From: Simon Horman <horms@verge.net.au>
Date: Tue, 7 Aug 2012 21:49:38 +0000 (+0900)
Subject: ofp-util: Allow encoding of Open Flow 1.2 Packet In Messages
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d94240eccc644cbd702c2f64b608448223cc11f1;p=openvswitch

ofp-util: Allow encoding of Open Flow 1.2 Packet In Messages

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
---

diff --git a/lib/ofp-msgs.h b/lib/ofp-msgs.h
index 5ff5976e..1639cd97 100644
--- a/lib/ofp-msgs.h
+++ b/lib/ofp-msgs.h
@@ -127,6 +127,8 @@ enum ofpraw {
     OFPRAW_OFPT10_PACKET_IN,
     /* OFPT 1.1 (10): struct ofp11_packet_in up to data, uint8_t[]. */
     OFPRAW_OFPT11_PACKET_IN,
+    /* OFPT 1.2 (10): struct ofp12_packet_in, uint8_t[]. */
+    OFPRAW_OFPT12_PACKET_IN,
     /* NXT 1.0+ (17): struct nx_packet_in, uint8_t[]. */
     OFPRAW_NXT_PACKET_IN,
 
@@ -327,6 +329,7 @@ enum ofptype {
     /* Asynchronous messages. */
     OFPTYPE_PACKET_IN,           /* OFPRAW_OFPT10_PACKET_IN.
                                   * OFPRAW_OFPT11_PACKET_IN.
+                                  * OFPRAW_OFPT12_PACKET_IN.
                                   * OFPRAW_NXT_PACKET_IN. */
     OFPTYPE_FLOW_REMOVED,        /* OFPRAW_OFPT10_FLOW_REMOVED.
                                   * OFPRAW_NXT_FLOW_REMOVED. */
diff --git a/lib/ofp-util.c b/lib/ofp-util.c
index bd0cb348..36f1c8a1 100644
--- a/lib/ofp-util.c
+++ b/lib/ofp-util.c
@@ -1977,17 +1977,58 @@ ofputil_decode_packet_in(struct ofputil_packet_in *pin,
     return 0;
 }
 
+static void
+ofputil_packet_in_to_rule(const struct ofputil_packet_in *pin,
+                          struct cls_rule *rule)
+{
+    int i;
+
+    cls_rule_init_catchall(rule, 0);
+    cls_rule_set_tun_id_masked(rule, pin->fmd.tun_id,
+                               pin->fmd.tun_id_mask);
+    cls_rule_set_metadata_masked(rule, pin->fmd.metadata,
+                                 pin->fmd.metadata_mask);
+
+    for (i = 0; i < FLOW_N_REGS; i++) {
+        cls_rule_set_reg_masked(rule, i, pin->fmd.regs[i],
+                                pin->fmd.reg_masks[i]);
+    }
+
+    cls_rule_set_in_port(rule, pin->fmd.in_port);
+}
+
 /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message
  * in the format specified by 'packet_in_format'.  */
 struct ofpbuf *
 ofputil_encode_packet_in(const struct ofputil_packet_in *pin,
+                         enum ofputil_protocol protocol,
                          enum nx_packet_in_format packet_in_format)
 {
     size_t send_len = MIN(pin->send_len, pin->packet_len);
     struct ofpbuf *packet;
 
     /* Add OFPT_PACKET_IN. */
-    if (packet_in_format == NXPIF_OPENFLOW10) {
+    if (protocol == OFPUTIL_P_OF12) {
+        struct ofp12_packet_in *opi;
+        struct cls_rule rule;
+
+        ofputil_packet_in_to_rule(pin, &rule);
+
+        /* The final argument is just an estimate of the space required. */
+        packet = ofpraw_alloc_xid(OFPRAW_OFPT12_PACKET_IN, OFP12_VERSION,
+                                  htonl(0), (sizeof(struct flow_metadata) * 2
+                                             + 2 + send_len));
+        ofpbuf_put_zeros(packet, sizeof *opi);
+        oxm_put_match(packet, &rule);
+        ofpbuf_put_zeros(packet, 2);
+        ofpbuf_put(packet, pin->packet, send_len);
+
+        opi = packet->l3;
+        opi->buffer_id = htonl(pin->buffer_id);
+        opi->total_len = htons(pin->total_len);
+        opi->reason = pin->reason;
+        opi->table_id = pin->table_id;
+   } else if (packet_in_format == NXPIF_OPENFLOW10) {
         struct ofp_packet_in *opi;
 
         packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION,
@@ -2003,21 +2044,8 @@ ofputil_encode_packet_in(const struct ofputil_packet_in *pin,
         struct nx_packet_in *npi;
         struct cls_rule rule;
         size_t match_len;
-        size_t i;
-
-        cls_rule_init_catchall(&rule, 0);
-        cls_rule_set_tun_id_masked(&rule, pin->fmd.tun_id,
-                                   pin->fmd.tun_id_mask);
-        cls_rule_set_metadata_masked(&rule, pin->fmd.metadata,
-                                   pin->fmd.metadata_mask);
-
-
-        for (i = 0; i < FLOW_N_REGS; i++) {
-            cls_rule_set_reg_masked(&rule, i, pin->fmd.regs[i],
-                                    pin->fmd.reg_masks[i]);
-        }
 
-        cls_rule_set_in_port(&rule, pin->fmd.in_port);
+        ofputil_packet_in_to_rule(pin, &rule);
 
         /* The final argument is just an estimate of the space required. */
         packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION,
diff --git a/lib/ofp-util.h b/lib/ofp-util.h
index bea37eee..bc572264 100644
--- a/lib/ofp-util.h
+++ b/lib/ofp-util.h
@@ -277,6 +277,7 @@ struct ofputil_packet_in {
 enum ofperr ofputil_decode_packet_in(struct ofputil_packet_in *,
                                      const struct ofp_header *);
 struct ofpbuf *ofputil_encode_packet_in(const struct ofputil_packet_in *,
+                                        enum ofputil_protocol protocol,
                                         enum nx_packet_in_format);
 
 const char *ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason);
diff --git a/ofproto/connmgr.c b/ofproto/connmgr.c
index d436f779..aaf9b3e2 100644
--- a/ofproto/connmgr.c
+++ b/ofproto/connmgr.c
@@ -1407,7 +1407,8 @@ schedule_packet_in(struct ofconn *ofconn, struct ofputil_packet_in pin)
      * while (until a later call to pinsched_run()). */
     pinsched_send(ofconn->schedulers[pin.reason == OFPR_NO_MATCH ? 0 : 1],
                   pin.fmd.in_port,
-                  ofputil_encode_packet_in(&pin, ofconn->packet_in_format),
+                  ofputil_encode_packet_in(&pin, ofconn->protocol,
+                                           ofconn->packet_in_format),
                   do_send_packet_in, ofconn);
 }