ofp-util: Allow decoding of Open Flow 1.2 Flow Statistics Request Messages

Allow decoding of Open Flow 1.1 and 1.2 flow statistics request messages.

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

diff --git a/lib/ofp-util.c b/lib/ofp-util.c
index 1226ace..a2e9501 100644 (file)
--- a/lib/ofp-util.c
+++ b/lib/ofp-util.c
@@ -1396,9 +1396,9 @@ ofputil_flow_mod_usable_protocols(const struct ofputil_flow_mod *fms,
 }
 
 static enum ofperr
-ofputil_decode_ofpst_flow_request(struct ofputil_flow_stats_request *fsr,
-                                  const struct ofp10_flow_stats_request *ofsr,
-                                  bool aggregate)
+ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr,
+                                    const struct ofp10_flow_stats_request *ofsr,
+                                    bool aggregate)
 {
     fsr->aggregate = aggregate;
     ofputil_cls_rule_from_ofp10_match(&ofsr->match, 0, &fsr->match);
@@ -1409,6 +1409,33 @@ ofputil_decode_ofpst_flow_request(struct ofputil_flow_stats_request *fsr,
     return 0;
 }
 
+static enum ofperr
+ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr,
+                                    struct ofpbuf *b, bool aggregate)
+{
+    const struct ofp11_flow_stats_request *ofsr;
+    enum ofperr error;
+
+    ofsr = ofpbuf_pull(b, sizeof *ofsr);
+    fsr->aggregate = aggregate;
+    fsr->table_id = ofsr->table_id;
+    error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port);
+    if (error) {
+        return error;
+    }
+    if (ofsr->out_group != htonl(OFPG11_ANY)) {
+        return OFPERR_NXFMFC_GROUPS_NOT_SUPPORTED;
+    }
+    fsr->cookie = ofsr->cookie;
+    fsr->cookie_mask = ofsr->cookie_mask;
+    error = ofputil_pull_ofp11_match(b, 0, &fsr->match, NULL);
+    if (error) {
+        return error;
+    }
+
+    return 0;
+}
+
 static enum ofperr
 ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr,
                                  struct ofpbuf *b, bool aggregate)
@@ -1447,10 +1474,13 @@ ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr,
     raw = ofpraw_pull_assert(&b);
     switch ((int) raw) {
     case OFPRAW_OFPST10_FLOW_REQUEST:
-        return ofputil_decode_ofpst_flow_request(fsr, b.data, false);
+        return ofputil_decode_ofpst10_flow_request(fsr, b.data, false);
 
     case OFPRAW_OFPST_AGGREGATE_REQUEST:
-        return ofputil_decode_ofpst_flow_request(fsr, b.data, true);
+        return ofputil_decode_ofpst10_flow_request(fsr, b.data, true);
+
+    case OFPRAW_OFPST11_FLOW_REQUEST:
+        return ofputil_decode_ofpst11_flow_request(fsr, &b, false);
 
     case OFPRAW_NXST_FLOW_REQUEST:
         return ofputil_decode_nxst_flow_request(fsr, &b, false);

diff --git a/tests/ofp-print.at b/tests/ofp-print.at
index 376f5b8..e01419f 100644 (file)
--- a/tests/ofp-print.at
+++ b/tests/ofp-print.at
@@ -645,7 +645,7 @@ DP Description: None
 ])
 AT_CLEANUP
 
-AT_SETUP([OFPST_FLOW request])
+AT_SETUP([OFPST_FLOW request - OF1.0])
 AT_KEYWORDS([ofp-print OFPT_STATS_REQUEST])
 AT_CHECK([ovs-ofctl ofp-print "\
 01 10 00 38 00 00 00 04 00 01 00 00 00 38 20 ff \
@@ -657,6 +657,18 @@ OFPST_FLOW request (xid=0x4): @&t@
 ])
 AT_CLEANUP
 
+AT_SETUP([OFPST_FLOW request - OF1.2])
+AT_KEYWORDS([ofp-print OFPT_STATS_REQUEST])
+AT_CHECK([ovs-ofctl ofp-print "\
+03 12 00 38 00 00 00 02 00 01 00 00 00 00 00 00 \
+ff 00 00 00 ff ff ff ff ff ff ff ff 00 00 00 00 \
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 \
+00 01 00 04 00 00 00 00 \
+"], [0], [dnl
+OFPST_FLOW request (OF1.2) (xid=0x2): @&t@
+])
+AT_CLEANUP
+
 AT_SETUP([OFPST_FLOW reply - OF1.0])
 AT_KEYWORDS([ofp-print OFPT_STATS_REPLY])
 AT_CHECK([ovs-ofctl ofp-print "\