On June 18, 2015 at 2:39:31 PM, Shashank Shanbhag 
(shashank.shanb...@gmail.com(mailto:shashank.shanb...@gmail.com)) wrote:

> Hi Ben,
>  
> Please review when you get a chance. We would really like this to be in the 
> 2.4 release. :-)
>  
> This patch has the following changes suggested by you in the last review:
> 1. ovs-ofctl replace-flow and diff-flow queries the switch for visible tables
>  
> You also suggested that we move to using an array rather than a hash.
> http://openvswitch.org/pipermail/dev/2015-June/055998.html
>  
> An array of 255 pointers to classifiers would lead to 2040 bytes (64-bit 
> system). I'd like to avoid that especially when there are a handful of 
> tables.  

I believe you meant something like 2MB here?

--
Romain Lenglet

>  
>  
>  
> Please let me know,
> Thanks,
>  
> ---------------------------------------------------------
> Shashank Shanbhag,
> ---------------------------------------------------------  
> On Thu, Jun 18, 2015 at 2:31 PM, Shashank Shanbhag wrote:
> > From: Shashank Shanbhag  
> >  
> > Fix replace-flows and diff-flows to modify/diff flows in multiple tables.
> > Add a --tables(-T) option that allows the user to specify a comma-separated
> > list of table indexes to replace/diff.
> > Fix replace-flows to support OF1.3 and above.
> > Add/change ovs-ofctl replace-flows and diff-flows tests.
> >  
> > Signed-off-by: Shashank Shanbhag  
> > Acked-by: Romain Lenglet  
> > ---
> > AUTHORS | 1 +
> > NEWS | 7 +-
> > tests/ofproto-dpif.at(http://ofproto-dpif.at) | 6 +-
> > tests/ofproto.at(http://ofproto.at) | 2 +-
> > tests/ovs-ofctl.at(http://ovs-ofctl.at) | 141 ++++++++++----
> > utilities/ovs-ofctl.8.in(http://ovs-ofctl.8.in) | 20 +-
> > utilities/ovs-ofctl.c | 465 ++++++++++++++++++++++++++++++++++++++++-------
> > 7 files changed, 533 insertions(+), 109 deletions(-)
> >  
> > diff --git a/AUTHORS b/AUTHORS
> > index cebab48..96a00f1 100644
> > --- a/AUTHORS
> > +++ b/AUTHORS
> > @@ -155,6 +155,7 @@ Scott Lowe 
> > scott.l...@scottlowe.org(mailto:scott.l...@scottlowe.org)
> > Scott Mann sdm...@gmail.com(mailto:sdm...@gmail.com)
> > Selvamuthukumar smku...@merunetworks.com(mailto:smku...@merunetworks.com)
> > Shan Wei davids...@tencent.com(mailto:davids...@tencent.com)
> > +Shashank Shanbhag 
> > shashank.shanb...@gmail.com(mailto:shashank.shanb...@gmail.com)
> > Shih-Hao Li s...@nicira.com(mailto:s...@nicira.com)
> > Shu Shen shu.s...@radisys.com(mailto:shu.s...@radisys.com)
> > Simon Horman ho...@verge.net.au(mailto:ho...@verge.net.au)
> > diff --git a/NEWS b/NEWS
> > index 831bf5f..99545ad 100644
> > --- a/NEWS
> > +++ b/NEWS
> > @@ -108,7 +108,12 @@ v2.4.0 - xx xxx xxxx
> > openvswitch.ko but built and loaded automatically as individual kernel
> > modules (vport-*.ko).
> > - Support for STT tunneling.
> > -
> > + - ovs-ofctl: replace-flows and diff-flows now operate on multiple tables.
> > + - ovs-ofctl: --tables option added to replace-flows and diff-flows to 
> > allow
> > + specific tables to be replaced or diffed.
> > + - ovs-ofctl: replace-flows and diff-flows now query the switch for visible
> > + tables. Hidden tables are ignored.
> > + - ovs-ofctl works for OF version 1.3 and above.
> >  
> > v2.3.0 - 14 Aug 2014
> > ---------------------
> > diff --git a/tests/ofproto-dpif.at(http://ofproto-dpif.at) 
> > b/tests/ofproto-dpif.at(http://ofproto-dpif.at)
> > index bd1b21c..0567dab 100644
> > --- a/tests/ofproto-dpif.at(http://ofproto-dpif.at)
> > +++ b/tests/ofproto-dpif.at(http://ofproto-dpif.at)
> > @@ -3693,7 +3693,7 @@ priority=50 tcp ip_frag=no 
> > actions=move:OXM_OF_TCP_DST[[]]->OXM_OF_
> > priority=50 tcp ip_frag=first 
> > actions=move:OXM_OF_TCP_DST[[]]->OXM_OF_TCP_SRC[[]],output:5
> > priority=50 tcp ip_frag=later actions=output:6
> > ])
> > -AT_CHECK([ovs-ofctl replace-flows br0 flows.txt])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 replace-flows br0 flows.txt])
> >  
> > base_flow="in_port(90),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=128"
> > no_flow="$base_flow,frag=no),tcp(src=12345,dst=80)"
> > @@ -3742,7 +3742,7 @@ priority=50 tcp ip_frag=no 
> > actions=set_field:81->tcp_dst,output:4
> > priority=50 tcp ip_frag=first actions=set_field:81->tcp_dst,output:5
> > priority=50 tcp ip_frag=later actions=output:6
> > ])
> > -AT_CHECK([ovs-ofctl replace-flows br0 flows.txt])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 replace-flows br0 flows.txt])
> >  
> > base_flow="in_port(90),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=6,tos=0,ttl=128"
> > no_flow="$base_flow,frag=no),tcp(src=12345,dst=80)"
> > @@ -3856,7 +3856,7 @@ ovs-ofctl: actions are invalid with specified match 
> > (OFPBAC_MATCH_INCONSISTENT)
> > AT_DATA([flows.txt], [dnl
> > priority=75 tcp actions=load:42->OXM_OF_TCP_SRC[[0..7]],output:1
> > ])
> > -AT_CHECK([ovs-ofctl -O OpenFlow12 replace-flows br0 flows.txt])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 replace-flows br0 flows.txt])
> >  
> > AT_CHECK([ovs-appctl vlog/set dpif:dbg dpif_netdev:dbg])
> >  
> > diff --git a/tests/ofproto.at(http://ofproto.at) 
> > b/tests/ofproto.at(http://ofproto.at)
> > index 9c5f0bb..16bbf78 100644
> > --- a/tests/ofproto.at(http://ofproto.at)
> > +++ b/tests/ofproto.at(http://ofproto.at)
> > @@ -3066,7 +3066,7 @@ ${PERL} -e '
> > ') > flows.txt
> > AT_CHECK([ovs-ofctl add-flows br0 flows.txt])
> > # Check that multipart flow dumps work properly:
> > -AT_CHECK([ovs-ofctl diff-flows br0 flows.txt])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 diff-flows br0 flows.txt])
> > AT_CHECK([ovs-ofctl add-flow br0 in_port=1,cookie=3,actions=drop])
> > AT_CHECK([ovs-ofctl mod-flows br0 in_port=2,cookie=2,actions=output:2])
> > AT_CHECK([ovs-ofctl del-flows br0 cookie=1/-1])
> > diff --git a/tests/ovs-ofctl.at(http://ovs-ofctl.at) 
> > b/tests/ovs-ofctl.at(http://ovs-ofctl.at)
> > index 6c48569..8bb42e0 100644
> > --- a/tests/ovs-ofctl.at(http://ovs-ofctl.at)
> > +++ b/tests/ovs-ofctl.at(http://ovs-ofctl.at)
> > @@ -2622,15 +2622,15 @@ AT_CHECK([ovs-ofctl add-flows br0 add-flows.txt])
> > for i in `seq 0 1023`; do echo " dl_vlan=$i actions=drop"; done | sort > 
> > expout
> > AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | sed '/NXST_FLOW/d' | 
> > sort],
> > [0], [expout])
> > -AT_CHECK([ovs-ofctl diff-flows br0 add-flows.txt])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 diff-flows br0 add-flows.txt])
> >  
> > # Remove even-numbered flows, compare again.
> > for i in `seq 0 1023 2`; do echo "dl_vlan=$i"; done > del-flows.txt
> > AT_CHECK([ovs-ofctl del-flows br0 - < del-flows.txt])
> > for i in `seq 0 1023 2`; do echo "+dl_vlan=$i actions=drop"; done | sort > 
> > expout
> > -AT_CHECK([ovs-ofctl diff-flows br0 add-flows.txt | sort], [0], [expout])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 diff-flows br0 add-flows.txt | sort], 
> > [0], [expout])
> > for i in `seq 0 1023 2`; do echo "-dl_vlan=$i actions=drop"; done | sort > 
> > expout
> > -AT_CHECK([ovs-ofctl diff-flows add-flows.txt br0 | sort], [0], [expout])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 diff-flows add-flows.txt br0 | sort], 
> > [0], [expout])
> >  
> > OVS_VSWITCHD_STOP
> > AT_CLEANUP
> > @@ -2648,13 +2648,13 @@ OVS_VSWITCHD_START
> > AT_DATA([flows.txt], [actions=resubmit(,1)
> > ])
> > AT_CHECK([ovs-ofctl add-flows br0 flows.txt])
> > -AT_CHECK([ovs-ofctl diff-flows br0 flows.txt])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 diff-flows br0 flows.txt])
> > AT_CHECK([ovs-ofctl add-flow br0 
> > idle_timeout=60,dl_vlan=9,actions=output:1])
> > -AT_CHECK([ovs-ofctl diff-flows br0 flows.txt], [2], [dnl
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 diff-flows br0 flows.txt], [2], [dnl
> > -dl_vlan=9 idle_timeout=60 actions=output:1
> > ])
> > AT_CHECK([ovs-ofctl add-flow br0 
> > hard_timeout=120,cookie=1234,dl_vlan=9,actions=output:1])
> > -AT_CHECK([ovs-ofctl diff-flows flows.txt br0], [2], [dnl
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 diff-flows flows.txt br0], [2], [dnl
> > +dl_vlan=9 cookie=0x4d2 hard_timeout=120 actions=output:1
> > ])
> > OVS_VSWITCHD_STOP
> > @@ -2789,27 +2789,82 @@ AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip | 
> > sed '/ST_FLOW reply/d' | sort
> > OVS_VSWITCHD_STOP
> > AT_CLEANUP
> >  
> > -
> > dnl Importance parameter added in OF1.4.
> > dnl This validates whether flows with importance
> > dnl parameter are getting replaced with "replace-flows" or
> > dnl not by validating dump-flows output after replace with the expected 
> > output.
> > +dnl MOD_FLOW does not modify importance field - ONF EXT-496.
> >  
> > AT_SETUP([ovs-ofctl replace-flows with importance])
> > OVS_VSWITCHD_START
> >  
> > dnl Add flows to br0 with importance via OF1.4+. For more details refer 
> > "ovs-ofctl rule with importance" test case.
> > -for i in 1 2 3 4 5 6 7 8; do echo "dl_vlan=$i,importance=$i,actions=drop"; 
> > done > add-flows.txt
> > +for i in 1 2 3 4 5 6 7 8; do echo "dl_vlan=$i,importance=$i actions=drop"; 
> > done | sort > add-flows.txt
> > AT_CHECK([ovs-ofctl -O OpenFlow14 add-flows br0 add-flows.txt])
> >  
> > -dnl Replace some flows in the bridge.
> > -for i in 1 3 5 7; do echo "dl_vlan=$i,importance=`expr $i + 
> > 10`,actions=drop"; done > replace-flows.txt
> > +dnl Modify odd numbered flows. Leave even numbered ones alone.
> > +for i in 1 2 3 4 5 6 7 8; do if [[ `expr $i % 2` -eq 1 ]]; then 
> > importance=`expr $i + 10`; else importance=$i; fi; echo " 
> > importance=$importance, dl_vlan=$i actions=drop"; done | sort > 
> > replace-flows.txt
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 replace-flows br0 replace-flows.txt])
> > +
> > +dnl Dump the flows and compare them against expected output.
> > +
> > +for i in 1 2 3 4 5 6 7 8; do echo " importance=$i, dl_vlan=$i 
> > actions=drop"; done | sort > expout
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 dump-flows br0 | ofctl_strip | sed 
> > '/OFPST_FLOW/d' | sort], [0], [expout])
> > +
> > +dnl Replace some flows in the bridge. Delete flows that are not present in 
> > replace-flows.txt
> > +dnl for i in 1 3 5 7; do echo "dl_vlan=$i,importance=`expr $i + 10` 
> > actions=drop"; done | sort > replace-flows.txt
> > +
> > +for i in 1 3 5 7; do echo "dl_vlan=$i,importance=$i actions=drop"; done | 
> > sort > replace-flows.txt
> > AT_CHECK([ovs-ofctl -O OpenFlow14 replace-flows br0 replace-flows.txt])
> >  
> > dnl Dump them and compare the dump flows output against the expected output.
> > -for i in 1 2 3 4 5 6 7 8; do if [[ `expr $i % 2` -eq 1 ]]; then 
> > importance=`expr $i + 10`; else importance=$i; fi; echo " 
> > importance=$importance, dl_vlan=$i actions=drop"; done | sort > expout
> > -AT_CHECK([ovs-ofctl -O OpenFlow14 dump-flows br0 | ofctl_strip | sed 
> > '/OFPST_FLOW/d' | sort],
> > - [0], [expout])
> > +for i in 1 3 5 7; do echo " importance=$i, dl_vlan=$i actions=drop"; done 
> > | sort > expout
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 dump-flows br0 | ofctl_strip | sed 
> > '/OFPST_FLOW/d' | sort], [0], [expout])
> > +
> > +OVS_VSWITCHD_STOP
> > +AT_CLEANUP
> > +
> > +dnl --tables option added to ovs-ofctl "replace-flows" and "diff-flows".
> > +dnl This validates whether flows in table IDs specified with --tables
> > +dnl are getting replaced with "replace-flows" or not by validating
> > +dnl dump-flows output after replace with the expected output.
> > +
> > +AT_SETUP([ovs-ofctl replace-flows with --tables])
> > +OVS_VSWITCHD_START
> > +
> > +dnl Add flows to br0 for tables 1 to 8.
> > +for i in 1 2 3 4 5 6 7 8; do echo "table=$i,dl_vlan=$i,actions=drop"; done 
> > > add-flows.txt
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 add-flows br0 add-flows.txt])
> > +
> > +dnl Replace flows from tables 1,3,5,7 in the bridge.
> > +for i in 1 3 5 7; do echo 
> > "table=$i,ip,nw_dst=192.168.1.$i,dl_vlan=$i,actions=drop"; done > 
> > replace-flows.txt
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 replace-flows br0 replace-flows.txt 
> > --tables 1,5,7,3])
> > +
> > +dnl Generate the expout.
> > +for i in 1 2 3 4 5 6 7 8; do if [[ `expr $i % 2` -eq 1 ]]; then echo " 
> > table=$i, ip,dl_vlan=$i,nw_dst=192.168.1.$i actions=drop"; else echo " 
> > table=$i, dl_vlan=$i actions=drop"; fi; done | sort > expout
> > +dnl Dump the flows and check.
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 dump-flows br0 | ofctl_strip | sed 
> > '/OFPST_FLOW/d' | sort], [0], [expout])
> > +
> > +AT_DATA([oneflow.txt], [[
> > +table=4,ip,nw_dst=10.0.0.4,actions=output:100
> > +]])
> > +
> > +dnl Check that all flows except the ones in the replacement file are 
> > present after
> > +dnl replace-flows is executed.
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 del-flows br0])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 add-flows br0 add-flows.txt])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 replace-flows br0 oneflow.txt])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 dump-flows br0 | ofctl_strip | sed 
> > '/OFPST_FLOW/d' | sort], [0], [dnl
> > + table=4, ip,nw_dst=10.0.0.4 actions=output:100
> > +])
> > +
> > +dnl Check that tables that do not have flows are not replaced.
> > +dnl Check that existing flows in other tables are not replaced as well.
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 del-flows br0])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 add-flows br0 add-flows.txt])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 replace-flows br0 oneflow.txt --tables 
> > 100])
> > +for i in 1 2 3 4 5 6 7 8; do echo " table=$i, dl_vlan=$i actions=drop"; 
> > done | sort > expout
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 dump-flows br0 | ofctl_strip | sed 
> > '/OFPST_FLOW/d' | sort], [0], [expout])
> >  
> > OVS_VSWITCHD_STOP
> > AT_CLEANUP
> > @@ -2821,14 +2876,14 @@ AT_CHECK([ovs-appctl vlog/set vconn:dbg])
> >  
> > dnl Add flows to br0 with importance via OF1.4+, using an OF1.4+ bundle. 
> > For more details refer "ovs-ofctl rule with importance" test case.
> > for i in 1 2 3 4 5 6 7 8; do echo "dl_vlan=$i,importance=$i,actions=drop"; 
> > done > add-flows.txt
> > -AT_CHECK([ovs-ofctl --bundle add-flows br0 add-flows.txt])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 --bundle add-flows br0 add-flows.txt])
> >  
> > dnl Replace some flows in the bridge.
> > for i in 1 3 5 7; do echo "dl_vlan=$i,importance=`expr $i + 
> > 10`,actions=drop"; done > replace-flows.txt
> > -AT_CHECK([ovs-ofctl --bundle replace-flows br0 replace-flows.txt])
> > +AT_CHECK([ovs-ofctl -O OpenFlow14 --bundle replace-flows br0 
> > replace-flows.txt])
> >  
> > dnl Dump them and compare the dump flows output against the expected output.
> > -for i in 1 2 3 4 5 6 7 8; do if [[ `expr $i % 2` -eq 1 ]]; then 
> > importance=`expr $i + 10`; else importance=$i; fi; echo " 
> > importance=$importance, dl_vlan=$i actions=drop"; done | sort > expout
> > +for i in 1 3 5 7; do echo " importance=$i, dl_vlan=$i actions=drop"; done 
> > | sort > expout
> > AT_CHECK([ovs-ofctl -O OpenFlow14 dump-flows br0 | ofctl_strip | sed 
> > '/OFPST_FLOW/d' | sort],
> > [0], [expout])
> >  
> > @@ -2836,12 +2891,10 @@ dnl Check logs for OpenFlow trace
> > # Prevent race.
> > OVS_WAIT_UNTIL([test `grep -- "|vconn|DBG|unix: sent (Success): OFPST_FLOW 
> > reply" ovs-vswitchd.log | wc -l` -ge 2])
> > # AT_CHECK([sed -n "s/^.*\(|vconn|DBG|.*xid=.*:\).*$/\1/p" 
> > ovs-vswitchd.log], [0], [dnl
> > -AT_CHECK([print_vconn_debug | ofctl_strip], [0], [dnl
> > +AT_CHECK([print_vconn_debug | ofctl_strip | awk 'NF && 
> > $1!~/^(table|active|version)/'], [0], [dnl
> > vconn|DBG|unix: sent (Success): OFPT_HELLO (OF1.5):
> > - version bitmap: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06
> > vconn|DBG|unix: received: OFPT_HELLO (OF1.4):
> > - version bitmap: 0x01, 0x05
> > -vconn|DBG|unix: negotiated OpenFlow version 0x05 (we support version 0x06 
> > and earlier, peer supports versions 0x01, 0x05)
> > +vconn|DBG|unix: negotiated OpenFlow version 0x05 (we support version 0x06 
> > and earlier, peer supports version 0x05)
> > vconn|DBG|unix: received: OFPT_BUNDLE_CONTROL (OF1.4):
> > bundle_id=0 type=OPEN_REQUEST flags=atomic ordered
> > vconn|DBG|unix: sent (Success): OFPT_BUNDLE_CONTROL (OF1.4):
> > @@ -2875,47 +2928,61 @@ vconn|DBG|unix: received: OFPT_BUNDLE_CONTROL 
> > (OF1.4):
> > vconn|DBG|unix: sent (Success): OFPT_BUNDLE_CONTROL (OF1.4):
> > bundle_id=0 type=COMMIT_REPLY flags=0
> > vconn|DBG|unix: sent (Success): OFPT_HELLO (OF1.5):
> > - version bitmap: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06
> > vconn|DBG|unix: received: OFPT_HELLO (OF1.4):
> > - version bitmap: 0x01, 0x05
> > -vconn|DBG|unix: negotiated OpenFlow version 0x05 (we support version 0x06 
> > and earlier, peer supports versions 0x01, 0x05)
> > +vconn|DBG|unix: negotiated OpenFlow version 0x05 (we support version 0x06 
> > and earlier, peer supports version 0x05)
> > +vconn|DBG|unix: received: OFPST_TABLE request (OF1.4):
> > +vconn|DBG|unix: sent (Success): OFPST_TABLE reply (OF1.4):
> > vconn|DBG|unix: received: OFPST_FLOW request (OF1.4):
> > vconn|DBG|unix: sent (Success): OFPST_FLOW reply (OF1.4):
> > + importance=1, dl_vlan=1 actions=drop
> > + importance=2, dl_vlan=2 actions=drop
> > + importance=3, dl_vlan=3 actions=drop
> > + importance=4, dl_vlan=4 actions=drop
> > + importance=5, dl_vlan=5 actions=drop
> > + importance=6, dl_vlan=6 actions=drop
> > + importance=7, dl_vlan=7 actions=drop
> > + importance=8, dl_vlan=8 actions=drop
> > vconn|DBG|unix: received: OFPT_BUNDLE_CONTROL (OF1.4):
> > bundle_id=0 type=OPEN_REQUEST flags=atomic ordered
> > vconn|DBG|unix: sent (Success): OFPT_BUNDLE_CONTROL (OF1.4):
> > bundle_id=0 type=OPEN_REPLY flags=0
> > vconn|DBG|unix: received: OFPT_BUNDLE_ADD_MESSAGE (OF1.4):
> > bundle_id=0 flags=atomic ordered
> > -OFPT_FLOW_MOD (OF1.4): ADD dl_vlan=1 importance:11 actions=drop
> > +OFPT_FLOW_MOD (OF1.4): MOD_STRICT dl_vlan=1 actions=drop
> > vconn|DBG|unix: received: OFPT_BUNDLE_ADD_MESSAGE (OF1.4):
> > bundle_id=0 flags=atomic ordered
> > -OFPT_FLOW_MOD (OF1.4): ADD dl_vlan=3 importance:13 actions=drop
> > +OFPT_FLOW_MOD (OF1.4): MOD_STRICT dl_vlan=3 actions=drop
> > vconn|DBG|unix: received: OFPT_BUNDLE_ADD_MESSAGE (OF1.4):
> > bundle_id=0 flags=atomic ordered
> > -OFPT_FLOW_MOD (OF1.4): ADD dl_vlan=5 importance:15 actions=drop
> > +OFPT_FLOW_MOD (OF1.4): MOD_STRICT dl_vlan=5 actions=drop
> > vconn|DBG|unix: received: OFPT_BUNDLE_ADD_MESSAGE (OF1.4):
> > bundle_id=0 flags=atomic ordered
> > -OFPT_FLOW_MOD (OF1.4): ADD dl_vlan=7 importance:17 actions=drop
> > +OFPT_FLOW_MOD (OF1.4): MOD_STRICT dl_vlan=7 actions=drop
> > +vconn|DBG|unix: received: OFPT_BUNDLE_ADD_MESSAGE (OF1.4):
> > + bundle_id=0 flags=atomic ordered
> > +OFPT_FLOW_MOD (OF1.4): DEL_STRICT dl_vlan=2 actions=drop
> > +vconn|DBG|unix: received: OFPT_BUNDLE_ADD_MESSAGE (OF1.4):
> > + bundle_id=0 flags=atomic ordered
> > +OFPT_FLOW_MOD (OF1.4): DEL_STRICT dl_vlan=4 actions=drop
> > +vconn|DBG|unix: received: OFPT_BUNDLE_ADD_MESSAGE (OF1.4):
> > + bundle_id=0 flags=atomic ordered
> > +OFPT_FLOW_MOD (OF1.4): DEL_STRICT dl_vlan=6 actions=drop
> > +vconn|DBG|unix: received: OFPT_BUNDLE_ADD_MESSAGE (OF1.4):
> > + bundle_id=0 flags=atomic ordered
> > +OFPT_FLOW_MOD (OF1.4): DEL_STRICT dl_vlan=8 actions=drop
> > vconn|DBG|unix: received: OFPT_BUNDLE_CONTROL (OF1.4):
> > bundle_id=0 type=COMMIT_REQUEST flags=atomic ordered
> > vconn|DBG|unix: sent (Success): OFPT_BUNDLE_CONTROL (OF1.4):
> > bundle_id=0 type=COMMIT_REPLY flags=0
> > vconn|DBG|unix: sent (Success): OFPT_HELLO (OF1.5):
> > - version bitmap: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06
> > vconn|DBG|unix: received: OFPT_HELLO (OF1.4):
> > - version bitmap: 0x05
> > vconn|DBG|unix: negotiated OpenFlow version 0x05 (we support version 0x06 
> > and earlier, peer supports version 0x05)
> > vconn|DBG|unix: received: OFPST_FLOW request (OF1.4):
> > vconn|DBG|unix: sent (Success): OFPST_FLOW reply (OF1.4):
> > - importance=2, dl_vlan=2 actions=drop
> > - importance=4, dl_vlan=4 actions=drop
> > - importance=6, dl_vlan=6 actions=drop
> > - importance=8, dl_vlan=8 actions=drop
> > - importance=11, dl_vlan=1 actions=drop
> > - importance=13, dl_vlan=3 actions=drop
> > - importance=15, dl_vlan=5 actions=drop
> > - importance=17, dl_vlan=7 actions=drop
> > + importance=1, dl_vlan=1 actions=drop
> > + importance=3, dl_vlan=3 actions=drop
> > + importance=5, dl_vlan=5 actions=drop
> > + importance=7, dl_vlan=7 actions=drop
> > ])
> >  
> > OVS_VSWITCHD_STOP
> > diff --git a/utilities/ovs-ofctl.8.in(http://ovs-ofctl.8.in) 
> > b/utilities/ovs-ofctl.8.in(http://ovs-ofctl.8.in)
> > index 63c2ecc..1bf5041 100644
> > --- a/utilities/ovs-ofctl.8.in(http://ovs-ofctl.8.in)
> > +++ b/utilities/ovs-ofctl.8.in(http://ovs-ofctl.8.in)
> > @@ -328,7 +328,7 @@ Deletes entries from \fIswitch\fR's flow table. With 
> > only a
> > entries that match the specified flows. With \fB\-\-strict\fR,
> > wildcards are not treated as active for matching purposes.
> > .
> > -.IP "[\fB\-\-bundle\fR] [\fB\-\-readd\fR] \fBreplace\-flows \fIswitch 
> > file\fR"
> > +.IP "[\fB\-\-bundle\fR] [\fB\-\-readd\fR] [\fB\-\-tables \fltable-ids\fR] 
> > \fBreplace\-flows \fIswitch file\fR"
> > Reads flow entries from \fIfile\fR (or \fBstdin\fR if \fIfile\fR is
> > \fB\-\fR) and queries the flow table from \fIswitch\fR. Then it fixes
> > up any differences, adding flows from \fIflow\fR that are missing on
> > @@ -337,12 +337,21 @@ up any differences, adding flows from \fIflow\fR that 
> > are missing on
> > or timeouts differ in \fIfile\fR.
> > .
> > .IP
> > +With \fB\-\-tables\fR, \fBovs\-ofctl\fR only considers flows from the
> > +comma-separated table IDs specified. The tables are replaced
> > +in the specified order, e.g. (\fB\-\-tables 1,3,4,2\fR). The valid
> > +range of table IDs is 0 to 254. If a table ID is not specified,
> > +the table with that ID is ignored and no flows are replaced in that
> > +table in the switch. If \fB\-\-tables\fR is not specified, all tables,
> > +0 - 254, will be replaced.
> > +.
> > +.IP
> > With \fB\-\-readd\fR, \fBovs\-ofctl\fR adds all the flows from
> > \fIfile\fR, even those that exist with the same actions, cookie, and
> > timeout in \fIswitch\fR. This resets all the flow packet and byte
> > counters to 0, which can be useful for debugging.
> > .
> > -.IP "\fBdiff\-flows \fIsource1 source2\fR"
> > +.IP "[\fB\-\-tables \fltable-ids\fR] \fBdiff\-flows \fIsource1 source2\fR"
> > Reads flow entries from \fIsource1\fR and \fIsource2\fR and prints the
> > differences. A flow that is in \fIsource1\fR but not in \fIsource2\fR
> > is printed preceded by a \fB\-\fR, and a flow that is in \fIsource2\fR
> > @@ -357,6 +366,13 @@ file name. A name that contains \fB:\fR is considered 
> > to be a switch.
> > Otherwise, it is a file if a file by that name exists, a switch if
> > not.
> > .IP
> > +With \fB\-\-tables\fR, \fBovs\-ofctl\fR only considers flows from the
> > +comma-separated table IDs specified, e.g. (\fB\-\-tables 1,3,4,2\fR).
> > +The valid range of table IDs is 0 to 254. Unlike \fBreplace\-flows\fR,
> > +the order of table IDs is ignored. If an ID is not specified, the table
> > +with that ID is ignored and is diffed. If \fB\-\-tables\fR is not
> > +specified, all tables are diffed.
> > +.IP
> > For this command, an exit status of 0 means that no differences were
> > found, 1 means that an error occurred, and 2 means that some
> > differences were found.
> > diff --git a/utilities/ovs-ofctl.c b/utilities/ovs-ofctl.c
> > index 8df79b8..f0c05b9 100644
> > --- a/utilities/ovs-ofctl.c
> > +++ b/utilities/ovs-ofctl.c
> > @@ -13,7 +13,6 @@
> > * See the License for the specific language governing permissions and
> > * limitations under the License.
> > */
> > -
> > #include  
> > #include  
> > #include  
> > @@ -29,6 +28,7 @@
> > #include  
> > #include  
> >  
> > +#include "bitmap.h"
> > #include "byte-order.h"
> > #include "classifier.h"
> > #include "command-line.h"
> > @@ -37,6 +37,8 @@
> > #include "dirs.h"
> > #include "dynamic-string.h"
> > #include "fatal-signal.h"
> > +#include "hmap.h"
> > +#include "list.h"
> > #include "nx-match.h"
> > #include "odp-util.h"
> > #include "ofp-actions.h"
> > @@ -50,6 +52,7 @@
> > #include "ofproto/ofproto.h"
> > #include "openflow/nicira-ext.h"
> > #include "openflow/openflow.h"
> > +#include "openflow/openflow-common.h"
> > #include "dp-packet.h"
> > #include "packets.h"
> > #include "pcap-file.h"
> > @@ -67,6 +70,8 @@
> >  
> > VLOG_DEFINE_THIS_MODULE(ofctl);
> >  
> > +#define TABLE_IDS_BITMAP_LEN (OFPTT_MAX + 1)
> > +
> > /* --bundle: Use OpenFlow 1.4 bundle for making the flow table change 
> > atomic.
> > * NOTE: Also the flow mod will use OpenFlow 1.4, so the semantics may be
> > * different (see the comment in parse_options() for details).
> > @@ -102,6 +107,21 @@ static bool timestamp;
> > commands. */
> > static char *unixctl_path;
> >  
> > +/* -T, --tables: Comma-separated list of OF flow table IDs to replace 
> > flows in.
> > + * tables is a ovs_list of table IDs specified in --tables. */
> > +static struct ovs_list tables;
> > +
> > +/* bmtables is a bitmap where an offset is set if the corresponding table
> > + * ID needs to be operated on by replace-flows or diff-flows command.
> > + * If a table ID is hidden, the corresponding offset is unset even if 
> > specified
> > + * in -T, --tables. */
> > +static unsigned long *bmtables;
> > +
> > +/*
> > + * visible_tables is a bitmap where an offset is set if the corresponding 
> > table
> > + * is not a hidden table. */
> > +static unsigned long *visible_tables;
> > +
> > /* --sort, --rsort: Sort order. */
> > enum sort_order { SORT_ASC, SORT_DESC };
> > struct sort_criterion {
> > @@ -120,6 +140,154 @@ static bool recv_flow_stats_reply(struct vconn *, 
> > ovs_be32 send_xid,
> > struct ofpbuf **replyp,
> > struct ofputil_flow_stats *,
> > struct ofpbuf *ofpacts);
> > +
> > +static void perform_stats_transaction(struct vconn *, struct ofpbuf 
> > *request, bool dump);
> > +
> > +static int table_ids_list_and_bitmap_from_string(struct ovs_list *tables,
> > + unsigned long **bmtables,
> > + const char *s);
> > +
> > +static void update_bitmaps_with_supported_table_ids(struct vconn *vconn);
> > +
> > +static void populate_visible_tables_bitmap(struct vconn *vconn,
> > + const struct ofp_header *oh);
> > +
> > +bool print_diff_flows(struct classifier *cls);
> > +
> > + /*
> > + * An element in the list of table_ids. The list has table ids in the order
> > + * specified in --tables passed to replace-flows.
> > + */
> > +struct tables_node {
> > + struct ovs_list lnode;
> > + uint8_t table_id;
> > +};
> > +
> > +/* Holds the hmap_node with hash and the actual classifier. */
> > +struct hmap_table_classifier_node {
> > + struct hmap_node hnode;
> > + struct classifier cls;
> > + uint8_t table_id;
> > +};
> > +
> > +/*
> > + * Creates a classifier for table_id and adds it into the hmap. The 
> > table_id
> > + * is used as the hash.
> > + */
> > +static struct classifier *
> > +insert_new_table_classifier(struct hmap *ht_cls, uint8_t table_id)
> > +{
> > + struct hmap_table_classifier_node *ht_cls_node;
> > +
> > + ht_cls_node = xzalloc(sizeof(struct hmap_table_classifier_node));
> > + ht_cls_node->table_id = table_id;
> > + classifier_init(&ht_cls_node->cls, NULL);
> > + /* Use the table_id as the hash. */
> > + hmap_insert(ht_cls, &ht_cls_node->hnode, table_id);
> > + return &ht_cls_node->cls;
> > +}
> > +
> > +/*
> > + * Get the classifier for table_id. The table_id is used as the hash.
> > + */
> > +static struct classifier *
> > +get_table_classifier(struct hmap *ht_cls, uint8_t table_id)
> > +{
> > + struct hmap_table_classifier_node *ht_cls_node;
> > + HMAP_FOR_EACH_IN_BUCKET (ht_cls_node, hnode, table_id, ht_cls) {
> > + if (ht_cls_node->table_id == table_id) {
> > + return &ht_cls_node->cls;
> > + }
> > + }
> > + return NULL;
> > +}
> > +
> > +/*
> > + * Takes a string of comma-separated table IDs, creates a list
> > + * containing the table_ids in the order specified in the --tables 
> > argument.
> > + * Also creates a bitmap of specified table IDs.
> > + */
> > +static int
> > +table_ids_list_and_bitmap_from_string(struct ovs_list *tables,
> > + unsigned long **bmtables,
> > + const char *s)
> > +{
> > + char *stemp = xstrdup(s);
> > + char *tok, *temp;
> > + unsigned int table_id;
> > + struct tables_node *tnode;
> > +
> > + *bmtables = bitmap_allocate(TABLE_IDS_BITMAP_LEN);
> > +
> > + temp = stemp;
> > + while(stemp) {
> > + tok = strsep(&stemp, ",");
> > + if(!str_to_uint(tok, 10, &table_id)
> > + || table_id > TABLE_IDS_BITMAP_LEN-1) {
> > + LIST_FOR_EACH (tnode, lnode, tables) {
> > + free(tnode);
> > + }
> > + bitmap_free(*bmtables);
> > + free(temp);
> > + return -1;
> > + }
> > + tnode = xzalloc(sizeof(struct tables_node));
> > + tnode->table_id = table_id;
> > + list_push_back(tables, &tnode->lnode);
> > +
> > + bitmap_set(*bmtables, table_id, true);
> > + }
> > + free(temp);
> > + return 0;
> > +}
> > +
> > +/*
> > + * Make sure a bmtables offset is set only if the corresponding
> > + * table ID is supported (not hidden) in the switch. */
> > +static void
> > +update_bitmaps_with_supported_table_ids(struct vconn *vconn)
> > +{
> > + struct ofpbuf *request;
> > +
> > + visible_tables = bitmap_allocate(TABLE_IDS_BITMAP_LEN);
> > +
> > + if(list_is_empty(&tables)) {
> > + /* Initialize the bitmap bmtables and set all bits. */
> > + bmtables = bitmap_allocate1(TABLE_IDS_BITMAP_LEN);
> > + }
> > +
> > + request = ofpraw_alloc(OFPRAW_OFPST_TABLE_REQUEST, 
> > vconn_get_version(vconn), 0);
> > + perform_stats_transaction(vconn, request, false);
> > + bitmap_and(bmtables, visible_tables, TABLE_IDS_BITMAP_LEN);
> > +}
> > +
> > +/*
> > + * Get all visible table IDs and set offsets in visible_tables bitmap that
> > + * correspond to the table IDs. */
> > +static void
> > +populate_visible_tables_bitmap(struct vconn *vconn, const struct 
> > ofp_header *oh)
> > +{
> > + struct ofpbuf msg;
> > + ofpbuf_use_const(&msg, oh, ntohs(oh->length));
> > + ofpraw_pull_assert(&msg);
> > +
> > + for(;;) {
> > + struct ofputil_table_features features;
> > + struct ofputil_table_stats stats;
> > + int retval;
> > +
> > + retval = ofputil_decode_table_stats_reply(&msg, &stats, &features);
> > + if (retval) {
> > + if (retval != EOF) {
> > + ovs_fatal(0, "%s: Error while decoding table features: %s",
> > + vconn_get_name(vconn), ofperr_get_name(retval));
> > + }
> > + return;
> > + }
> > + bitmap_set(visible_tables, features.table_id, true);
> > + }
> > +}
> > +
> > int
> > main(int argc, char *argv[])
> > {
> > @@ -171,6 +339,7 @@ parse_options(int argc, char *argv[])
> > VLOG_OPTION_ENUMS
> > };
> > static const struct option long_options[] = {
> > + {"tables", required_argument, NULL, 'T'},
> > {"timeout", required_argument, NULL, 't'},
> > {"strict", no_argument, NULL, OPT_STRICT},
> > {"readd", no_argument, NULL, OPT_READD},
> > @@ -211,9 +380,13 @@ parse_options(int argc, char *argv[])
> > */
> > set_allowed_ofp_versions("OpenFlow10");
> >  
> > + /* Initialize ovs_list tables. */
> > + list_init(&tables);
> > +
> > for (;;) {
> > unsigned long int timeout;
> > int c;
> > + int retval = 0;
> >  
> > c = getopt_long(argc, argv, short_options, long_options, NULL);
> > if (c == -1) {
> > @@ -231,6 +404,17 @@ parse_options(int argc, char *argv[])
> > }
> > break;
> >  
> > + case 'T':
> > + retval = table_ids_list_and_bitmap_from_string(&tables,
> > + &bmtables,
> > + optarg);
> > + if (retval < 0) {
> > + ovs_fatal(0, "one of the passed table IDs %s for "
> > + "-T or --tables is invalid", optarg);
> > + }
> > + break;
> > +
> > +
> > case 'F':
> > allowed_protocols = ofputil_protocols_from_string(optarg);
> > if (!allowed_protocols) {
> > @@ -392,6 +576,7 @@ usage(void)
> > ofp_version_usage();
> > vlog_usage();
> > printf("\nOther options:\n"
> > + " -T, --tables=TABLES replace or diff flows in specified TABLES\n"
> > " --strict use strict match for flow commands\n"
> > " --readd replace flows that haven't changed\n"
> > " -F, --flow-format=FORMAT force particular flow format\n"
> > @@ -541,7 +726,7 @@ dump_trivial_transaction(const char *vconn_name, enum 
> > ofpraw raw)
> > }
> >  
> > static void
> > -dump_stats_transaction(struct vconn *vconn, struct ofpbuf *request)
> > +perform_stats_transaction(struct vconn *vconn, struct ofpbuf *request, 
> > bool dump)
> > {
> > const struct ofp_header *request_oh = request->data;
> > ovs_be32 send_xid = request_oh->xid;
> > @@ -562,9 +747,13 @@ dump_stats_transaction(struct vconn *vconn, struct 
> > ofpbuf *request)
> > recv_xid = ((struct ofp_header *) reply->data)->xid;
> > if (send_xid == recv_xid) {
> > enum ofpraw raw;
> > -
> > - ofp_print(stdout, reply->data, reply->size, verbosity + 1);
> > -
> > + if (dump) {
> > + ofp_print(stdout, reply->data, reply->size, verbosity + 1);
> > + }
> > + else {
> > + /* Update bmtables - set offset = table ID. */
> > + populate_visible_tables_bitmap(vconn, (struct ofp_header *) reply->data);
> > + }
> > ofpraw_decode(&raw, reply->data);
> > if (ofptype_from_ofpraw(raw) == OFPTYPE_ERROR) {
> > done = true;
> > @@ -584,6 +773,12 @@ dump_stats_transaction(struct vconn *vconn, struct 
> > ofpbuf *request)
> > }
> >  
> > static void
> > +dump_stats_transaction(struct vconn *vconn, struct ofpbuf *request)
> > +{
> > + perform_stats_transaction(vconn, request, true);
> > +}
> > +
> > +static void
> > dump_trivial_stats_transaction(const char *vconn_name, enum ofpraw raw)
> > {
> > struct ofpbuf *request;
> > @@ -2455,6 +2650,7 @@ fte_insert(struct classifier *cls, const struct match 
> > *match,
> > int priority, struct fte_version *version, int index)
> > {
> > struct fte *old, *fte;
> > + classifier_defer(cls);
> >  
> > fte = xzalloc(sizeof *fte);
> > cls_rule_init(&fte->rule, match, priority, CLS_MIN_VERSION);
> > @@ -2473,12 +2669,13 @@ fte_insert(struct classifier *cls, const struct 
> > match *match,
> > * with the specified 'index'. Returns the flow formats able to represent the
> > * flows that were read. */
> > static enum ofputil_protocol
> > -read_flows_from_file(const char *filename, struct classifier *cls, int 
> > index)
> > +read_flows_from_file(const char *filename, struct hmap *ht_cls, int index)
> > {
> > enum ofputil_protocol usable_protocols;
> > int line_number;
> > struct ds s;
> > FILE *file;
> > + struct classifier *cls;
> >  
> > file = !strcmp(filename, "-") ? stdin : fopen(filename, "r");
> > if (file == NULL) {
> > @@ -2488,7 +2685,7 @@ read_flows_from_file(const char *filename, struct 
> > classifier *cls, int index)
> > ds_init(&s);
> > usable_protocols = OFPUTIL_P_ANY;
> > line_number = 0;
> > - classifier_defer(cls);
> > +
> > while (!ds_get_preprocessed_line(&s, file, &line_number)) {
> > struct fte_version *version;
> > struct ofputil_flow_mod fm;
> > @@ -2510,10 +2707,27 @@ read_flows_from_file(const char *filename, struct 
> > classifier *cls, int index)
> > | OFPUTIL_FF_EMERG);
> > version->ofpacts = fm.ofpacts;
> > version->ofpacts_len = fm.ofpacts_len;
> > + if (fm.table_id == 0xff) {
> > + fm.table_id = 0x0;
> > + }
> > +
> > + if (!list_is_empty(&tables)
> > + && bmtables
> > + && !bitmap_is_set(bmtables, fm.table_id)) {
> > + /*
> > + * Ignore this flow if --tables is specified but does
> > + * not contain the table_id.
> > + */
> > + continue;
> > + }
> >  
> > + cls = get_table_classifier(ht_cls, fm.table_id);
> > + if (cls == NULL) {
> > + cls = insert_new_table_classifier(ht_cls, fm.table_id);
> > + }
> > fte_insert(cls, &fm.match, fm.priority, version, index);
> > }
> > - classifier_publish(cls);
> > +
> > ds_destroy(&s);
> >  
> > if (file != stdin) {
> > @@ -2582,8 +2796,9 @@ recv_flow_stats_reply(struct vconn *vconn, ovs_be32 
> > send_xid,
> > static void
> > read_flows_from_switch(struct vconn *vconn,
> > enum ofputil_protocol protocol,
> > - struct classifier *cls, int index)
> > + struct hmap *ht_cls, int index)
> > {
> > + struct classifier *cls;
> > struct ofputil_flow_stats_request fsr;
> > struct ofputil_flow_stats fs;
> > struct ofpbuf *request;
> > @@ -2593,16 +2808,29 @@ read_flows_from_switch(struct vconn *vconn,
> >  
> > fsr.aggregate = false;
> > match_init_catchall(&fsr.match);
> > - fsr.out_port = OFPP_ANY;
> > - fsr.table_id = 0xff;
> > +
> > + /* Only get tables that are not hidden. */
> > + update_bitmaps_with_supported_table_ids(vconn);
> > +
> > + if (list_size(&tables) == 1) {
> > + /* Only retrieve flows from the specified table. */
> > + struct tables_node * tnode;
> > + tnode = CONTAINER_OF(list_front(&tables), struct tables_node, lnode);
> > + fsr.table_id = tnode->table_id;
> > + }
> > + else {
> > + fsr.table_id = 0xff;
> > + }
> > fsr.cookie = fsr.cookie_mask = htonll(0);
> > + fsr.out_group = OFPG11_ANY;
> > + fsr.out_port = OFPP_ANY;
> > +
> > request = ofputil_encode_flow_stats_request(&fsr, protocol);
> > send_xid = ((struct ofp_header *) request->data)->xid;
> > send_openflow_buffer(vconn, request);
> >  
> > reply = NULL;
> > ofpbuf_init(&ofpacts, 0);
> > - classifier_defer(cls);
> > while (recv_flow_stats_reply(vconn, send_xid, &reply, &fs, &ofpacts)) {
> > struct fte_version *version;
> >  
> > @@ -2614,35 +2842,48 @@ read_flows_from_switch(struct vconn *vconn,
> > version->flags = 0;
> > version->ofpacts_len = fs.ofpacts_len;
> > version->ofpacts = xmemdup(fs.ofpacts, fs.ofpacts_len);
> > -
> > + if (!list_is_empty(&tables)
> > + && bmtables
> > + && !bitmap_is_set(bmtables, fs.table_id)) {
> > + /*
> > + * Ignore this flow if --tables is specified but does
> > + * not contain the table_id.
> > + */
> > + continue;
> > + }
> > + cls = get_table_classifier(ht_cls, fs.table_id);
> > + if (cls == NULL) {
> > + cls = insert_new_table_classifier(ht_cls, fs.table_id);
> > + }
> > fte_insert(cls, &fs.match, fs.priority, version, index);
> > }
> > - classifier_publish(cls);
> > ofpbuf_uninit(&ofpacts);
> > }
> >  
> > static void
> > -fte_make_flow_mod(const struct fte *fte, int index, uint16_t command,
> > - enum ofputil_protocol protocol, struct ovs_list *packets)
> > +fte_make_flow_mod(const struct fte *fte,
> > + int index, uint16_t command,
> > + enum ofputil_protocol protocol,
> > + struct ovs_list *packets, uint8_t table_id)
> > {
> > const struct fte_version *version = fte->versions[index];
> > struct ofputil_flow_mod fm;
> > struct ofpbuf *ofm;
> > -
> > minimatch_expand(&fte->rule.match, &fm.match);
> > fm.priority = fte->rule.priority;
> > fm.cookie = htonll(0);
> > fm.cookie_mask = htonll(0);
> > fm.new_cookie = version->cookie;
> > fm.modify_cookie = true;
> > - fm.table_id = 0xff;
> > + fm.table_id = table_id;
> > fm.command = command;
> > fm.idle_timeout = version->idle_timeout;
> > fm.hard_timeout = version->hard_timeout;
> > - fm.importance = version->importance;
> > fm.buffer_id = UINT32_MAX;
> > fm.out_port = OFPP_ANY;
> > + fm.out_group = OFPG_ANY;
> > fm.flags = version->flags;
> > + fm.importance = version->importance;
> > if (command == OFPFC_ADD || command == OFPFC_MODIFY ||
> > command == OFPFC_MODIFY_STRICT) {
> > fm.ofpacts = version->ofpacts;
> > @@ -2657,93 +2898,153 @@ fte_make_flow_mod(const struct fte *fte, int 
> > index, uint16_t command,
> > list_push_back(packets, &ofm->list_node);
> > }
> >  
> > +
> > +static void
> > +construct_flow_mods(struct ovs_list *requests,
> > + enum ofputil_protocol protocol,
> > + struct fte *fte,
> > + uint8_t table_id)
> > +{
> > + enum { FILE_IDX = 0, SWITCH_IDX = 1 };
> > + struct fte_version *file_ver = fte->versions[FILE_IDX];
> > + struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
> > +
> > + if (sw_ver && !file_ver) {
> > + fte_make_flow_mod(fte, SWITCH_IDX,
> > + OFPFC_DELETE_STRICT,
> > + protocol, requests,
> > + table_id);
> > + }
> > + else if (file_ver
> > + && (readd || !sw_ver)) {
> > + fte_make_flow_mod(fte, FILE_IDX, OFPFC_ADD,
> > + protocol, requests,
> > + table_id);
> > + }
> > + else if (file_ver
> > + && sw_ver && !fte_version_equals(sw_ver, file_ver)) {
> > + fte_make_flow_mod(fte, FILE_IDX,
> > + OFPFC_MODIFY_STRICT,
> > + protocol, requests,
> > + table_id);
> > + }
> > +}
> > +
> > +static void
> > +add_update_delete_switch_flows(struct ovs_list *requests,
> > + struct hmap *ht_cls,
> > + enum ofputil_protocol protocol)
> > +{
> > + struct classifier *cls;
> > + struct fte *fte;
> > +
> > + if (!list_is_empty(&tables)) {
> > + struct tables_node *tnode;
> > + LIST_FOR_EACH (tnode, lnode, &tables) {
> > + cls = get_table_classifier(ht_cls, tnode->table_id);
> > + if (cls == NULL) {
> > + /* Trying to get a flow that does not exist. */
> > + continue;
> > + }
> > + classifier_publish(cls);
> > + CLS_FOR_EACH (fte, rule, cls) {
> > + construct_flow_mods(requests, protocol, fte, tnode->table_id);
> > + }
> > + fte_free_all(cls);
> > + }
> > + }
> > + else {
> > + struct hmap_table_classifier_node *ht_cls_node;
> > + HMAP_FOR_EACH (ht_cls_node, hnode, ht_cls) {
> > + cls = get_table_classifier(ht_cls, ht_cls_node->table_id);
> > + if (cls == NULL) {
> > + /* Trying to get a flow that does not exist. */
> > + continue;
> > + }
> > + classifier_publish(cls);
> > + CLS_FOR_EACH (fte, rule, cls) {
> > + construct_flow_mods(requests,
> > + protocol,
> > + fte,
> > + ht_cls_node->table_id);
> > + }
> > + fte_free_all(cls);
> > + }
> > + }
> > +}
> > +
> > static void
> > ofctl_replace_flows(struct ovs_cmdl_context *ctx)
> > {
> > enum { FILE_IDX = 0, SWITCH_IDX = 1 };
> > enum ofputil_protocol usable_protocols, protocol;
> > - struct classifier cls;
> > +
> > + struct hmap ht_cls;
> > struct ovs_list requests;
> > struct vconn *vconn;
> > - struct fte *fte;
> >  
> > - classifier_init(&cls, NULL);
> > - usable_protocols = read_flows_from_file(ctx->argv[2], &cls, FILE_IDX);
> >  
> > - protocol = open_vconn(ctx->argv[1], &vconn);
> > - protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
> > + /* Initialize the hash map. */
> > + hmap_init(&ht_cls);
> >  
> > - read_flows_from_switch(vconn, protocol, &cls, SWITCH_IDX);
> > + /* Read flows from the file. */
> > + usable_protocols = read_flows_from_file(ctx->argv[2], &ht_cls, FILE_IDX);
> >  
> > - list_init(&requests);
> > + /* Setup connection to the switch. */
> > + protocol = open_vconn_for_flow_mod(ctx->argv[1], &vconn, 
> > usable_protocols);
> > + protocol = set_protocol_for_flow_dump(vconn, protocol, usable_protocols);
> >  
> > - /* Delete flows that exist on the switch but not in the file. */
> > - CLS_FOR_EACH (fte, rule, &cls) {
> > - struct fte_version *file_ver = fte->versions[FILE_IDX];
> > - struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
> > + /* Generate switch dump request. */
> > + read_flows_from_switch(vconn, protocol, &ht_cls, SWITCH_IDX);
> >  
> > - if (sw_ver && !file_ver) {
> > - fte_make_flow_mod(fte, SWITCH_IDX, OFPFC_DELETE_STRICT,
> > - protocol, &requests);
> > - }
> > - }
> > + list_init(&requests);
> >  
> > - /* Add flows that exist in the file but not on the switch.
> > - * Update flows that exist in both places but differ. */
> > - CLS_FOR_EACH (fte, rule, &cls) {
> > - struct fte_version *file_ver = fte->versions[FILE_IDX];
> > - struct fte_version *sw_ver = fte->versions[SWITCH_IDX];
> > + /* Delete flows that exist on the switch but not in the file.
> > + * Add flows that exist in the file but not on the switch.
> > + * Update the flows that exist in both places but differ.
> > + * If --tables is specified, iterate through tables,
> > + * perform deletion in order. */
> > + add_update_delete_switch_flows(&requests, &ht_cls, protocol);
> >  
> > - if (file_ver
> > - && (readd || !sw_ver || !fte_version_equals(sw_ver, file_ver))) {
> > - fte_make_flow_mod(fte, FILE_IDX, OFPFC_ADD, protocol, &requests);
> > - }
> > - }
> > if (bundle) {
> > bundle_transact(vconn, &requests, OFPBF_ORDERED | OFPBF_ATOMIC);
> > } else {
> > transact_multiple_noreply(vconn, &requests);
> > }
> > + hmap_destroy(&ht_cls);
> > vconn_close(vconn);
> > -
> > - fte_free_all(&cls);
> > }
> >  
> > static void
> > -read_flows_from_source(const char *source, struct classifier *cls, int 
> > index)
> > +read_flows_from_source(const char *source, struct hmap *ht_cls, int index)
> > {
> > struct stat s;
> > -
> > if (source[0] == '/' || source[0] == '.'
> > || (!strchr(source, ':') && !stat(source, &s))) {
> > - read_flows_from_file(source, cls, index);
> > + read_flows_from_file(source, ht_cls, index);
> > } else {
> > enum ofputil_protocol protocol;
> > struct vconn *vconn;
> >  
> > + /* Setup connection to switch and generate dump request. */
> > protocol = open_vconn(source, &vconn);
> > protocol = set_protocol_for_flow_dump(vconn, protocol, OFPUTIL_P_ANY);
> > - read_flows_from_switch(vconn, protocol, cls, index);
> > + read_flows_from_switch(vconn, protocol, ht_cls, index);
> > vconn_close(vconn);
> > }
> > }
> >  
> > -static void
> > -ofctl_diff_flows(struct ovs_cmdl_context *ctx)
> > +bool
> > +print_diff_flows(struct classifier *cls)
> > {
> > - bool differences = false;
> > - struct classifier cls;
> > struct ds a_s, b_s;
> > struct fte *fte;
> > -
> > - classifier_init(&cls, NULL);
> > - read_flows_from_source(ctx->argv[1], &cls, 0);
> > - read_flows_from_source(ctx->argv[2], &cls, 1);
> > + bool differences = false;
> >  
> > ds_init(&a_s);
> > ds_init(&b_s);
> > -
> > - CLS_FOR_EACH (fte, rule, &cls) {
> > + classifier_publish(cls);
> > + CLS_FOR_EACH (fte, rule, cls) {
> > struct fte_version *a = fte->versions[0];
> > struct fte_version *b = fte->versions[1];
> >  
> > @@ -2761,12 +3062,46 @@ ofctl_diff_flows(struct ovs_cmdl_context *ctx)
> > }
> > }
> > }
> > -
> > + fte_free_all(cls);
> > ds_destroy(&a_s);
> > ds_destroy(&b_s);
> > + return differences;
> > +}
> >  
> > - fte_free_all(&cls);
> > -
> > +static void
> > +ofctl_diff_flows(struct ovs_cmdl_context *ctx)
> > +{
> > + bool differences = false;
> > + struct classifier *cls;
> > + struct hmap ht_cls;
> > +
> > + hmap_init(&ht_cls);
> > + read_flows_from_source(ctx->argv[1], &ht_cls, 0);
> > + read_flows_from_source(ctx->argv[2], &ht_cls, 1);
> > +
> > + if (!list_is_empty(&tables)) {
> > + struct tables_node *tnode;
> > + LIST_FOR_EACH (tnode, lnode, &tables) {
> > + cls = get_table_classifier(&ht_cls, tnode->table_id);
> > + if (cls == NULL) {
> > + /* Trying to diff a flow that does not exist. */
> > + continue;
> > + }
> > + differences = print_diff_flows(cls);
> > + }
> > + }
> > + else {
> > + struct hmap_table_classifier_node *ht_cls_node;
> > + HMAP_FOR_EACH (ht_cls_node, hnode, &ht_cls) {
> > + cls = get_table_classifier(&ht_cls, ht_cls_node->table_id);
> > + if (cls == NULL) {
> > + /* Trying to diff a flow that does not exist. */
> > + continue;
> > + }
> > + differences = print_diff_flows(cls);
> > + }
> > + }
> > + hmap_destroy(&ht_cls);
> > if (differences) {
> > exit(2);
> > }
> > --
> > 2.3.5
> >  
>  


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