diff mbox series

[ovs-dev,v4,ovsdb,1/1] Add ovs-confctl utility for Local_Config db

Message ID 20220713030250.2634491-1-twilson@redhat.com
State Changes Requested
Headers show
Series [ovs-dev,v4,ovsdb,1/1] Add ovs-confctl utility for Local_Config db | expand

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ovsrobot/github-robot-_Build_and_Test success github build: passed
ovsrobot/intel-ovs-compilation fail test: fail

Commit Message

Terry Wilson July 13, 2022, 3:02 a.m. UTC
This adds ovs-confctl to configure DBs running the Local_Config
schema added in 6f24c2bc7.

Signed-off-by: Terry Wilson <twilson@redhat.com>
---
 debian/openvswitch-common.install  |   1 +
 debian/openvswitch-common.manpages |   1 +
 lib/.gitignore                     |   3 +
 lib/automake.mk                    |   8 +
 lib/ovsconf-idl.ann                |   9 +
 rhel/openvswitch.spec.in           |   2 +
 tests/automake.mk                  |   1 +
 tests/ovs-confctl.at               |  58 +++
 tests/testsuite.at                 |   1 +
 utilities/.gitignore               |   2 +
 utilities/automake.mk              |   8 +
 utilities/ovs-confctl.8.xml        | 213 +++++++++
 utilities/ovs-confctl.c            | 726 +++++++++++++++++++++++++++++
 13 files changed, 1033 insertions(+)
 create mode 100644 lib/ovsconf-idl.ann
 create mode 100644 tests/ovs-confctl.at
 create mode 100644 utilities/ovs-confctl.8.xml
 create mode 100644 utilities/ovs-confctl.c

Comments

0-day Robot July 13, 2022, 3:18 a.m. UTC | #1
Bleep bloop.  Greetings Terry Wilson, I am a robot and I have tried out your patch.
Thanks for your contribution.

I encountered some error that I wasn't expecting.  See the details below.


checkpatch:
WARNING: Line lacks whitespace around operator
#811 FILE: utilities/ovs-confctl.c:304:
  get-connection             print the connections\n\

WARNING: Line lacks whitespace around operator
#812 FILE: utilities/ovs-confctl.c:305:
  del-connection             delete the connections\n\

WARNING: Line lacks whitespace around operator
WARNING: Line lacks whitespace around operator
WARNING: Line lacks whitespace around operator
#813 FILE: utilities/ovs-confctl.c:306:
  [--inactivity-probe=MSECS]\n\

WARNING: Line lacks whitespace around operator
#814 FILE: utilities/ovs-confctl.c:307:
  set-connection TARGET...   set the list of connections to TARGET...\n\

WARNING: Line lacks whitespace around operator
WARNING: Line lacks whitespace around operator
#820 FILE: utilities/ovs-confctl.c:313:
  --db=DATABASE               connect to DATABASE\n\

WARNING: Line lacks whitespace around operator
WARNING: Line lacks whitespace around operator
#822 FILE: utilities/ovs-confctl.c:315:
  -t, --timeout=SECS          wait at most SECS seconds\n\

WARNING: Line lacks whitespace around operator
#823 FILE: utilities/ovs-confctl.c:316:
  --dry-run                   do not commit changes to database\n\

WARNING: Line lacks whitespace around operator
WARNING: Line lacks whitespace around operator
WARNING: Line lacks whitespace around operator
#830 FILE: utilities/ovs-confctl.c:323:
  --no-syslog                 equivalent to --verbose=conf_ctl:syslog:warn\n");

Lines checked: 1237, Warnings: 14, Errors: 0


Please check this out.  If you feel there has been an error, please email aconole@redhat.com

Thanks,
0-day Robot
diff mbox series

Patch

diff --git a/debian/openvswitch-common.install b/debian/openvswitch-common.install
index 3264ea53c..32acdb9b6 100644
--- a/debian/openvswitch-common.install
+++ b/debian/openvswitch-common.install
@@ -1,5 +1,6 @@ 
 etc/bash_completion.d/ovs-appctl-bashcomp.bash
 usr/bin/ovs-appctl
+usr/bin/ovs-confctl
 usr/bin/ovs-docker
 usr/bin/ovs-ofctl
 usr/bin/ovs-parse-backtrace
diff --git a/debian/openvswitch-common.manpages b/debian/openvswitch-common.manpages
index 95004122c..73c125af2 100644
--- a/debian/openvswitch-common.manpages
+++ b/debian/openvswitch-common.manpages
@@ -2,6 +2,7 @@  ovsdb/ovsdb-client.1
 ovsdb/ovsdb-tool.1
 utilities/bugtool/ovs-bugtool.8
 debian/tmp/usr/share/man/man8/ovs-appctl.8
+utilities/ovs-confctl.8
 utilities/ovs-ofctl.8
 debian/tmp/usr/share/man/man8/ovs-parse-backtrace.8
 debian/tmp/usr/share/man/man8/ovs-pki.8
diff --git a/lib/.gitignore b/lib/.gitignore
index ec9bdb092..c165deb72 100644
--- a/lib/.gitignore
+++ b/lib/.gitignore
@@ -8,6 +8,9 @@ 
 /ofp-actions.inc2
 /ofp-errors.inc
 /ofp-msgs.inc
+/ovsconf-idl.c
+/ovsconf-idl.h
+/ovsconf-idl.ovsidl
 /ovsdb-server-idl.c
 /ovsdb-server-idl.h
 /ovsdb-server-idl.ovsidl
diff --git a/lib/automake.mk b/lib/automake.mk
index 1d00cfa20..816fa1c99 100644
--- a/lib/automake.mk
+++ b/lib/automake.mk
@@ -426,6 +426,8 @@  nodist_lib_libopenvswitch_la_SOURCES = \
 	lib/dirs.c \
 	lib/ovsdb-server-idl.c \
 	lib/ovsdb-server-idl.h \
+	lib/ovsconf-idl.c \
+	lib/ovsconf-idl.h \
 	lib/vswitch-idl.c \
 	lib/vswitch-idl.h
 CLEANFILES += $(nodist_lib_libopenvswitch_la_SOURCES)
@@ -612,6 +614,12 @@  EXTRA_DIST += lib/vswitch-idl.ann
 lib/vswitch-idl.ovsidl: vswitchd/vswitch.ovsschema lib/vswitch-idl.ann
 	$(AM_V_GEN)$(OVSDB_IDLC) annotate $(srcdir)/vswitchd/vswitch.ovsschema $(srcdir)/lib/vswitch-idl.ann > $@.tmp && mv $@.tmp $@
 
+# local-config IDL
+OVSIDL_BUILT += lib/ovsconf-idl.c lib/ovsconf-idl.h lib/ovsconf-idl.ovsidl
+EXTRA_DIST += lib/ovsconf-idl.ann
+lib/ovsconf-idl.ovsidl: ovsdb/local-config.ovsschema lib/ovsconf-idl.ann
+	$(AM_V_GEN)$(OVSDB_IDLC) annotate $(srcdir)/ovsdb/local-config.ovsschema $(srcdir)/lib/ovsconf-idl.ann > $@.tmp && mv $@.tmp $@
+
 lib/dirs.c: lib/dirs.c.in Makefile
 	$(AM_V_GEN)($(ro_c) && sed < $(srcdir)/lib/dirs.c.in \
 		-e 's,[@]srcdir[@],$(srcdir),g' \
diff --git a/lib/ovsconf-idl.ann b/lib/ovsconf-idl.ann
new file mode 100644
index 000000000..6c948d3b9
--- /dev/null
+++ b/lib/ovsconf-idl.ann
@@ -0,0 +1,9 @@ 
+# -*- python -*-
+
+# This code, when invoked by "ovsdb-idlc annotate" (by the build
+# process), annotates local-config.ovsschema with additional data that give
+# the ovsdb-idl engine information about the types involved, so that
+# it can generate more programmer-friendly data structures.
+
+s["idlPrefix"] = "ovsconf_"
+s["idlHeader"] = "\"lib/ovsconf-idl.h\""
diff --git a/rhel/openvswitch.spec.in b/rhel/openvswitch.spec.in
index 2d8ff18bb..34a64f5a0 100644
--- a/rhel/openvswitch.spec.in
+++ b/rhel/openvswitch.spec.in
@@ -206,6 +206,7 @@  exit 0
 /etc/sysconfig/network-scripts/ifup-ovs
 /etc/sysconfig/network-scripts/ifdown-ovs
 /usr/bin/ovs-appctl
+/usr/bin/ovs-confctl
 /usr/bin/ovs-dpctl
 /usr/bin/ovs-dpctl-top
 /usr/bin/ovs-docker
@@ -240,6 +241,7 @@  exit 0
 %{_mandir}/man7/ovsdb-server.7*
 /usr/share/man/man8/ovs-appctl.8.gz
 /usr/share/man/man8/ovs-bugtool.8.gz
+/usr/share/man/man8/ovs-confctl.8.gz
 /usr/share/man/man8/ovs-ctl.8.gz
 /usr/share/man/man8/ovs-dpctl.8.gz
 /usr/share/man/man8/ovs-dpctl-top.8.gz
diff --git a/tests/automake.mk b/tests/automake.mk
index b29cb783e..48130cd5b 100644
--- a/tests/automake.mk
+++ b/tests/automake.mk
@@ -98,6 +98,7 @@  TESTSUITE_AT = \
 	tests/ovsdb-idl.at \
 	tests/ovsdb-lock.at \
 	tests/ovsdb-rbac.at \
+	tests/ovs-confctl.at \
 	tests/ovs-vsctl.at \
 	tests/ovs-xapi-sync.at \
 	tests/stp.at \
diff --git a/tests/ovs-confctl.at b/tests/ovs-confctl.at
new file mode 100644
index 000000000..fadc48130
--- /dev/null
+++ b/tests/ovs-confctl.at
@@ -0,0 +1,58 @@ 
+dnl OVSDB_INIT_LOCAL([$1])
+dnl
+dnl Creates an empty Local_Config database named $1
+m4_define([OVSDB_INIT_LOCAL],
+  [AT_CHECK(
+    [ovsdb-tool create $1 $abs_top_srcdir/ovsdb/local-config.ovsschema],
+    [0], [stdout], [ignore])])
+
+dnl OVS_CONFCTL_SETUP
+dnl
+dnl Creates an empty database in the current directory and then starts
+dnl an ovsdb-server on it for ovs-vsctl to connect to.
+m4_define([OVS_CONFCTL_SETUP],
+  [OVSDB_INIT_LOCAL([db])
+   AT_CHECK([ovsdb-server --detach --no-chdir --pidfile --remote=punix:db.sock\
+             --remote=db:Local_Config,Config,connections db >/dev/null 2>&1],
+            [0], [ignore], [ignore])
+   on_exit 'kill `cat ovsdb-server.pid`'])
+
+dnl OVS_CONFCTL_CLEANUP
+dnl
+dnl Kills off the database server.
+m4_define([OVS_CONFCTL_CLEANUP],
+          [OVS_APP_EXIT_AND_WAIT_BY_TARGET([ovsdb-server],
+                                           [ovsdb-server.pid])])
+
+dnl RUN_OVS_CONFCTL(COMMAND, ...)
+dnl
+dnl Executes each ovs-vsctl COMMAND.
+m4_define([RUN_OVS_CONFCTL],
+  [m4_foreach([command], [$@], [ovs-confctl -vreconnect:emer command
+])])
+
+
+m4_define([SET_CONNECTION],
+  [AT_CHECK([RUN_OVS_CONFCTL([set-connection $1])], [0], [ignore])])
+
+m4_define([GET_CONNECTION],
+  [AT_CHECK([RUN_OVS_CONFCTL([get-connection])], [0], [$1])])
+
+m4_define([DEL_CONNECTION],
+  [AT_CHECK([RUN_OVS_CONFCTL([del-connection])], [0], [ignore])])
+
+
+dnl ----------------------------------------------------------------------
+AT_BANNER([ovs-confctl unit tests])
+
+AT_SETUP([ovs-confctl connection lifecycle])
+AT_KEYWORDS([ovs-confctl])
+OVS_CONFCTL_SETUP
+SET_CONNECTION([punix:new_connection])
+AT_CHECK([test -S new_connection])
+GET_CONNECTION([punix:new_connection
+])
+DEL_CONNECTION()
+GET_CONNECTION([])
+OVS_CONFCTL_CLEANUP
+AT_CLEANUP
diff --git a/tests/testsuite.at b/tests/testsuite.at
index 58adfa09c..ecec7af57 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -66,6 +66,7 @@  m4_include([tests/ofproto-dpif.at])
 m4_include([tests/bridge.at])
 m4_include([tests/netdev-type.at])
 m4_include([tests/ovsdb.at])
+m4_include([tests/ovs-confctl.at])
 m4_include([tests/ovs-vsctl.at])
 m4_include([tests/ovs-xapi-sync.at])
 m4_include([tests/interface-reconfigure.at])
diff --git a/utilities/.gitignore b/utilities/.gitignore
index 0a11356d4..885440ffe 100644
--- a/utilities/.gitignore
+++ b/utilities/.gitignore
@@ -6,6 +6,8 @@ 
 /ovs-cfg-mod
 /ovs-cfg-mod.8
 /ovs-check-dead-ifs
+/ovs-confctl
+/ovs-confctl.8
 /ovs-testcontroller
 /ovs-testcontroller.8
 /ovs-ctl
diff --git a/utilities/automake.mk b/utilities/automake.mk
index eb57653a1..194b6c885 100644
--- a/utilities/automake.mk
+++ b/utilities/automake.mk
@@ -1,6 +1,7 @@ 
 bin_PROGRAMS += \
 	utilities/ovs-appctl \
 	utilities/ovs-testcontroller \
+	utilities/ovs-confctl \
 	utilities/ovs-dpctl \
 	utilities/ovs-ofctl \
 	utilities/ovs-vsctl
@@ -38,6 +39,7 @@  EXTRA_DIST += \
 	utilities/gdb/ovs_gdb.py \
 	utilities/ovs-appctl-bashcomp.bash \
 	utilities/ovs-check-dead-ifs.in \
+	utilities/ovs-confctl.8.xml \
 	utilities/ovs-ctl.in \
 	utilities/ovs-dev.py \
 	utilities/ovs-docker \
@@ -67,6 +69,7 @@  EXTRA_DIST += \
 	utilities/usdt-scripts/upcall_monitor.py
 MAN_ROOTS += \
 	utilities/ovs-testcontroller.8.in \
+	utilities/ovs-confctl.8 \
 	utilities/ovs-dpctl.8.in \
 	utilities/ovs-dpctl-top.8.in \
 	utilities/ovs-kmod-ctl.8 \
@@ -74,6 +77,7 @@  MAN_ROOTS += \
 	utilities/ovs-pcap.1.in \
 	utilities/ovs-vsctl.8.in
 CLEANFILES += \
+	utilities/ovs-confctl.8 \
 	utilities/ovs-ctl \
 	utilities/ovs-check-dead-ifs \
 	utilities/ovs-testcontroller.8 \
@@ -97,6 +101,7 @@  CLEANFILES += \
 
 man_MANS += \
 	utilities/ovs-testcontroller.8 \
+	utilities/ovs-confctl.8 \
 	utilities/ovs-dpctl.8 \
 	utilities/ovs-dpctl-top.8 \
 	utilities/ovs-kmod-ctl.8 \
@@ -107,6 +112,9 @@  man_MANS += \
 utilities_ovs_appctl_SOURCES = utilities/ovs-appctl.c
 utilities_ovs_appctl_LDADD = lib/libopenvswitch.la
 
+utilities_ovs_confctl_SOURCES = utilities/ovs-confctl.c
+utilities_ovs_confctl_LDADD = lib/libopenvswitch.la
+
 utilities_ovs_testcontroller_SOURCES = utilities/ovs-testcontroller.c
 utilities_ovs_testcontroller_LDADD = lib/libopenvswitch.la $(SSL_LIBS)
 
diff --git a/utilities/ovs-confctl.8.xml b/utilities/ovs-confctl.8.xml
new file mode 100644
index 000000000..ef872feba
--- /dev/null
+++ b/utilities/ovs-confctl.8.xml
@@ -0,0 +1,213 @@ 
+<?xml version="1.0" encoding="utf-8"?>
+<manpage program="ovs-confctl" section="8" title="ovs-confctl">
+    <h1>Name</h1>
+    <p>ovs-confctl -- OVS Local Configuration db management utility</p>
+
+    <h1>Synopsis</h1>
+    <p>
+      <code>ovs-confctl</code> [<var>options</var>] <var>command</var>
+      [<var>arg</var>...]
+    </p>
+
+    <h1>Description</h1>
+
+    <p>
+      The <code>ovs-confctl</code> program configures the
+      <code>Local_Config</code> database by providing a high-level interface
+      to its configuration database.  See <code>local-config</code>(5) for
+      comprehensive documentation of the database schema.
+    </p>
+
+    <p>
+      <code>ovs-confctl</code> connects to an <code>ovsdb-server</code> process
+      that maintains a Local_Config configuration database.  Using this
+      connection, it queries and possibly applies changes to the database,
+      depending on the supplied commands.
+    </p>
+
+    <p>
+      <code>ovs-confctl</code> can perform any number of commands in a single
+      run, implemented as a single atomic transaction against the database.
+    </p>
+
+    <p>
+      The <code>ovs-confctl</code> command line begins with global options (see
+      <code>OPTIONS</code> below for details).  The global options are followed
+      by one or more commands.  Each command should begin with <code>--</code>
+      by itself as a command-line argument, to separate it from the following
+      commands.  (The <code>--</code> before the first command is optional.)
+      The command itself starts with command-specific options, if any, followed
+      by the command name and any arguments.
+    </p>
+
+    <h1>Options</h1>
+
+    <p>
+      The options listed below affect the behavior of <code>ovs-confctl</code>
+      as a whole.  Some individual commands also accept their own options,
+      which are given just before the command name.  If the first command on
+      the command line has options, then those options must be separated from
+      the global options by <code>--</code>.
+    </p>
+
+    <dl>
+      <dt><code>--db</code> <var>database</var></dt>
+      <dd>
+          The OVSDB database remote to contact. Tthe default is
+          <code>unix:@RUNDIR@/db.sock</code>, but will likely need to be
+          passed to point to the specific DB you wish to connect to.
+      </dd>
+
+      <dt><code>--no-syslog</code></dt>
+      <dd>
+        <p>
+          By default, <code>ovs-confctl</code> logs its arguments and the
+          details of any changes that it makes to the system log.  This option
+          disables this logging.
+        </p>
+
+        <p>
+          This option is equivalent to
+          <code>--verbose=confctl:syslog:warn</code>.
+        </p>
+      </dd>
+
+      <dt><code>--oneline</code></dt>
+      <dd>
+        Modifies the output format so that the output for each command is
+        printed on a single line.  New-line characters that would otherwise
+        separate lines are printed as \fB\\n\fR, and any instances of \fB\\\fR
+        that would otherwise appear in the output are doubled.  Prints a blank
+        line for each command that has no output.  This option does not affect
+        the formatting of output from the <code>list</code> or
+        <code>find</code> commands; see <code>Table Formatting Options</code>
+        below.
+      </dd>
+
+      <dt><code>--dry-run</code></dt>
+      <dd>
+        Prevents <code>ovs-confctl</code> from actually modifying the database.
+      </dd>
+
+      <dt><code>-t <var>secs</var></code></dt>
+      <dt><code>--timeout=<var>secs</var></code></dt>
+      <dd>
+        By default, or with a <var>secs</var> of <code>0</code>,
+        <code>ovs-confctl</code> waits forever for the database's response.
+        This option limits runtime to approximately <var>secs</var> seconds.
+        If the timeout expires, <code>ovs-confctl</code> will exit with a
+        <code>SIGALRM</code> signal.  (A timeout would normally happen only if
+        the database cannot be contacted, or if the system is overloaded.)
+      </dd>
+    </dl>
+
+    <h2>Logging options</h2>
+    <xi:include href="lib/vlog.xml"
+                xmlns:xi="http://www.w3.org/2003/XInclude"/>
+
+    <h2>Table Formatting Options</h2>
+    These options control the format of output from the <code>list</code> and
+    <code>find</code> commands.
+    <xi:include href="lib/table.xml"
+                xmlns:xi="http://www.w3.org/2003/XInclude"/>
+
+    <h2>PKI Options</h2>
+    <p>
+      PKI configuration is required to use SSL for the connection to the
+      database.
+    </p>
+    <xi:include href="lib/ssl.xml" xmlns:xi="http://www.w3.org/2003/XInclude"/>
+    <xi:include href="lib/ssl-bootstrap.xml"
+                xmlns:xi="http://www.w3.org/2003/XInclude"/>
+
+    <h2>Other Options</h2>
+
+    <xi:include href="lib/common.xml"
+                xmlns:xi="http://www.w3.org/2003/XInclude"/>
+
+    <h1>Commands</h1>
+
+    <p>
+        The following sections describe the commands that
+        <code>ovs-confctl</code> supports.
+    </p>
+
+    <h2>Remote Connectivity Commands</h2>
+    <p>
+      These commands manipulate the <code>connections</code> column in the
+      <code>Config</code> table and rows in the <code>Connection</code>
+      table.  When <code>ovsdb-server</code> is configured to use the
+      <code>connections</code> column for OVSDB connections, this allows the
+      administrator to use <code>ovs-confctl</code> to configure database
+      connections.
+    </p>
+    <dl>
+      <dt><code>get-connection</code></dt>
+      <dd>
+      Prints the configured connection(s).
+      </dd>
+
+      <dt><code>del-connection</code></dt>
+      <dd>
+      Deletes the configured connection(s).
+      </dd>
+
+      <dt>[<code>--inactivity-probe=</code><var>msecs</var>]
+          <code>set-connection</code> <var>target</var>...
+      </dt>
+      <dd>
+        Sets the configured manager target or targets.  Use
+        <code>--inactivity-probe=</code><var>msecs</var> to override the
+        default idle connection inactivity probe time.  Use 0 to disable
+        inactivity probes.
+      </dd>
+    </dl>
+
+    <h2>Database Commands</h2>
+    <p>
+      These commands query and modify the contents of <code>ovsdb</code>
+      tables.  They are a slight abstraction of the <code>ovsdb</code>
+      interface and as such they operate at a lower level than other
+      <code>ovs-confctl</code> commands.
+    </p>
+
+    <p><var>Identifying Tables, Records, and Columns</var></p>
+
+    <p>
+      Each of these commands has a <var>table</var> parameter to identify a
+      table within the database.  Many of them also take a <var>record</var>
+      parameter that identifies a particular record within a table.  The
+      <var>record</var> parameter may be the UUID for a record, which may be
+      abbreviated to its first 4 (or more) hex digits, as long as that is
+      unique.  Many tables offer additional ways to identify records.  Some
+      commands also take <var>column</var> parameters that identify a
+      particular field within the records in a table.
+    </p>
+
+    <p>
+      For a list of tables and their columns, see <code>local-config</code>(5)
+      or see the table listing from the <code>--help</code> option.
+    </p>
+
+    <p>
+      Record names must be specified in full and with correct capitalization,
+      except that UUIDs may be abbreviated to their first 4 (or more) hex
+      digits, as long as that is unique within the table.  Names of tables and
+      columns are not case-sensitive, and <code>-</code> and <code>_</code> are
+      treated interchangeably.  Unique abbreviations of table and column names
+      are acceptable, e.g. <code>d</code> or <code>dhcp</code> is sufficient
+      to identify the <code>DHCP_Options</code> table.
+    </p>
+
+    <xi:include href="lib/db-ctl-base.xml"
+                xmlns:xi="http://www.w3.org/2003/XInclude"/>
+
+    <h1>Exit Status</h1>
+    <dl>
+      <dt>0</dt>
+      <dd>Successful program execution.</dd>
+
+      <dt>1</dt>
+      <dd>Usage, syntax, or network error.</dd>
+    </dl>
+</manpage>
diff --git a/utilities/ovs-confctl.c b/utilities/ovs-confctl.c
new file mode 100644
index 000000000..8ddc988a1
--- /dev/null
+++ b/utilities/ovs-confctl.c
@@ -0,0 +1,726 @@ 
+/*
+ * Copyright (c) 2009, 2010, 2011, 2012, 2014, 2015, 2016, 2017 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <config.h>
+
+#include <ctype.h>
+#include <errno.h>
+#include <float.h>
+#include <getopt.h>
+#include <inttypes.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "db-ctl-base.h"
+
+#include "command-line.h"
+#include "compiler.h"
+#include "openvswitch/dynamic-string.h"
+#include "fatal-signal.h"
+#include "hash.h"
+#include "ovsdb-data.h"
+#include "ovsdb-idl.h"
+#include "openvswitch/poll-loop.h"
+#include "process.h"
+#include "stream.h"
+#include "stream-ssl.h"
+#include "svec.h"
+#include "lib/ovsconf-idl.h"
+#include "table.h"
+#include "util.h"
+#include "openvswitch/vconn.h"
+#include "openvswitch/vlog.h"
+
+VLOG_DEFINE_THIS_MODULE(confctl);
+
+struct conf_ctl_context;
+
+/* --db: The database server to contact. */
+static const char *db;
+
+/* --oneline: Write each command's output as a single line? */
+static bool oneline;
+
+/* --dry-run: Do not commit any changes. */
+static bool dry_run;
+
+/* --timeout: Time to wait for a connection to 'db'. */
+static unsigned int timeout;
+
+/* Format for table output. */
+static struct table_style table_style = TABLE_STYLE_DEFAULT;
+
+/* The IDL we're using and the current transaction, if any.
+ * This is for use by conf_ctl_exit() only, to allow it to clean up.
+ * Other code should use its context arguments. */
+static struct ovsdb_idl *the_idl;
+static struct ovsdb_idl_txn *the_idl_txn;
+
+OVS_NO_RETURN static void conf_ctl_exit(int status);
+static void conf_ctl_cmd_init(void);
+OVS_NO_RETURN static void usage(void);
+static void parse_options(int argc, char *argv[], struct shash *local_options);
+static void run_prerequisites(struct ctl_command[], size_t n_commands,
+                              struct ovsdb_idl *);
+static bool do_conf_ctl(const char *args, struct ctl_command *, size_t n,
+                        struct ovsdb_idl *);
+
+int
+main(int argc, char *argv[])
+{
+    struct ovsdb_idl *idl;
+    struct ctl_command *commands;
+    struct shash local_options;
+    unsigned int seqno;
+    size_t n_commands;
+
+    set_program_name(argv[0]);
+    fatal_ignore_sigpipe();
+    vlog_set_levels(NULL, VLF_CONSOLE, VLL_WARN);
+    vlog_set_levels_from_string_assert("reconnect:warn");
+
+    conf_ctl_cmd_init();
+
+    /* Parse command line. */
+    char *args = process_escape_args(argv);
+    shash_init(&local_options);
+    parse_options(argc, argv, &local_options);
+    char *error = ctl_parse_commands(argc - optind, argv + optind,
+                                     &local_options, &commands, &n_commands);
+    if (error) {
+        ctl_fatal("%s", error);
+    }
+    VLOG(ctl_might_write_to_db(commands, n_commands) ? VLL_INFO : VLL_DBG,
+         "Called as %s", args);
+
+    ctl_timeout_setup(timeout);
+
+    /* Initialize IDL. */
+    idl = the_idl = ovsdb_idl_create(db, &ovsconf_idl_class, false, false);
+    run_prerequisites(commands, n_commands, idl);
+
+    /* Execute the commands.
+     *
+     * 'seqno' is the database sequence number for which we last tried to
+     * execute our transaction.  There's no point in trying to commit more than
+     * once for any given sequence number, because if the transaction fails
+     * it's because the database changed and we need to obtain an up-to-date
+     * view of the database before we try the transaction again. */
+    seqno = ovsdb_idl_get_seqno(idl);
+    for (;;) {
+        ovsdb_idl_run(idl);
+        if (!ovsdb_idl_is_alive(idl)) {
+            int retval = ovsdb_idl_get_last_error(idl);
+            ctl_fatal("%s: database connection failed (%s)",
+                        db, ovs_retval_to_string(retval));
+        }
+
+        if (seqno != ovsdb_idl_get_seqno(idl)) {
+            seqno = ovsdb_idl_get_seqno(idl);
+            if (do_conf_ctl(args, commands, n_commands, idl)) {
+                free(args);
+                exit(EXIT_SUCCESS);
+            }
+        }
+
+        if (seqno == ovsdb_idl_get_seqno(idl)) {
+            ovsdb_idl_wait(idl);
+            poll_block();
+        }
+    }
+}
+
+static void
+parse_options(int argc, char *argv[], struct shash *local_options)
+{
+    enum {
+        OPT_DB = UCHAR_MAX + 1,
+        OPT_ONELINE,
+        OPT_NO_SYSLOG,
+        OPT_DRY_RUN,
+        OPT_PEER_CA_CERT,
+        OPT_LOCAL,
+        VLOG_OPTION_ENUMS,
+        TABLE_OPTION_ENUMS,
+        SSL_OPTION_ENUMS,
+    };
+    static const struct option global_long_options[] = {
+        {"db", required_argument, NULL, OPT_DB},
+        {"no-syslog", no_argument, NULL, OPT_NO_SYSLOG},
+        {"dry-run", no_argument, NULL, OPT_DRY_RUN},
+        {"oneline", no_argument, NULL, OPT_ONELINE},
+        {"timeout", required_argument, NULL, 't'},
+        {"help", no_argument, NULL, 'h'},
+        {"version", no_argument, NULL, 'V'},
+        VLOG_LONG_OPTIONS,
+        TABLE_LONG_OPTIONS,
+        STREAM_SSL_LONG_OPTIONS,
+        {"peer-ca-cert", required_argument, NULL, OPT_PEER_CA_CERT},
+        {NULL, 0, NULL, 0},
+    };
+    const int n_global_long_options = ARRAY_SIZE(global_long_options) - 1;
+    char *tmp, *short_options;
+
+    struct option *options;
+    size_t allocated_options;
+    size_t n_options;
+    size_t i;
+
+    tmp = ovs_cmdl_long_options_to_short_options(global_long_options);
+    short_options = xasprintf("+%s", tmp);
+    free(tmp);
+
+    /* We want to parse both global and command-specific options here, but
+     * getopt_long() isn't too convenient for the job.  We copy our global
+     * options into a dynamic array, then append all of the command-specific
+     * options. */
+    options = xmemdup(global_long_options, sizeof global_long_options);
+    allocated_options = ARRAY_SIZE(global_long_options);
+    n_options = n_global_long_options;
+    ctl_add_cmd_options(&options, &n_options, &allocated_options, OPT_LOCAL);
+
+    for (;;) {
+        int idx;
+        int c;
+
+        c = getopt_long(argc, argv, short_options, options, &idx);
+        if (c == -1) {
+            break;
+        }
+
+        switch (c) {
+        case OPT_DB:
+            db = optarg;
+            break;
+
+        case OPT_ONELINE:
+            oneline = true;
+            break;
+
+        case OPT_NO_SYSLOG:
+            vlog_set_levels(&this_module, VLF_SYSLOG, VLL_WARN);
+            break;
+
+        case OPT_DRY_RUN:
+            dry_run = true;
+            break;
+
+        case OPT_LOCAL:
+            if (shash_find(local_options, options[idx].name)) {
+                ctl_fatal("'%s' option specified multiple times",
+                          options[idx].name);
+            }
+            shash_add_nocopy(local_options,
+                             xasprintf("--%s", options[idx].name),
+                             nullable_xstrdup(optarg));
+            break;
+
+        case 'h':
+            usage();
+
+        case 'V':
+            ovs_print_version(0, 0);
+            printf("DB Schema %s\n", ovsconf_get_db_version());
+            exit(EXIT_SUCCESS);
+
+        case 't':
+            if (!str_to_uint(optarg, 10, &timeout) || !timeout) {
+                ctl_fatal("value %s on -t or --timeout is invalid", optarg);
+            }
+            break;
+
+        VLOG_OPTION_HANDLERS
+        TABLE_OPTION_HANDLERS(&table_style)
+
+        STREAM_SSL_OPTION_HANDLERS
+
+        case OPT_PEER_CA_CERT:
+            stream_ssl_set_peer_ca_cert_file(optarg);
+            break;
+
+        case '?':
+            exit(EXIT_FAILURE);
+
+        default:
+            ovs_abort(0, "Internal error when parsing option %d.", c);
+        }
+    }
+    free(short_options);
+
+    if (!db) {
+        db = ctl_default_db();
+    }
+
+    for (i = n_global_long_options; options[i].name; i++) {
+        free(CONST_CAST(char *, options[i].name));
+    }
+    free(options);
+}
+
+/* Frees the current transaction and the underlying IDL and then calls
+ * exit(status).
+ *
+ * Freeing the transaction and the IDL is not strictly necessary, but it makes
+ * for a clean memory leak report from valgrind in the normal case.  That makes
+ * it easier to notice real memory leaks. */
+static void
+conf_ctl_exit(int status)
+{
+    if (the_idl_txn) {
+        ovsdb_idl_txn_abort(the_idl_txn);
+        ovsdb_idl_txn_destroy(the_idl_txn);
+    }
+    ovsdb_idl_destroy(the_idl);
+    exit(status);
+}
+
+static void
+usage(void)
+{
+    printf("\
+%s: OVS local configuration utility\n\
+usage: %s [OPTIONS] COMMAND [ARG...]\n\
+\n\
+Local_Config commands:\n\
+  show                        print overview of database contents\n\
+\n\
+Connection commands:\n\
+  get-connection             print the connections\n\
+  del-connection             delete the connections\n\
+  [--inactivity-probe=MSECS]\n\
+  set-connection TARGET...   set the list of connections to TARGET...\n\
+\n\
+%s\
+%s\
+\n\
+Options:\n\
+  --db=DATABASE               connect to DATABASE\n\
+                              (default: %s)\n\
+  -t, --timeout=SECS          wait at most SECS seconds\n\
+  --dry-run                   do not commit changes to database\n\
+  --oneline                   print exactly one line of output per command\n",
+           program_name, program_name, ctl_get_db_cmd_usage(),
+           ctl_list_db_tables_usage(), ctl_default_db());
+    table_usage();
+    vlog_usage();
+    printf("\
+  --no-syslog                 equivalent to --verbose=conf_ctl:syslog:warn\n");
+    stream_usage("database", true, true, false);
+    printf("\n\
+Other options:\n\
+  -h, --help                  display this help message\n\
+  -V, --version               display version information\n");
+    exit(EXIT_SUCCESS);
+}
+
+static struct cmd_show_table cmd_show_tables[] = {
+    {&ovsconf_table_config,
+     NULL,
+     {&ovsconf_config_col_connections, NULL},
+     {NULL, NULL, NULL}
+    },
+
+    {&ovsconf_table_connection,
+     &ovsconf_connection_col_target,
+     {&ovsconf_connection_col_is_connected,
+      NULL,
+      NULL},
+     {NULL, NULL, NULL}
+    },
+    {NULL, NULL, {NULL, NULL, NULL}, {NULL, NULL, NULL}}
+};
+
+struct conf_ctl_context {
+    struct ctl_context base;
+
+    /* Modifiable state. */
+    const struct ovsconf_config *conf_config;
+};
+
+/* Parameter commands. */
+static const struct ctl_table_class tables[OVSCONF_N_TABLES] = {
+    [OVSCONF_TABLE_CONNECTION].row_ids[0]
+    = {&ovsconf_connection_col_target, NULL, NULL},
+};
+
+
+static void
+conf_ctl_context_init_command(struct conf_ctl_context *confctl_ctx,
+                              struct ctl_command *command)
+{
+    ctl_context_init_command(&confctl_ctx->base, command);
+
+}
+
+static void
+conf_ctl_context_init(struct conf_ctl_context *confctl_ctx,
+                      struct ctl_command *command,
+                      struct ovsdb_idl *idl, struct ovsdb_idl_txn *txn,
+                      const struct ovsconf_config *conf_config,
+                      struct ovsdb_symbol_table *symtab)
+{
+    ctl_context_init(&confctl_ctx->base, command, idl, txn, symtab, NULL);
+    confctl_ctx->conf_config = conf_config;
+}
+
+static void
+conf_ctl_context_done_command(struct conf_ctl_context *confctl_ctx,
+                              struct ctl_command *command)
+{
+    ctl_context_done_command(&confctl_ctx->base, command);
+}
+
+static void
+conf_ctl_context_done(struct conf_ctl_context *confctl_ctx,
+                      struct ctl_command *command)
+{
+    ctl_context_done(&confctl_ctx->base, command);
+}
+
+static void
+run_prerequisites(struct ctl_command *commands, size_t n_commands,
+                  struct ovsdb_idl *idl)
+{
+    struct ctl_command *c;
+
+    ovsdb_idl_add_table(idl, &ovsconf_table_config);
+    for (c = commands; c < &commands[n_commands]; c++) {
+        if (c->syntax->prerequisites) {
+            struct conf_ctl_context confctl_ctx;
+
+            ds_init(&c->output);
+            c->table = NULL;
+
+            conf_ctl_context_init(&confctl_ctx, c, idl, NULL, NULL, NULL);
+            (c->syntax->prerequisites)(&confctl_ctx.base);
+            if (confctl_ctx.base.error) {
+                ctl_fatal("%s", confctl_ctx.base.error);
+            }
+            conf_ctl_context_done(&confctl_ctx, c);
+
+            ovs_assert(!c->output.string);
+            ovs_assert(!c->table);
+        }
+    }
+}
+
+static void
+verify_connections(struct ctl_context *ctx)
+{
+    const struct ovsconf_config *ovsconf_config =
+        ovsconf_config_first(ctx->idl);
+    const struct ovsconf_connection *conn;
+
+    ovsconf_config_verify_connections(ovsconf_config);
+
+    OVSCONF_CONNECTION_FOR_EACH (conn, ctx->idl) {
+        ovsconf_connection_verify_target(conn);
+    }
+}
+
+static void
+pre_connection(struct ctl_context *ctx)
+{
+    ovsdb_idl_add_column(ctx->idl, &ovsconf_config_col_connections);
+    ovsdb_idl_add_column(ctx->idl, &ovsconf_connection_col_target);
+    ovsdb_idl_add_column(ctx->idl, &ovsconf_connection_col_inactivity_probe);
+}
+
+static void
+cmd_get_connection(struct ctl_context *ctx)
+{
+    const struct ovsconf_connection *conn;
+    struct svec targets;
+    size_t i;
+
+    verify_connections(ctx);
+
+    /* Print the targets in sorted order for reproducibility. */
+    svec_init(&targets);
+
+    OVSCONF_CONNECTION_FOR_EACH (conn, ctx->idl) {
+        svec_add(&targets, conn->target);
+    }
+
+    svec_sort_unique(&targets);
+    for (i = 0; i < targets.n; i++) {
+        ds_put_format(&ctx->output, "%s\n", targets.names[i]);
+    }
+    svec_destroy(&targets);
+}
+
+static void
+delete_connections(struct ctl_context *ctx)
+{
+    const struct ovsconf_config *ovsconf_config =
+        ovsconf_config_first(ctx->idl);
+    const struct ovsconf_connection *conn;
+
+    /* Delete Manager rows pointed to by 'connection_options' column. */
+    OVSCONF_CONNECTION_FOR_EACH_SAFE (conn, ctx->idl) {
+        ovsconf_connection_delete(conn);
+    }
+
+    /* Delete 'Manager' row refs in 'manager_options' column. */
+    ovsconf_config_set_connections(ovsconf_config, NULL, 0);
+}
+
+static void
+cmd_del_connection(struct ctl_context *ctx)
+{
+    verify_connections(ctx);
+    delete_connections(ctx);
+}
+
+static void
+insert_connections(struct ctl_context *ctx, char *targets[], size_t n)
+{
+    const struct ovsconf_config *ovsconf_config =
+        ovsconf_config_first(ctx->idl);
+    struct ovsconf_connection **connections;
+    size_t i, conns = 0;
+    const char *inactivity_probe = shash_find_data(&ctx->options,
+                                                   "--inactivity-probe");
+
+    /* Insert each connection in a new row in Connection table. */
+    connections = xmalloc(n * sizeof *connections);
+    for (i = 0; i < n; i++) {
+        if (stream_verify_name(targets[i]) &&
+                   pstream_verify_name(targets[i])) {
+            VLOG_WARN("target type \"%s\" is possibly erroneous", targets[i]);
+        }
+
+        connections[conns] = ovsconf_connection_insert(ctx->txn);
+        ovsconf_connection_set_target(connections[conns], targets[i]);
+        if (inactivity_probe) {
+            int64_t msecs = atoll(inactivity_probe);
+            ovsconf_connection_set_inactivity_probe(connections[conns],
+                                                  &msecs, 1);
+        }
+        conns++;
+    }
+
+    /* Store uuids of new connection rows in 'connection' column. */
+    ovsconf_config_set_connections(ovsconf_config, connections, conns);
+    free(connections);
+}
+
+static void
+cmd_set_connection(struct ctl_context *ctx)
+{
+    const size_t n = ctx->argc - 1;
+
+    verify_connections(ctx);
+    delete_connections(ctx);
+    insert_connections(ctx, &ctx->argv[1], n);
+}
+
+
+static bool
+do_conf_ctl(const char *args, struct ctl_command *commands,
+            size_t n_commands, struct ovsdb_idl *idl)
+{
+    struct ovsdb_idl_txn *txn;
+    const struct ovsconf_config *conf_config;
+    enum ovsdb_idl_txn_status status;
+    struct ovsdb_symbol_table *symtab;
+    struct conf_ctl_context confctl_ctx;
+    struct ctl_command *c;
+    struct shash_node *node;
+    char *error = NULL;
+
+    txn = the_idl_txn = ovsdb_idl_txn_create(idl);
+    if (dry_run) {
+        ovsdb_idl_txn_set_dry_run(txn);
+    }
+
+    ovsdb_idl_txn_add_comment(txn, "ovs-confctl: %s", args);
+
+    conf_config = ovsconf_config_first(idl);
+    if (!conf_config) {
+        conf_config = ovsconf_config_insert(txn);
+    }
+
+    symtab = ovsdb_symbol_table_create();
+    for (c = commands; c < &commands[n_commands]; c++) {
+        ds_init(&c->output);
+        c->table = NULL;
+    }
+    conf_ctl_context_init(&confctl_ctx, NULL, idl, txn, conf_config, symtab);
+    for (c = commands; c < &commands[n_commands]; c++) {
+        conf_ctl_context_init_command(&confctl_ctx, c);
+        if (c->syntax->run) {
+            (c->syntax->run)(&confctl_ctx.base);
+        }
+        if (confctl_ctx.base.error) {
+            ctl_fatal("%s", confctl_ctx.base.error);
+        }
+        conf_ctl_context_done_command(&confctl_ctx, c);
+
+        if (confctl_ctx.base.try_again) {
+            conf_ctl_context_done(&confctl_ctx, NULL);
+            goto try_again;
+        }
+    }
+    conf_ctl_context_done(&confctl_ctx, NULL);
+
+    SHASH_FOR_EACH (node, &symtab->sh) {
+        struct ovsdb_symbol *symbol = node->data;
+        if (!symbol->created) {
+            ctl_fatal("row id \"%s\" is referenced but never created "
+                      "(e.g. with \"-- --id=%s create ...\")",
+                      node->name, node->name);
+        }
+        if (!symbol->strong_ref) {
+            if (!symbol->weak_ref) {
+                VLOG_WARN("row id \"%s\" was created but no reference to it "
+                          "was inserted, so it will not actually appear in "
+                          "the database", node->name);
+            } else {
+                VLOG_WARN("row id \"%s\" was created but only a weak "
+                          "reference to it was inserted, so it will not "
+                          "actually appear in the database", node->name);
+            }
+        }
+    }
+
+    status = ovsdb_idl_txn_commit_block(txn);
+    if (status == TXN_UNCHANGED || status == TXN_SUCCESS) {
+        for (c = commands; c < &commands[n_commands]; c++) {
+            if (c->syntax->postprocess) {
+                conf_ctl_context_init(&confctl_ctx, c, idl, txn, conf_config,
+                                      symtab);
+                (c->syntax->postprocess)(&confctl_ctx.base);
+                if (confctl_ctx.base.error) {
+                    ctl_fatal("%s", confctl_ctx.base.error);
+                }
+                conf_ctl_context_done(&confctl_ctx, c);
+            }
+        }
+    }
+    error = xstrdup(ovsdb_idl_txn_get_error(txn));
+    ovsdb_idl_txn_destroy(txn);
+    txn = the_idl_txn = NULL;
+
+    switch (status) {
+    case TXN_UNCOMMITTED:
+    case TXN_INCOMPLETE:
+        OVS_NOT_REACHED();
+
+    case TXN_ABORTED:
+        /* Should not happen--we never call ovsdb_idl_txn_abort(). */
+        ctl_fatal("transaction aborted");
+
+    case TXN_UNCHANGED:
+    case TXN_SUCCESS:
+        break;
+
+    case TXN_TRY_AGAIN:
+        goto try_again;
+
+    case TXN_ERROR:
+        ctl_fatal("transaction error: %s", error);
+
+    case TXN_NOT_LOCKED:
+        /* Should not happen--we never call ovsdb_idl_set_lock(). */
+        ctl_fatal("database not locked");
+
+    default:
+        OVS_NOT_REACHED();
+    }
+    free(error);
+
+    ovsdb_symbol_table_destroy(symtab);
+
+    for (c = commands; c < &commands[n_commands]; c++) {
+        struct ds *ds = &c->output;
+
+        if (c->table) {
+            table_print(c->table, &table_style);
+        } else if (oneline) {
+            size_t j;
+
+            ds_chomp(ds, '\n');
+            for (j = 0; j < ds->length; j++) {
+                int ch = ds->string[j];
+                switch (ch) {
+                case '\n':
+                    fputs("\\n", stdout);
+                    break;
+
+                case '\\':
+                    fputs("\\\\", stdout);
+                    break;
+
+                default:
+                    putchar(ch);
+                }
+            }
+            putchar('\n');
+        } else {
+            fputs(ds_cstr(ds), stdout);
+        }
+        ds_destroy(&c->output);
+        table_destroy(c->table);
+        free(c->table);
+
+        shash_destroy_free_data(&c->options);
+    }
+    free(commands);
+
+    ovsdb_idl_destroy(idl);
+
+    return true;
+
+try_again:
+    /* Our transaction needs to be rerun, or a prerequisite was not met.  Free
+     * resources and return so that the caller can try again. */
+    if (txn) {
+        ovsdb_idl_txn_abort(txn);
+        ovsdb_idl_txn_destroy(txn);
+    }
+    ovsdb_symbol_table_destroy(symtab);
+    for (c = commands; c < &commands[n_commands]; c++) {
+        ds_destroy(&c->output);
+        table_destroy(c->table);
+        free(c->table);
+    }
+    free(error);
+    return false;
+}
+
+static const struct ctl_command_syntax conf_commands[] = {
+    /* Connection commands. */
+    {"get-connection", 0, 0, "", pre_connection, cmd_get_connection, NULL, "",
+     RO},
+    {"del-connection", 0, 0, "", pre_connection, cmd_del_connection, NULL, "",
+     RW},
+    {"set-connection", 1, INT_MAX, "TARGET...", pre_connection,
+     cmd_set_connection, NULL, "--inactivity-probe=", RW},
+    {NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, RO},
+};
+
+/* Registers vsctl and common db commands. */
+static void
+conf_ctl_cmd_init(void)
+{
+    ctl_init(&ovsconf_idl_class, ovsconf_table_classes, tables,
+             cmd_show_tables, conf_ctl_exit);
+    ctl_register_commands(conf_commands);
+}