xlate_actions()
is called from packet_out()->ofproto_dpif_execute_actions().
This causes a NULL pointer to be dereferenced when
ctx.xbridge->netflow is set.

Signed-off-by: Anoob Soman <anoob.soman@citrix.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
AUTHORS: Add Ashwin Swaminathan.

Signed-off-by: Ben Pfaff <blp@nicira.com>
ovs-ofctl: Fix port lookup and "ovs-ofctl" behavior for OpenFlow 1.3+.

ovs-ofctl supports using port names in commands that operate on ports.  It
does this by connecting to the switch, listing the ports, and picking out
the one with the specified name.  However, this didn't work properly for
OpenFlow 1.3+, because it always used an OFPT_FEATURES_REQUEST to list the
ports, and in OpenFlow 1.3+ the reply to this request does not include a
list of ports.  This commit fixes the problem (using code that previously
was just a fallback when there were too many ports to fit in an
OFPT_FEATURES_REPLY).

For similar reasons, "ovs-ofctl show" wasn't listing the switch's ports
when it connected to a switch over OpenFlow 1.3 or later.  This commit
fixes that bug also.

Signed-off-by: Ben Pfaff <blp@nicira.com>

Conflicts:
	utilities/ovs-ofctl.c
ofp-util: Fix definition of OFPUTIL_P_OF13_UP.

It should include OF1.4.

Signed-off-by: Ben Pfaff <blp@nicira.com>
ofp-msgs: New functions ofpmp_version() and ofpmp_decode_raw().

Each of these allows code in ofp-util.c to be simplified.

Signed-off-by: Ben Pfaff <blp@nicira.com>
ofp-util: Remove ofputil_count_phy_ports().

It's harder to calculate the number of ports in a given amount of space in
OpenFlow 1.4 and later, because the ofp_port structure becomes variable
length in those versions.  This commit removes the one caller, replacing
it by a version that doesn't need to know the number of ports in advance.

Signed-off-by: Ben Pfaff <blp@nicira.com>
ofp-util: Generalize functions for parsing OF1.3+ properties.

The main effect is to move these functions a little earlier in the file.

Also, OpenFlow 1.4 changed the table-features specific error codes to new
values that apply to all property sets, so this commit updates the error
code names and adds the appropriate OpenFlow 1.4+ codes.

Signed-off-by: Ben Pfaff <blp@nicira.com>
ofp-util: Reduce duplicate code.

ofputil_put_phy_port() and ofputil_append_port_desc_stats_reply() had a
lot of code duplication.  This reduces it: it deletes some specialized
code from ofputil_put_phy_port(), moving it into its caller
ofputil_put_switch_features_port() that actually needed it.  That change
then allows ofputil_append_port_desc_stats_reply() to become a simple
wrapper around ofputil_put_phy_port().

Signed-off-by: Ben Pfaff <blp@nicira.com>
ofp-util: Implement OpenFlow 1.4 port status and port desc reply messages.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Implement OpenFlow 1.4 port_mod messages.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Implement basic OpenFlow 1.4 table-mod message.

Vacancy events and eviction are not yet implemented--see OPENFLOW-1.1+.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Implement OpenFlow 1.4 port statistics.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Implement OpenFlow 1.4 queue statistics.

Signed-off-by: Ben Pfaff <blp@nicira.com>
ofp-util: Simplify ofputil_decode_switch_features().

It does not need to check the size, because the decoder in ofp-msgs.c
checks for a valid size.

Signed-off-by: Ben Pfaff <blp@nicira.com>
ofp-util: Remove ofputil_get_phy_port_size().

The size is not fixed for OpenFLow 1.4 and later, so it's a little
deceptive to return any particular value.  This function was only used in
one place, so move it inline there.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Remove --enable-of14 option because the implementation is now safe.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Add skeleton for OF1.5 support.

This allows OF1.5 prototyping to take place in a natural way.

Signed-off-by: Ben Pfaff <blp@nicira.com>