ofp-util: Implement OpenFlow 1.1 packet-in message.
[sliver-openvswitch.git] / lib / ofp-util.c
index e881849..7fc4c7c 100644 (file)
@@ -84,7 +84,7 @@ ofputil_netmask_to_wcbits(ovs_be32 netmask)
 void
 ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc)
 {
-    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 22);
+    BUILD_ASSERT_DECL(FLOW_WC_SEQ == 23);
 
     /* Initialize most of wc. */
     flow_wildcards_init_catchall(wc);
@@ -436,11 +436,11 @@ ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch,
     }
 
     if (eth_type_mpls(match->flow.dl_type)) {
-        enum { OFPFW11_MPLS_ALL = OFPFW11_MPLS_LABEL | OFPFW11_MPLS_TC };
-
-        if ((wc & OFPFW11_MPLS_ALL) != OFPFW11_MPLS_ALL) {
-            /* MPLS not supported. */
-            return OFPERR_OFPBMC_BAD_TAG;
+        if (!(wc & OFPFW11_MPLS_LABEL)) {
+            match_set_mpls_label(match, ofmatch->mpls_label);
+        }
+        if (!(wc & OFPFW11_MPLS_TC)) {
+            match_set_mpls_tc(match, ofmatch->mpls_tc);
         }
     }
 
@@ -533,9 +533,17 @@ ofputil_match_to_ofp11_match(const struct match *match,
         ofmatch->tp_dst = match->flow.tp_dst;
     }
 
-    /* MPLS not supported. */
-    wc |= OFPFW11_MPLS_LABEL;
-    wc |= OFPFW11_MPLS_TC;
+    if (!(match->wc.masks.mpls_lse & htonl(MPLS_LABEL_MASK))) {
+        wc |= OFPFW11_MPLS_LABEL;
+    } else {
+        ofmatch->mpls_label = htonl(mpls_lse_to_label(match->flow.mpls_lse));
+    }
+
+    if (!(match->wc.masks.mpls_lse & htonl(MPLS_TC_MASK))) {
+        wc |= OFPFW11_MPLS_TC;
+    } else {
+        ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse);
+    }
 
     ofmatch->metadata = match->flow.metadata;
     ofmatch->metadata_mask = ~match->wc.masks.metadata;
@@ -1484,7 +1492,8 @@ enum ofperr
 ofputil_decode_flow_mod(struct ofputil_flow_mod *fm,
                         const struct ofp_header *oh,
                         enum ofputil_protocol protocol,
-                        struct ofpbuf *ofpacts)
+                        struct ofpbuf *ofpacts,
+                        ofp_port_t max_port, uint8_t max_table)
 {
     ovs_be16 raw_flags;
     enum ofperr error;
@@ -1504,8 +1513,8 @@ ofputil_decode_flow_mod(struct ofputil_flow_mod *fm,
             return error;
         }
 
-        error = ofpacts_pull_openflow11_instructions(&b, oh->version,
-                                                     b.size, ofpacts);
+        error = ofpacts_pull_openflow_instructions(&b, b.size, oh->version,
+                                                   ofpacts);
         if (error) {
             return error;
         }
@@ -1530,7 +1539,19 @@ ofputil_decode_flow_mod(struct ofputil_flow_mod *fm,
         }
         fm->modify_cookie = false;
         fm->command = ofm->command;
+
+        /* Get table ID.
+         *
+         * OF1.1 entirely forbids table_id == OFPTT_ALL.
+         * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */
         fm->table_id = ofm->table_id;
+        if (fm->table_id == OFPTT_ALL
+            && (oh->version == OFP11_VERSION
+                || (ofm->command != OFPFC_DELETE &&
+                    ofm->command != OFPFC_DELETE_STRICT))) {
+            return OFPERR_OFPFMFC_BAD_TABLE_ID;
+        }
+
         fm->idle_timeout = ntohs(ofm->idle_timeout);
         fm->hard_timeout = ntohs(ofm->hard_timeout);
         fm->buffer_id = ntohl(ofm->buffer_id);
@@ -1561,7 +1582,8 @@ ofputil_decode_flow_mod(struct ofputil_flow_mod *fm,
             ofputil_normalize_match(&fm->match);
 
             /* Now get the actions. */
-            error = ofpacts_pull_openflow10(&b, b.size, ofpacts);
+            error = ofpacts_pull_openflow_actions(&b, b.size, oh->version,
+                                                  ofpacts);
             if (error) {
                 return error;
             }
@@ -1594,7 +1616,8 @@ ofputil_decode_flow_mod(struct ofputil_flow_mod *fm,
             if (error) {
                 return error;
             }
-            error = ofpacts_pull_openflow10(&b, b.size, ofpacts);
+            error = ofpacts_pull_openflow_actions(&b, b.size, oh->version,
+                                                  ofpacts);
             if (error) {
                 return error;
             }
@@ -1649,7 +1672,9 @@ ofputil_decode_flow_mod(struct ofputil_flow_mod *fm,
                 : OFPERR_OFPFMFC_TABLE_FULL);
     }
 
-    return 0;
+    return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len,
+                                     &fm->match.flow, max_port,
+                                     fm->table_id, max_table, protocol);
 }
 
 static enum ofperr
@@ -1673,6 +1698,9 @@ ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands,
         }
         mb = ofpbuf_put_uninit(bands, sizeof *mb);
         mb->type = ntohs(ombh->type);
+        if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) {
+            return OFPERR_OFPMMFC_BAD_BAND;
+        }
         mb->rate = ntohl(ombh->rate);
         mb->burst_size = ntohl(ombh->burst_size);
         mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ?
@@ -1703,6 +1731,11 @@ ofputil_decode_meter_mod(const struct ofp_header *oh,
 
     /* Translate the message. */
     mm->command = ntohs(omm->command);
+    if (mm->command != OFPMC13_ADD &&
+        mm->command != OFPMC13_MODIFY &&
+        mm->command != OFPMC13_DELETE) {
+        return OFPERR_OFPMMFC_BAD_COMMAND;
+    }
     mm->meter.meter_id = ntohl(omm->meter_id);
 
     if (mm->command == OFPMC13_DELETE) {
@@ -1713,6 +1746,10 @@ ofputil_decode_meter_mod(const struct ofp_header *oh,
         enum ofperr error;
 
         mm->meter.flags = ntohs(omm->flags);
+        if (mm->meter.flags & OFPMF13_KBPS &&
+            mm->meter.flags & OFPMF13_PKTPS) {
+            return OFPERR_OFPMMFC_BAD_FLAGS;
+        }
         mm->meter.bands = bands->data;
 
         error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands);
@@ -1864,7 +1901,7 @@ ofputil_decode_meter_config(struct ofpbuf *msg,
     omc = ofpbuf_try_pull(msg, sizeof *omc);
     if (!omc) {
         VLOG_WARN_RL(&bad_ofmsg_rl,
-                     "OFPMP_METER_CONFIG reply has %zu leftover bytes at end",
+                     "OFPMP_METER_CONFIG reply has %"PRIuSIZE" leftover bytes at end",
                      msg->size);
         return OFPERR_OFPBRC_BAD_LEN;
     }
@@ -1940,7 +1977,7 @@ ofputil_decode_meter_stats(struct ofpbuf *msg,
     oms = ofpbuf_try_pull(msg, sizeof *oms);
     if (!oms) {
         VLOG_WARN_RL(&bad_ofmsg_rl,
-                     "OFPMP_METER reply has %zu leftover bytes at end",
+                     "OFPMP_METER reply has %"PRIuSIZE" leftover bytes at end",
                      msg->size);
         return OFPERR_OFPBRC_BAD_LEN;
     }
@@ -2056,7 +2093,14 @@ ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm,
             ofm->cookie = fm->cookie;
         }
         ofm->cookie_mask = fm->cookie_mask;
-        ofm->table_id = fm->table_id;
+        if (fm->table_id != OFPTT_ALL
+            || (protocol != OFPUTIL_P_OF11_STD
+                && (fm->command == OFPFC_DELETE ||
+                    fm->command == OFPFC_DELETE_STRICT))) {
+            ofm->table_id = fm->table_id;
+        } else {
+            ofm->table_id = 0;
+        }
         ofm->command = fm->command;
         ofm->idle_timeout = htons(fm->idle_timeout);
         ofm->hard_timeout = htons(fm->hard_timeout);
@@ -2066,7 +2110,8 @@ ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm,
         ofm->out_group = htonl(fm->out_group);
         ofm->flags = raw_flags;
         ofputil_put_ofp11_match(msg, &fm->match, protocol);
-        ofpacts_put_openflow11_instructions(fm->ofpacts, fm->ofpacts_len, msg);
+        ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg,
+                                          version);
         break;
     }
 
@@ -2086,7 +2131,8 @@ ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm,
         ofm->buffer_id = htonl(fm->buffer_id);
         ofm->out_port = htons(ofp_to_u16(fm->out_port));
         ofm->flags = raw_flags;
-        ofpacts_put_openflow10(fm->ofpacts, fm->ofpacts_len, msg);
+        ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg,
+                                     version);
         break;
     }
 
@@ -2109,7 +2155,8 @@ ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm,
         nfm->out_port = htons(ofp_to_u16(fm->out_port));
         nfm->flags = raw_flags;
         nfm->match_len = htons(match_len);
-        ofpacts_put_openflow10(fm->ofpacts, fm->ofpacts_len, msg);
+        ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg,
+                                     version);
         break;
     }
 
@@ -2621,7 +2668,7 @@ ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
 
         ofs = ofpbuf_try_pull(msg, sizeof *ofs);
         if (!ofs) {
-            VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %zu leftover "
+            VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIuSIZE" leftover "
                          "bytes at end", msg->size);
             return EINVAL;
         }
@@ -2629,7 +2676,7 @@ ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
         length = ntohs(ofs->length);
         if (length < sizeof *ofs) {
             VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid "
-                         "length %zu", length);
+                         "length %"PRIuSIZE, length);
             return EINVAL;
         }
 
@@ -2638,9 +2685,9 @@ ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
             return EINVAL;
         }
 
-        if (ofpacts_pull_openflow11_instructions(msg, oh->version,
-                                                 length - sizeof *ofs -
-                                                 padded_match_len, ofpacts)) {
+        if (ofpacts_pull_openflow_instructions(msg, length - sizeof *ofs -
+                                               padded_match_len, oh->version,
+                                               ofpacts)) {
             VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions");
             return EINVAL;
         }
@@ -2671,7 +2718,7 @@ ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
 
         ofs = ofpbuf_try_pull(msg, sizeof *ofs);
         if (!ofs) {
-            VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %zu leftover "
+            VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIuSIZE" leftover "
                          "bytes at end", msg->size);
             return EINVAL;
         }
@@ -2679,11 +2726,12 @@ ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
         length = ntohs(ofs->length);
         if (length < sizeof *ofs) {
             VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid "
-                         "length %zu", length);
+                         "length %"PRIuSIZE, length);
             return EINVAL;
         }
 
-        if (ofpacts_pull_openflow10(msg, length - sizeof *ofs, ofpacts)) {
+        if (ofpacts_pull_openflow_actions(msg, length - sizeof *ofs,
+                                          oh->version, ofpacts)) {
             return EINVAL;
         }
 
@@ -2706,7 +2754,7 @@ ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
 
         nfs = ofpbuf_try_pull(msg, sizeof *nfs);
         if (!nfs) {
-            VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %zu leftover "
+            VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIuSIZE" leftover "
                          "bytes at end", msg->size);
             return EINVAL;
         }
@@ -2714,8 +2762,8 @@ ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
         length = ntohs(nfs->length);
         match_len = ntohs(nfs->match_len);
         if (length < sizeof *nfs + ROUND_UP(match_len, 8)) {
-            VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%zu "
-                         "claims invalid length %zu", match_len, length);
+            VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" "
+                         "claims invalid length %"PRIuSIZE, match_len, length);
             return EINVAL;
         }
         if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) {
@@ -2723,7 +2771,8 @@ ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
         }
 
         actions_len = length - sizeof *nfs - ROUND_UP(match_len, 8);
-        if (ofpacts_pull_openflow10(msg, actions_len, ofpacts)) {
+        if (ofpacts_pull_openflow_actions(msg, actions_len, oh->version,
+                                          ofpacts)) {
             return EINVAL;
         }
 
@@ -2777,16 +2826,16 @@ ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs,
     struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
     size_t start_ofs = reply->size;
     enum ofpraw raw;
+    enum ofp_version version = ((struct ofp_header *)reply->data)->version;
 
     ofpraw_decode_partial(&raw, reply->data, reply->size);
     if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) {
-        const struct ofp_header *oh = reply->data;
         struct ofp11_flow_stats *ofs;
 
         ofpbuf_put_uninit(reply, sizeof *ofs);
         oxm_put_match(reply, &fs->match);
-        ofpacts_put_openflow11_instructions(fs->ofpacts, fs->ofpacts_len,
-                                            reply);
+        ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply,
+                                          version);
 
         ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs);
         ofs->length = htons(reply->size - start_ofs);
@@ -2798,7 +2847,7 @@ ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs,
         ofs->idle_timeout = htons(fs->idle_timeout);
         ofs->hard_timeout = htons(fs->hard_timeout);
         if (raw == OFPRAW_OFPST13_FLOW_REPLY) {
-            ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, oh->version);
+            ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version);
         } else {
             ofs->flags = 0;
         }
@@ -2810,8 +2859,8 @@ ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs,
         struct ofp10_flow_stats *ofs;
 
         ofpbuf_put_uninit(reply, sizeof *ofs);
-        ofpacts_put_openflow10(fs->ofpacts, fs->ofpacts_len, reply);
-
+        ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply,
+                                     version);
         ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs);
         ofs->length = htons(reply->size - start_ofs);
         ofs->table_id = fs->table_id;
@@ -2834,8 +2883,8 @@ ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs,
 
         ofpbuf_put_uninit(reply, sizeof *nfs);
         match_len = nx_put_match(reply, &fs->match, 0, 0);
-        ofpacts_put_openflow10(fs->ofpacts, fs->ofpacts_len, reply);
-
+        ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply,
+                                     version);
         nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs);
         nfs->length = htons(reply->size - start_ofs);
         nfs->table_id = fs->table_id;
@@ -3147,6 +3196,23 @@ ofputil_decode_packet_in(struct ofputil_packet_in *pin,
         pin->reason = opi->reason;
         pin->buffer_id = ntohl(opi->buffer_id);
         pin->total_len = ntohs(opi->total_len);
+    } else if (raw == OFPRAW_OFPT11_PACKET_IN) {
+        const struct ofp11_packet_in *opi;
+        enum ofperr error;
+
+        opi = ofpbuf_pull(&b, sizeof *opi);
+
+        pin->packet = b.data;
+        pin->packet_len = b.size;
+
+        pin->buffer_id = ntohl(opi->buffer_id);
+        error = ofputil_port_from_ofp11(opi->in_port, &pin->fmd.in_port);
+        if (error) {
+            return error;
+        }
+        pin->total_len = ntohs(opi->total_len);
+        pin->reason = opi->reason;
+        pin->table_id = opi->table_id;
     } else if (raw == OFPRAW_NXT_PACKET_IN) {
         const struct nx_packet_in *npi;
         struct match match;
@@ -3211,6 +3277,120 @@ ofputil_packet_in_to_match(const struct ofputil_packet_in *pin,
     match_set_in_port(match, pin->fmd.in_port);
 }
 
+static struct ofpbuf *
+ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin)
+{
+    struct ofp10_packet_in *opi;
+    struct ofpbuf *packet;
+
+    packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION,
+                              htonl(0), pin->packet_len);
+    opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data));
+    opi->total_len = htons(pin->total_len);
+    opi->in_port = htons(ofp_to_u16(pin->fmd.in_port));
+    opi->reason = pin->reason;
+    opi->buffer_id = htonl(pin->buffer_id);
+
+    ofpbuf_put(packet, pin->packet, pin->packet_len);
+
+    return packet;
+}
+
+static struct ofpbuf *
+ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin)
+{
+    struct nx_packet_in *npi;
+    struct ofpbuf *packet;
+    struct match match;
+    size_t match_len;
+
+    ofputil_packet_in_to_match(pin, &match);
+
+    /* The final argument is just an estimate of the space required. */
+    packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION,
+                              htonl(0), (sizeof(struct flow_metadata) * 2
+                                         + 2 + pin->packet_len));
+    ofpbuf_put_zeros(packet, sizeof *npi);
+    match_len = nx_put_match(packet, &match, 0, 0);
+    ofpbuf_put_zeros(packet, 2);
+    ofpbuf_put(packet, pin->packet, pin->packet_len);
+
+    npi = packet->l3;
+    npi->buffer_id = htonl(pin->buffer_id);
+    npi->total_len = htons(pin->total_len);
+    npi->reason = pin->reason;
+    npi->table_id = pin->table_id;
+    npi->cookie = pin->cookie;
+    npi->match_len = htons(match_len);
+
+    return packet;
+}
+
+static struct ofpbuf *
+ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin)
+{
+    struct ofp11_packet_in *opi;
+    struct ofpbuf *packet;
+
+    packet = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION,
+                              htonl(0), pin->packet_len);
+    opi = ofpbuf_put_zeros(packet, sizeof *opi);
+    opi->buffer_id = htonl(pin->buffer_id);
+    opi->in_port = ofputil_port_to_ofp11(pin->fmd.in_port);
+    opi->in_phy_port = opi->in_port;
+    opi->total_len = htons(pin->total_len);
+    opi->reason = pin->reason;
+    opi->table_id = pin->table_id;
+
+    ofpbuf_put(packet, pin->packet, pin->packet_len);
+
+    return packet;
+}
+
+static struct ofpbuf *
+ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin,
+                               enum ofputil_protocol protocol)
+{
+    struct ofp13_packet_in *opi;
+    struct match match;
+    enum ofpraw packet_in_raw;
+    enum ofp_version packet_in_version;
+    size_t packet_in_size;
+    struct ofpbuf *packet;
+
+    if (protocol == OFPUTIL_P_OF12_OXM) {
+        packet_in_raw = OFPRAW_OFPT12_PACKET_IN;
+        packet_in_version = OFP12_VERSION;
+        packet_in_size = sizeof (struct ofp12_packet_in);
+    } else {
+        packet_in_raw = OFPRAW_OFPT13_PACKET_IN;
+        packet_in_version = OFP13_VERSION;
+        packet_in_size = sizeof (struct ofp13_packet_in);
+    }
+
+    ofputil_packet_in_to_match(pin, &match);
+
+    /* The final argument is just an estimate of the space required. */
+    packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version,
+                              htonl(0), (sizeof(struct flow_metadata) * 2
+                                         + 2 + pin->packet_len));
+    ofpbuf_put_zeros(packet, packet_in_size);
+    oxm_put_match(packet, &match);
+    ofpbuf_put_zeros(packet, 2);
+    ofpbuf_put(packet, pin->packet, pin->packet_len);
+
+    opi = packet->l3;
+    opi->pi.buffer_id = htonl(pin->buffer_id);
+    opi->pi.total_len = htons(pin->total_len);
+    opi->pi.reason = pin->reason;
+    opi->pi.table_id = pin->table_id;
+    if (protocol == OFPUTIL_P_OF13_OXM) {
+        opi->cookie = pin->cookie;
+    }
+
+    return packet;
+}
+
 /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message
  * in the format specified by 'packet_in_format'.  */
 struct ofpbuf *
@@ -3220,83 +3400,30 @@ ofputil_encode_packet_in(const struct ofputil_packet_in *pin,
 {
     struct ofpbuf *packet;
 
-    /* Add OFPT_PACKET_IN. */
-    if (protocol == OFPUTIL_P_OF13_OXM || protocol == OFPUTIL_P_OF12_OXM) {
-        struct ofp13_packet_in *opi;
-        struct match match;
-        enum ofpraw packet_in_raw;
-        enum ofp_version packet_in_version;
-        size_t packet_in_size;
+    switch (protocol) {
+    case OFPUTIL_P_OF10_STD:
+    case OFPUTIL_P_OF10_STD_TID:
+    case OFPUTIL_P_OF10_NXM:
+    case OFPUTIL_P_OF10_NXM_TID:
+        packet = (packet_in_format == NXPIF_NXM
+                  ? ofputil_encode_nx_packet_in(pin)
+                  : ofputil_encode_ofp10_packet_in(pin));
+        break;
 
-        if (protocol == OFPUTIL_P_OF12_OXM) {
-            packet_in_raw = OFPRAW_OFPT12_PACKET_IN;
-            packet_in_version = OFP12_VERSION;
-            packet_in_size = sizeof (struct ofp12_packet_in);
-        } else {
-            packet_in_raw = OFPRAW_OFPT13_PACKET_IN;
-            packet_in_version = OFP13_VERSION;
-            packet_in_size = sizeof (struct ofp13_packet_in);
-        }
+    case OFPUTIL_P_OF11_STD:
+        packet = ofputil_encode_ofp11_packet_in(pin);
+        break;
 
-        ofputil_packet_in_to_match(pin, &match);
-
-        /* The final argument is just an estimate of the space required. */
-        packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version,
-                                  htonl(0), (sizeof(struct flow_metadata) * 2
-                                             + 2 + pin->packet_len));
-        ofpbuf_put_zeros(packet, packet_in_size);
-        oxm_put_match(packet, &match);
-        ofpbuf_put_zeros(packet, 2);
-        ofpbuf_put(packet, pin->packet, pin->packet_len);
-
-        opi = packet->l3;
-        opi->pi.buffer_id = htonl(pin->buffer_id);
-        opi->pi.total_len = htons(pin->total_len);
-        opi->pi.reason = pin->reason;
-        opi->pi.table_id = pin->table_id;
-        if (protocol == OFPUTIL_P_OF13_OXM) {
-            opi->cookie = pin->cookie;
-        }
-    } else if (packet_in_format == NXPIF_OPENFLOW10) {
-        struct ofp10_packet_in *opi;
-
-        packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION,
-                                  htonl(0), pin->packet_len);
-        opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data));
-        opi->total_len = htons(pin->total_len);
-        opi->in_port = htons(ofp_to_u16(pin->fmd.in_port));
-        opi->reason = pin->reason;
-        opi->buffer_id = htonl(pin->buffer_id);
-
-        ofpbuf_put(packet, pin->packet, pin->packet_len);
-    } else if (packet_in_format == NXPIF_NXM) {
-        struct nx_packet_in *npi;
-        struct match match;
-        size_t match_len;
-
-        ofputil_packet_in_to_match(pin, &match);
-
-        /* The final argument is just an estimate of the space required. */
-        packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION,
-                                  htonl(0), (sizeof(struct flow_metadata) * 2
-                                             + 2 + pin->packet_len));
-        ofpbuf_put_zeros(packet, sizeof *npi);
-        match_len = nx_put_match(packet, &match, 0, 0);
-        ofpbuf_put_zeros(packet, 2);
-        ofpbuf_put(packet, pin->packet, pin->packet_len);
-
-        npi = packet->l3;
-        npi->buffer_id = htonl(pin->buffer_id);
-        npi->total_len = htons(pin->total_len);
-        npi->reason = pin->reason;
-        npi->table_id = pin->table_id;
-        npi->cookie = pin->cookie;
-        npi->match_len = htons(match_len);
-    } else {
+    case OFPUTIL_P_OF12_OXM:
+    case OFPUTIL_P_OF13_OXM:
+        packet = ofputil_encode_ofp12_packet_in(pin, protocol);
+        break;
+
+    default:
         NOT_REACHED();
     }
-    ofpmsg_update_length(packet);
 
+    ofpmsg_update_length(packet);
     return packet;
 }
 
@@ -3371,9 +3498,8 @@ ofputil_decode_packet_out(struct ofputil_packet_out *po,
             return error;
         }
 
-        error = ofpacts_pull_openflow11_actions(&b, oh->version,
-                                                ntohs(opo->actions_len),
-                                                ofpacts);
+        error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len),
+                                              oh->version, ofpacts);
         if (error) {
             return error;
         }
@@ -3384,7 +3510,8 @@ ofputil_decode_packet_out(struct ofputil_packet_out *po,
         po->buffer_id = ntohl(opo->buffer_id);
         po->in_port = u16_to_ofp(ntohs(opo->in_port));
 
-        error = ofpacts_pull_openflow10(&b, ntohs(opo->actions_len), ofpacts);
+        error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len),
+                                              oh->version, ofpacts);
         if (error) {
             return error;
         }
@@ -4186,6 +4313,51 @@ ofputil_encode_role_reply(const struct ofp_header *request,
     return buf;
 }
 \f
+struct ofpbuf *
+ofputil_encode_role_status(const struct ofputil_role_status *status,
+                           enum ofputil_protocol protocol)
+{
+    struct ofpbuf *buf;
+    enum ofp_version version;
+    struct ofp14_role_status *rstatus;
+
+    version = ofputil_protocol_to_ofp_version(protocol);
+    buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), 0);
+    rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus);
+    rstatus->role = htonl(status->role);
+    rstatus->reason = status->reason;
+    rstatus->generation_id = htonll(status->generation_id);
+
+    return buf;
+}
+
+enum ofperr
+ofputil_decode_role_status(const struct ofp_header *oh,
+                           struct ofputil_role_status *rs)
+{
+    struct ofpbuf b;
+    enum ofpraw raw;
+    const struct ofp14_role_status *r;
+
+    ofpbuf_use_const(&b, oh, ntohs(oh->length));
+    raw = ofpraw_pull_assert(&b);
+    ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS);
+
+    r = b.l3;
+    if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) &&
+        r->role != htonl(OFPCR12_ROLE_EQUAL) &&
+        r->role != htonl(OFPCR12_ROLE_MASTER) &&
+        r->role != htonl(OFPCR12_ROLE_SLAVE)) {
+        return OFPERR_OFPRRFC_BAD_ROLE;
+    }
+
+    rs->role = ntohl(r->role);
+    rs->generation_id = ntohll(r->generation_id);
+    rs->reason = r->reason;
+
+    return 0;
+}
+
 /* Table stats. */
 
 static void
@@ -4384,7 +4556,7 @@ ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq,
 
     nfmr = ofpbuf_try_pull(msg, sizeof *nfmr);
     if (!nfmr) {
-        VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %zu "
+        VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIuSIZE" "
                      "leftover bytes at end", msg->size);
         return OFPERR_OFPBRC_BAD_LEN;
     }
@@ -4456,6 +4628,7 @@ ofputil_decode_flow_update(struct ofputil_flow_update *update,
 {
     struct nx_flow_update_header *nfuh;
     unsigned int length;
+    struct ofp_header *oh;
 
     if (!msg->l2) {
         msg->l2 = msg->data;
@@ -4470,6 +4643,8 @@ ofputil_decode_flow_update(struct ofputil_flow_update *update,
         goto bad_len;
     }
 
+    oh = msg->l2;
+
     nfuh = msg->data;
     update->event = ntohs(nfuh->event);
     length = ntohs(nfuh->length);
@@ -4518,7 +4693,8 @@ ofputil_decode_flow_update(struct ofputil_flow_update *update,
         }
 
         actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8);
-        error = ofpacts_pull_openflow10(msg, actions_len, ofpacts);
+        error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version,
+                                              ofpacts);
         if (error) {
             return error;
         }
@@ -4534,7 +4710,7 @@ ofputil_decode_flow_update(struct ofputil_flow_update *update,
     }
 
 bad_len:
-    VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %zu "
+    VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIuSIZE" "
                  "leftover bytes at end", msg->size);
     return OFPERR_OFPBRC_BAD_LEN;
 }
@@ -4578,9 +4754,11 @@ ofputil_append_flow_update(const struct ofputil_flow_update *update,
     struct nx_flow_update_header *nfuh;
     struct ofpbuf *msg;
     size_t start_ofs;
+    enum ofp_version version;
 
     msg = ofpbuf_from_list(list_back(replies));
     start_ofs = msg->size;
+    version = ((struct ofp_header *)msg->l2)->version;
 
     if (update->event == NXFME_ABBREV) {
         struct nx_flow_update_abbrev *nfua;
@@ -4593,8 +4771,8 @@ ofputil_append_flow_update(const struct ofputil_flow_update *update,
 
         ofpbuf_put_zeros(msg, sizeof *nfuf);
         match_len = nx_put_match(msg, update->match, htonll(0), htonll(0));
-        ofpacts_put_openflow10(update->ofpacts, update->ofpacts_len, msg);
-
+        ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg,
+                                     version);
         nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf);
         nfuf->reason = htons(update->reason);
         nfuf->priority = htons(update->priority);
@@ -4633,7 +4811,8 @@ ofputil_encode_packet_out(const struct ofputil_packet_out *po,
         msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size);
         ofpbuf_put_zeros(msg, sizeof *opo);
         actions_ofs = msg->size;
-        ofpacts_put_openflow10(po->ofpacts, po->ofpacts_len, msg);
+        ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg,
+                                     ofp_version);
 
         opo = msg->l3;
         opo->buffer_id = htonl(po->buffer_id);
@@ -4650,8 +4829,8 @@ ofputil_encode_packet_out(const struct ofputil_packet_out *po,
 
         msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size);
         ofpbuf_put_zeros(msg, sizeof *opo);
-        len = ofpacts_put_openflow11_actions(po->ofpacts, po->ofpacts_len, msg);
-
+        len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg,
+                                           ofp_version);
         opo = msg->l3;
         opo->buffer_id = htonl(po->buffer_id);
         opo->in_port = ofputil_port_to_ofp11(po->in_port);
@@ -4788,31 +4967,6 @@ ofputil_port_to_ofp11(ofp_port_t ofp10_port)
                  : ofp_to_u16(ofp10_port) + OFPP11_OFFSET);
 }
 
-/* Checks that 'port' is a valid output port for the OFPAT10_OUTPUT action, given
- * that the switch will never have more than 'max_ports' ports.  Returns 0 if
- * 'port' is valid, otherwise an OpenFlow return code. */
-enum ofperr
-ofputil_check_output_port(ofp_port_t port, ofp_port_t max_ports)
-{
-    switch (port) {
-    case OFPP_IN_PORT:
-    case OFPP_TABLE:
-    case OFPP_NORMAL:
-    case OFPP_FLOOD:
-    case OFPP_ALL:
-    case OFPP_CONTROLLER:
-    case OFPP_NONE:
-    case OFPP_LOCAL:
-        return 0;
-
-    default:
-        if (ofp_to_u16(port) < ofp_to_u16(max_ports)) {
-            return 0;
-        }
-        return OFPERR_OFPBAC_BAD_OUT_PORT;
-    }
-}
-
 #define OFPUTIL_NAMED_PORTS                     \
         OFPUTIL_NAMED_PORT(IN_PORT)             \
         OFPUTIL_NAMED_PORT(TABLE)               \
@@ -5019,22 +5173,21 @@ size_t ofputil_count_phy_ports(uint8_t ofp_version, struct ofpbuf *b)
     return b->size / ofputil_get_phy_port_size(ofp_version);
 }
 
-/* Returns the 'enum ofputil_action_code' corresponding to 'name' (e.g. if
- * 'name' is "output" then the return value is OFPUTIL_OFPAT10_OUTPUT), or -1 if
- * 'name' is not the name of any action.
- *
- * ofp-util.def lists the mapping from names to action. */
-int
-ofputil_action_code_from_name(const char *name)
-{
-    static const char *const names[OFPUTIL_N_ACTIONS] = {
-        NULL,
+/* ofp-util.def lists the mapping from names to action. */
+static const char *const names[OFPUTIL_N_ACTIONS] = {
+    NULL,
 #define OFPAT10_ACTION(ENUM, STRUCT, NAME)             NAME,
 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME,
 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME)   NAME,
 #include "ofp-util.def"
-    };
+};
 
+/* Returns the 'enum ofputil_action_code' corresponding to 'name' (e.g. if
+ * 'name' is "output" then the return value is OFPUTIL_OFPAT10_OUTPUT), or -1
+ * if 'name' is not the name of any action. */
+int
+ofputil_action_code_from_name(const char *name)
+{
     const char *const *p;
 
     for (p = names; p < &names[ARRAY_SIZE(names)]; p++) {
@@ -5045,6 +5198,15 @@ ofputil_action_code_from_name(const char *name)
     return -1;
 }
 
+/* Returns name corresponding to the 'enum ofputil_action_code',
+ * or "Unkonwn action", if the name is not available. */
+const char *
+ofputil_action_name_from_code(enum ofputil_action_code code)
+{
+    return code < (int)OFPUTIL_N_ACTIONS && names[code] ? names[code]
+        : "Unknown action";
+}
+
 /* Appends an action of the type specified by 'code' to 'buf' and returns the
  * action.  Initializes the parts of 'action' that identify it as having type
  * <ENUM> and length 'sizeof *action' and zeros the rest.  For actions that
@@ -5572,7 +5734,7 @@ ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg)
     }
 
  bad_len:
-    VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %zu leftover "
+    VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIuSIZE" leftover "
                  "bytes at end", msg->size);
     return OFPERR_OFPBRC_BAD_LEN;
 }
@@ -5882,13 +6044,13 @@ ofputil_decode_group_stats_reply(struct ofpbuf *msg,
     }
 
     if (!ogs11) {
-        VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %zu leftover bytes at end",
+        VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIuSIZE" leftover bytes at end",
                      ofpraw_get_name(raw), msg->size);
         return OFPERR_OFPBRC_BAD_LEN;
     }
     length = ntohs(ogs11->length);
     if (length < sizeof base_len) {
-        VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %zu",
+        VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE,
                      ofpraw_get_name(raw), length);
         return OFPERR_OFPBRC_BAD_LEN;
     }
@@ -5901,7 +6063,7 @@ ofputil_decode_group_stats_reply(struct ofpbuf *msg,
     gs->n_buckets = (length - base_len) / sizeof *obc;
     obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc);
     if (!obc) {
-        VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %zu leftover bytes at end",
+        VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIuSIZE" leftover bytes at end",
                      ofpraw_get_name(raw), msg->size);
         return OFPERR_OFPBRC_BAD_LEN;
     }
@@ -5927,6 +6089,7 @@ ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds,
     struct ofp11_group_desc_stats *ogds;
     struct ofputil_bucket *bucket;
     size_t start_ogds;
+    enum ofp_version version = ((struct ofp_header *)reply->data)->version;
 
     start_ogds = reply->size;
     ofpbuf_put_zeros(reply, sizeof *ogds);
@@ -5936,9 +6099,8 @@ ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds,
 
         start_ob = reply->size;
         ofpbuf_put_zeros(reply, sizeof *ob);
-        ofpacts_put_openflow11_actions(bucket->ofpacts,
-                                       bucket->ofpacts_len, reply);
-
+        ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len,
+                                     reply, version);
         ob = ofpbuf_at_assert(reply, start_ob, sizeof *ob);
         ob->len = htons(reply->size - start_ob);
         ob->weight = htons(bucket->weight);
@@ -5954,8 +6116,8 @@ ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds,
 }
 
 static enum ofperr
-ofputil_pull_buckets(struct ofpbuf *msg, enum ofp_version version,
-                     size_t buckets_length, struct list *buckets)
+ofputil_pull_buckets(struct ofpbuf *msg, size_t buckets_length,
+                     enum ofp_version version, struct list *buckets)
 {
     struct ofp11_bucket *ob;
 
@@ -5970,26 +6132,26 @@ ofputil_pull_buckets(struct ofpbuf *msg, enum ofp_version version,
               ? ofpbuf_try_pull(msg, sizeof *ob)
               : NULL);
         if (!ob) {
-            VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %zu leftover bytes",
+            VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes",
                          buckets_length);
         }
 
         ob_len = ntohs(ob->len);
         if (ob_len < sizeof *ob) {
             VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length "
-                         "%zu is not valid", ob_len);
+                         "%"PRIuSIZE" is not valid", ob_len);
             return OFPERR_OFPGMFC_BAD_BUCKET;
         } else if (ob_len > buckets_length) {
             VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length "
-                         "%zu exceeds remaining buckets data size %zu",
+                         "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE,
                          ob_len, buckets_length);
             return OFPERR_OFPGMFC_BAD_BUCKET;
         }
         buckets_length -= ob_len;
 
         ofpbuf_init(&ofpacts, 0);
-        error = ofpacts_pull_openflow11_actions(msg, version,
-                                                ob_len - sizeof *ob, &ofpacts);
+        error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob,
+                                              version, &ofpacts);
         if (error) {
             ofpbuf_uninit(&ofpacts);
             ofputil_bucket_list_destroy(buckets);
@@ -6040,7 +6202,7 @@ ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd,
 
     ogds = ofpbuf_try_pull(msg, sizeof *ogds);
     if (!ogds) {
-        VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %zu "
+        VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIuSIZE" "
                      "leftover bytes at end", msg->size);
         return OFPERR_OFPBRC_BAD_LEN;
     }
@@ -6050,11 +6212,11 @@ ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd,
     length = ntohs(ogds->length);
     if (length < sizeof *ogds || length - sizeof *ogds > msg->size) {
         VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid "
-                     "length %zu", length);
+                     "length %"PRIuSIZE, length);
         return OFPERR_OFPBRC_BAD_LEN;
     }
 
-    return ofputil_pull_buckets(msg, version, length - sizeof *ogds,
+    return ofputil_pull_buckets(msg, length - sizeof *ogds, version,
                                 &gd->buckets);
 }
 
@@ -6090,14 +6252,15 @@ ofputil_encode_group_mod(enum ofp_version ofp_version,
     case OFP13_VERSION: {
         b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0);
         start_ogm = b->size;
-        ofpbuf_put_uninit(b, sizeof *ogm);
+        ofpbuf_put_zeros(b, sizeof *ogm);
 
         LIST_FOR_EACH (bucket, list_node, &gm->buckets) {
             start_bucket = b->size;
-            ofpbuf_put_uninit(b, sizeof *ob);
+            ofpbuf_put_zeros(b, sizeof *ob);
             if (bucket->ofpacts && bucket->ofpacts_len) {
-                ofpacts_put_openflow11_actions(bucket->ofpacts,
-                                bucket->ofpacts_len, b);
+                ofpacts_put_openflow_actions(bucket->ofpacts,
+                                             bucket->ofpacts_len, b,
+                                             ofp_version);
             }
             ob = ofpbuf_at_assert(b, start_bucket, sizeof *ob);
             ob->len = htons(b->size - start_bucket);;
@@ -6108,7 +6271,6 @@ ofputil_encode_group_mod(enum ofp_version ofp_version,
         ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm);
         ogm->command = htons(gm->command);
         ogm->type = gm->type;
-        ogm->pad = 0;
         ogm->group_id = htonl(gm->group_id);
 
         break;
@@ -6129,6 +6291,8 @@ ofputil_decode_group_mod(const struct ofp_header *oh,
 {
     const struct ofp11_group_mod *ogm;
     struct ofpbuf msg;
+    struct ofputil_bucket *bucket;
+    enum ofperr err;
 
     ofpbuf_use_const(&msg, oh, ntohs(oh->length));
     ofpraw_pull_assert(&msg);
@@ -6138,7 +6302,32 @@ ofputil_decode_group_mod(const struct ofp_header *oh,
     gm->type = ogm->type;
     gm->group_id = ntohl(ogm->group_id);
 
-    return ofputil_pull_buckets(&msg, oh->version, msg.size, &gm->buckets);
+    err = ofputil_pull_buckets(&msg, msg.size, oh->version, &gm->buckets);
+    if (err) {
+        return err;
+    }
+
+    LIST_FOR_EACH (bucket, list_node, &gm->buckets) {
+        switch (gm->type) {
+        case OFPGT11_ALL:
+        case OFPGT11_INDIRECT:
+            if (ofputil_bucket_has_liveness(bucket)) {
+                return OFPERR_OFPGMFC_WATCH_UNSUPPORTED;
+            }
+            break;
+        case OFPGT11_SELECT:
+            break;
+        case OFPGT11_FF:
+            if (!ofputil_bucket_has_liveness(bucket)) {
+                return OFPERR_OFPGMFC_INVALID_GROUP;
+            }
+            break;
+        default:
+            NOT_REACHED();
+        }
+    }
+
+    return 0;
 }
 
 /* Parse a queue status request message into 'oqsr'.
@@ -6339,7 +6528,7 @@ ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg)
     }
 
  bad_len:
-    VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %zu leftover "
+    VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIuSIZE" leftover "
                  "bytes at end", msg->size);
     return OFPERR_OFPBRC_BAD_LEN;
 }