ovs-ofctl: Support all OFPPC_* flags in "mod-port" command.

Signed-off-by: Ben Pfaff <[email protected]>

NEWS

@@ -26,6 +26,8 @@ v1.7.0 - xx xxx xxxx
     - The "coverage/log" command previously available through ovs-appctl
       has been replaced by "coverage/show".  The new command replies with
       coverage counter values, instead of logging them.
+    - ovs-ofctl:
+        - "mod-port" command can now control all OpenFlow config flags.
 
 
 v1.6.0 - xx xxx xxxx

tests/ofproto.at

@@ -68,7 +68,14 @@ for command_config_state in \
     'up 0 0' \
     'noflood NO_FLOOD 0' \
     'down PORT_DOWN,NO_FLOOD LINK_DOWN' \
-    'flood PORT_DOWN LINK_DOWN'
+    'flood PORT_DOWN LINK_DOWN' \
+    'no-receive PORT_DOWN,NO_RECV LINK_DOWN' \
+    'no-forward PORT_DOWN,NO_RECV,NO_FWD LINK_DOWN' \
+    'no-packet-in PORT_DOWN,NO_RECV,NO_FWD,NO_PACKET_IN LINK_DOWN' \
+    'forward PORT_DOWN,NO_RECV,NO_PACKET_IN LINK_DOWN' \
+    'packet-in PORT_DOWN,NO_RECV LINK_DOWN' \
+    'up NO_RECV 0' \
+    'receive 0 0'
 do
     set $command_config_state
     command=$[1] config=`echo $[2] | sed 's/,/ /g'` state=$[3]

utilities/ovs-ofctl.8.in

@@ -79,31 +79,49 @@ the device name, e.g. \fBeth0\fR.  The \fIaction\fR may be any one of the
 following:
 .
 .RS
-.IP \fBup\fR
-Enables the interface.  This is equivalent to ``ifconfig up'' on a Unix
-system.
-.
-.IP \fBdown\fR
-Disables the interface.  This is equivalent to ``ifconfig down'' on a Unix
-system.
+.IQ \fBup\fR
+.IQ \fBdown\fR
+Enable or disable the interface.  This is equivalent to \fBifconfig
+up\fR or \fBifconfig down\fR on a Unix system.
+.
+.IP \fBstp\fR
+.IQ \fBno\-stp\fR
+Enable or disable 802.1D spanning tree protocol (STP) on the
+interface.  OpenFlow implementations that don't support STP will
+refuse to enable it.
+.
+.IP \fBreceive\fR
+.IQ \fBno\-receive\fR
+.IQ \fBreceive\-stp\fR
+.IQ \fBno\-receive\-stp\fR
+Enable or disable OpenFlow processing of packets received on this
+interface.  When packet processing is disabled, packets will be
+dropped instead of being processed through the OpenFlow table.  The
+\fBreceive\fR or \fBno\-receive\fR setting applies to all packets
+except 802.1D spanning tree packets, which are separately controlled
+by \fBreceive\-stp\fR or \fBno\-receive\-stp\fR.
 .
 .IP \fBforward\fR
-Allows forwarding of traffic on this interface.  This is the default posture
-for all ports.
-.
-.IP \fBnoforward\fR
-Disallows forwarding of traffic on this interface.
+.IQ \fBno\-forward\fR
+Allow or disallow forwarding of traffic to this interface.  By
+default, forwarding is enabled.
 .
 .IP \fBflood\fR
-When a \fIflood\fR action is specified, traffic will be sent out this
-interface.  This is the default posture for monitored ports.
-.
-.IP \fBnoflood\fR
-When a \fIflood\fR action is specified, traffic will not be sent out 
-this interface.  This is primarily useful to prevent loops when a
-spanning tree protocol is not in use.
-.
+.IQ \fBno\-flood\fR
+Controls whether an OpenFlow \fBflood\fR action will send traffic out
+this interface.  By default, flooding is enabled.  Disabling flooding
+is primarily useful to prevent loops when a spanning tree protocol is
+not in use.
+.
+.IP \fBpacket\-in\fR
+.IQ \fBno\-packet\-in\fR
+Controls whether packets received on this interface that do not match
+a flow table entry generate a ``packet in'' message to the OpenFlow
+controller.  By default, ``packet in'' messages are enabled.
 .RE
+.IP
+The \fBshow\fR command displays (among other information) the
+configuration that \fBmod\-port\fR changes.
 .
 .IP "\fBget\-frags \fIswitch\fR"
 Prints \fIswitch\fR's fragment handling mode.  See \fBset\-frags\fR,

utilities/ovs-ofctl.c

@@ -1270,10 +1270,29 @@ do_packet_out(int argc, char *argv[])
 static void
 do_mod_port(int argc OVS_UNUSED, char *argv[])
 {
+    struct ofp_config_flag {
+        const char *name;             /* The flag's name. */
+        enum ofputil_port_config bit; /* Bit to turn on or off. */
+        bool on;                      /* Value to set the bit to. */
+    };
+    static const struct ofp_config_flag flags[] = {
+        { "up",          OFPUTIL_PC_PORT_DOWN,    false },
+        { "down",        OFPUTIL_PC_PORT_DOWN,    true  },
+        { "stp",         OFPUTIL_PC_NO_STP,       false },
+        { "receive",     OFPUTIL_PC_NO_RECV,      false },
+        { "receive-stp", OFPUTIL_PC_NO_RECV_STP,  false },
+        { "flood",       OFPUTIL_PC_NO_FLOOD,     false },
+        { "forward",     OFPUTIL_PC_NO_FWD,       false },
+        { "packet-in",   OFPUTIL_PC_NO_PACKET_IN, false },
+    };
+
+    const struct ofp_config_flag *flag;
     enum ofputil_protocol protocol;
     struct ofputil_port_mod pm;
     struct ofputil_phy_port pp;
     struct vconn *vconn;
+    const char *command;
+    bool not;
 
     fetch_ofputil_phy_port(argv[1], argv[2], &pp);
 
@@ -1283,25 +1302,26 @@ do_mod_port(int argc OVS_UNUSED, char *argv[])
     pm.mask = 0;
     pm.advertise = 0;
 
-    if (!strcasecmp(argv[3], "up")) {
-        pm.mask |= OFPUTIL_PC_PORT_DOWN;
-    } else if (!strcasecmp(argv[3], "down")) {
-        pm.mask |= OFPUTIL_PC_PORT_DOWN;
-        pm.config |= OFPUTIL_PC_PORT_DOWN;
-    } else if (!strcasecmp(argv[3], "flood")) {
-        pm.mask |= OFPUTIL_PC_NO_FLOOD;
-    } else if (!strcasecmp(argv[3], "noflood")) {
-        pm.mask |= OFPUTIL_PC_NO_FLOOD;
-        pm.config |= OFPUTIL_PC_NO_FLOOD;
-    } else if (!strcasecmp(argv[3], "forward")) {
-        pm.mask |= OFPUTIL_PC_NO_FWD;
-    } else if (!strcasecmp(argv[3], "noforward")) {
-        pm.mask |= OFPUTIL_PC_NO_FWD;
-        pm.config |= OFPUTIL_PC_NO_FWD;
+    if (!strncasecmp(argv[3], "no-", 3)) {
+        command = argv[3] + 3;
+        not = true;
+    } else if (!strncasecmp(argv[3], "no", 2)) {
+        command = argv[3] + 2;
+        not = true;
     } else {
-        ovs_fatal(0, "unknown mod-port command '%s'", argv[3]);
+        command = argv[3];
+        not = false;
+    }
+    for (flag = flags; flag < &flags[ARRAY_SIZE(flags)]; flag++) {
+        if (!strcasecmp(command, flag->name)) {
+            pm.mask = flag->bit;
+            pm.config = flag->on ^ not ? flag->bit : 0;
+            goto found;
+        }
     }
+    ovs_fatal(0, "unknown mod-port command '%s'", argv[3]);
 
+found:
     protocol = open_vconn(argv[1], &vconn);
     transact_noreply(vconn, ofputil_encode_port_mod(&pm, protocol));
     vconn_close(vconn);