pinsched: Remove obsolete ofpbuf_trim().
[cascardo/ovs.git] / ofproto / ofproto-dpif.c
index ef1ad18..8186f6b 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc.
+ * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -303,7 +303,7 @@ struct ofproto_dpif {
     /* Special OpenFlow rules. */
     struct rule_dpif *miss_rule; /* Sends flow table misses to controller. */
     struct rule_dpif *no_packet_in_rule; /* Drops flow table misses. */
-    struct rule_dpif *drop_frags_rule; /* Used in OFPC_FRAG_DROP mode. */
+    struct rule_dpif *drop_frags_rule; /* Used in OFPUTIL_FRAG_DROP mode. */
 
     /* Bridging. */
     struct netflow *netflow;
@@ -1122,6 +1122,7 @@ check_variable_length_userdata(struct dpif_backer *backer)
     execute.packet = &packet;
     execute.needs_help = false;
     execute.probe = true;
+    execute.mtu = 0;
 
     error = dpif_execute(backer->dpif, &execute);
 
@@ -1220,6 +1221,7 @@ check_masked_set_action(struct dpif_backer *backer)
     execute.packet = &packet;
     execute.needs_help = false;
     execute.probe = true;
+    execute.mtu = 0;
 
     error = dpif_execute(backer->dpif, &execute);
 
@@ -1234,6 +1236,48 @@ check_masked_set_action(struct dpif_backer *backer)
     return !error;
 }
 
+#define CHECK_FEATURE__(NAME, SUPPORT, FIELD, VALUE)                        \
+static bool                                                                 \
+check_##NAME(struct dpif_backer *backer)                                    \
+{                                                                           \
+    struct flow flow;                                                       \
+    struct odputil_keybuf keybuf;                                           \
+    struct ofpbuf key;                                                      \
+    bool enable;                                                            \
+    struct odp_flow_key_parms odp_parms = {                                 \
+        .flow = &flow,                                                      \
+        .support = {                                                        \
+            .SUPPORT = true,                                                \
+        },                                                                  \
+    };                                                                      \
+                                                                            \
+    memset(&flow, 0, sizeof flow);                                          \
+    flow.FIELD = VALUE;                                                     \
+                                                                            \
+    ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);                         \
+    odp_flow_key_from_flow(&odp_parms, &key);                               \
+    enable = dpif_probe_feature(backer->dpif, #NAME, &key, NULL);           \
+                                                                            \
+    if (enable) {                                                           \
+        VLOG_INFO("%s: Datapath supports "#NAME, dpif_name(backer->dpif));  \
+    } else {                                                                \
+        VLOG_INFO("%s: Datapath does not support "#NAME,                    \
+                  dpif_name(backer->dpif));                                 \
+    }                                                                       \
+                                                                            \
+    return enable;                                                          \
+}
+#define CHECK_FEATURE(FIELD) CHECK_FEATURE__(FIELD, FIELD, FIELD, 1)
+
+CHECK_FEATURE(ct_state)
+CHECK_FEATURE(ct_zone)
+CHECK_FEATURE(ct_mark)
+CHECK_FEATURE__(ct_label, ct_label, ct_label.u64.lo, 1)
+CHECK_FEATURE__(ct_state_nat, ct_state, ct_state, CS_TRACKED|CS_SRC_NAT)
+
+#undef CHECK_FEATURE
+#undef CHECK_FEATURE__
+
 static void
 check_support(struct dpif_backer *backer)
 {
@@ -1245,6 +1289,13 @@ check_support(struct dpif_backer *backer)
     backer->support.masked_set_action = check_masked_set_action(backer);
     backer->support.ufid = check_ufid(backer);
     backer->support.tnl_push_pop = dpif_supports_tnl_push_pop(backer->dpif);
+
+    backer->support.odp.ct_state = check_ct_state(backer);
+    backer->support.odp.ct_zone = check_ct_zone(backer);
+    backer->support.odp.ct_mark = check_ct_mark(backer);
+    backer->support.odp.ct_label = check_ct_label(backer);
+
+    backer->support.odp.ct_state_nat = check_ct_state_nat(backer);
 }
 
 static int
@@ -1356,7 +1407,6 @@ add_internal_flows(struct ofproto_dpif *ofproto)
     controller->max_len = UINT16_MAX;
     controller->controller_id = 0;
     controller->reason = OFPR_NO_MATCH;
-    ofpact_pad(&ofpacts);
 
     error = add_internal_miss_flow(ofproto, id++, &ofpacts,
                                    &ofproto->miss_rule);
@@ -1587,8 +1637,6 @@ wait(struct ofproto *ofproto_)
     mcast_snooping_wait(ofproto->ms);
     stp_wait(ofproto);
     if (ofproto->backer->need_revalidate) {
-        /* Shouldn't happen, but if it does just go around again. */
-        VLOG_DBG_RL(&rl, "need revalidate in ofproto_wait_cb()");
         poll_immediate_wake();
     }
 
@@ -2296,9 +2344,14 @@ rstp_run(struct ofproto_dpif *ofproto)
         }
 
         if (rstp_shift_root_learned_address(ofproto->rstp)) {
-            bundle_move(((struct ofport_dpif *)rstp_get_old_root_aux(ofproto->rstp))->bundle,
-                        ((struct ofport_dpif *)rstp_get_new_root_aux(ofproto->rstp))->bundle);
-            rstp_reset_root_changed(ofproto->rstp);
+            struct ofport_dpif *old_root_aux =
+                (struct ofport_dpif *)rstp_get_old_root_aux(ofproto->rstp);
+            struct ofport_dpif *new_root_aux =
+                (struct ofport_dpif *)rstp_get_new_root_aux(ofproto->rstp);
+            if (old_root_aux != NULL && new_root_aux != NULL) {
+                bundle_move(old_root_aux->bundle, new_root_aux->bundle);
+                rstp_reset_root_changed(ofproto->rstp);
+            }
         }
     }
 }
@@ -2538,8 +2591,11 @@ set_rstp_port(struct ofport *ofport_,
 
     if (!s || !s->enable) {
         if (rp) {
-            rstp_port_unref(rp);
+            rstp_port_set_aux(rp, NULL);
+            rstp_port_set_state(rp, RSTP_DISABLED);
+            rstp_port_set_mac_operational(rp, false);
             ofport->rstp_port = NULL;
+            rstp_port_unref(rp);
             update_rstp_port_state(ofport);
         }
         return;
@@ -3674,7 +3730,10 @@ ofproto_dpif_execute_actions__(struct ofproto_dpif *ofproto,
     xin.resubmit_stats = &stats;
     xin.recurse = recurse;
     xin.resubmits = resubmits;
-    xlate_actions(&xin, &xout);
+    if (xlate_actions(&xin, &xout) != XLATE_OK) {
+        error = EINVAL;
+        goto out;
+    }
 
     execute.actions = odp_actions.data;
     execute.actions_len = odp_actions.size;
@@ -3683,6 +3742,7 @@ ofproto_dpif_execute_actions__(struct ofproto_dpif *ofproto,
     execute.packet = packet;
     execute.needs_help = (xout.slow & SLOW_ACTION) != 0;
     execute.probe = false;
+    execute.mtu = 0;
 
     /* Fix up in_port. */
     in_port = flow->in_port.ofp_port;
@@ -3692,7 +3752,7 @@ ofproto_dpif_execute_actions__(struct ofproto_dpif *ofproto,
     execute.packet->md.in_port.odp_port = ofp_port_to_odp_port(ofproto, in_port);
 
     error = dpif_execute(ofproto->backer->dpif, &execute);
-
+out:
     xlate_out_uninit(&xout);
     ofpbuf_uninit(&odp_actions);
 
@@ -3842,13 +3902,13 @@ rule_dpif_lookup_from_table(struct ofproto_dpif *ofproto,
     /* We always unwildcard nw_frag (for IP), so they
      * need not be unwildcarded here. */
     if (flow->nw_frag & FLOW_NW_FRAG_ANY
-        && ofproto->up.frag_handling != OFPC_FRAG_NX_MATCH) {
-        if (ofproto->up.frag_handling == OFPC_FRAG_NORMAL) {
+        && ofproto->up.frag_handling != OFPUTIL_FRAG_NX_MATCH) {
+        if (ofproto->up.frag_handling == OFPUTIL_FRAG_NORMAL) {
             /* We must pretend that transport ports are unavailable. */
             flow->tp_src = htons(0);
             flow->tp_dst = htons(0);
         } else {
-            /* Must be OFPC_FRAG_DROP (we don't have OFPC_FRAG_REASM).
+            /* Must be OFPUTIL_FRAG_DROP (we don't have OFPUTIL_FRAG_REASM).
              * Use the drop_frags_rule (which cannot disappear). */
             rule = ofproto->drop_frags_rule;
             if (stats) {
@@ -3954,11 +4014,106 @@ rule_dealloc(struct rule *rule_)
     free(rule);
 }
 
+static enum ofperr
+check_mask(struct ofproto_dpif *ofproto, const struct miniflow *flow)
+{
+    const struct odp_support *support;
+    uint16_t ct_state, ct_zone;
+    ovs_u128 ct_label;
+    uint32_t ct_mark;
+
+    support = &ofproto_dpif_get_support(ofproto)->odp;
+    ct_state = MINIFLOW_GET_U16(flow, ct_state);
+    if (support->ct_state && support->ct_zone && support->ct_mark
+        && support->ct_label && support->ct_state_nat) {
+        return ct_state & CS_UNSUPPORTED_MASK ? OFPERR_OFPBMC_BAD_MASK : 0;
+    }
+
+    ct_zone = MINIFLOW_GET_U16(flow, ct_zone);
+    ct_mark = MINIFLOW_GET_U32(flow, ct_mark);
+    ct_label = MINIFLOW_GET_U128(flow, ct_label);
+
+    if ((ct_state && !support->ct_state)
+        || (ct_state & CS_UNSUPPORTED_MASK)
+        || ((ct_state & (CS_SRC_NAT | CS_DST_NAT)) && !support->ct_state_nat)
+        || (ct_zone && !support->ct_zone)
+        || (ct_mark && !support->ct_mark)
+        || (!ovs_u128_is_zero(&ct_label) && !support->ct_label)) {
+        return OFPERR_OFPBMC_BAD_MASK;
+    }
+
+    return 0;
+}
+
+static enum ofperr
+check_actions(const struct ofproto_dpif *ofproto,
+              const struct rule_actions *const actions)
+{
+    const struct ofpact *ofpact;
+
+    OFPACT_FOR_EACH (ofpact, actions->ofpacts, actions->ofpacts_len) {
+        const struct odp_support *support;
+        const struct ofpact_conntrack *ct;
+        const struct ofpact *a;
+
+        if (ofpact->type != OFPACT_CT) {
+            continue;
+        }
+
+        ct = CONTAINER_OF(ofpact, struct ofpact_conntrack, ofpact);
+        support = &ofproto_dpif_get_support(ofproto)->odp;
+
+        if (!support->ct_state) {
+            return OFPERR_OFPBAC_BAD_TYPE;
+        }
+        if ((ct->zone_imm || ct->zone_src.field) && !support->ct_zone) {
+            return OFPERR_OFPBAC_BAD_ARGUMENT;
+        }
+
+        OFPACT_FOR_EACH(a, ct->actions, ofpact_ct_get_action_len(ct)) {
+            const struct mf_field *dst = ofpact_get_mf_dst(a);
+
+            if (a->type == OFPACT_NAT && !support->ct_state_nat) {
+                /* The backer doesn't seem to support the NAT bits in
+                 * 'ct_state': assume that it doesn't support the NAT
+                 * action. */
+                return OFPERR_OFPBAC_BAD_TYPE;
+            }
+            if (dst && ((dst->id == MFF_CT_MARK && !support->ct_mark)
+                        || (dst->id == MFF_CT_LABEL && !support->ct_label))) {
+                return OFPERR_OFPBAC_BAD_SET_ARGUMENT;
+            }
+        }
+    }
+
+    return 0;
+}
+
+static enum ofperr
+rule_check(struct rule *rule)
+{
+    struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->ofproto);
+    enum ofperr err;
+
+    err = check_mask(ofproto, &rule->cr.match.mask->masks);
+    if (err) {
+        return err;
+    }
+    return check_actions(ofproto, rule->actions);
+}
+
 static enum ofperr
 rule_construct(struct rule *rule_)
     OVS_NO_THREAD_SAFETY_ANALYSIS
 {
     struct rule_dpif *rule = rule_dpif_cast(rule_);
+    int error;
+
+    error = rule_check(rule_);
+    if (error) {
+        return error;
+    }
+
     ovs_mutex_init_adaptive(&rule->stats_mutex);
     rule->stats.n_packets = 0;
     rule->stats.n_bytes = 0;
@@ -4245,10 +4400,10 @@ get_datapath_version(const struct ofproto *ofproto_)
 
 static bool
 set_frag_handling(struct ofproto *ofproto_,
-                  enum ofp_config_flags frag_handling)
+                  enum ofputil_frag_handling frag_handling)
 {
     struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
-    if (frag_handling != OFPC_FRAG_REASM) {
+    if (frag_handling != OFPUTIL_FRAG_REASM) {
         ofproto->backer->need_revalidate = REV_RECONFIGURE;
         return true;
     } else {
@@ -4442,7 +4597,7 @@ ofproto_unixctl_mcast_snooping_show(struct unixctl_conn *conn,
             ofputil_port_to_string(ofbundle_get_a_port(bundle)->up.ofp_port,
                                    name, sizeof name);
             ds_put_format(&ds, "%5s  %4d  ", name, grp->vlan);
-            print_ipv6_mapped(&ds, &grp->addr);
+            ipv6_format_mapped(&grp->addr, &ds);
             ds_put_format(&ds, "         %3d\n",
                           mcast_bundle_age(ofproto->ms, b));
         }
@@ -4848,13 +5003,18 @@ ofproto_unixctl_trace_actions(struct unixctl_conn *conn, int argc,
         goto exit;
     }
     if (enforce_consistency) {
-        retval = ofpacts_check_consistency(ofpacts.data, ofpacts.size,
-                                           &flow, u16_to_ofp(ofproto->up.max_ports),
-                                           0, 0, usable_protocols);
+        retval = ofpacts_check_consistency(ofpacts.data, ofpacts.size, &flow,
+                                           u16_to_ofp(ofproto->up.max_ports),
+                                           0, ofproto->up.n_tables,
+                                           usable_protocols);
     } else {
         retval = ofpacts_check(ofpacts.data, ofpacts.size, &flow,
-                               u16_to_ofp(ofproto->up.max_ports), 0, 0,
-                               &usable_protocols);
+                               u16_to_ofp(ofproto->up.max_ports), 0,
+                               ofproto->up.n_tables, &usable_protocols);
+    }
+    if (!retval) {
+        retval = ofproto_check_ofpacts(&ofproto->up, ofpacts.data,
+                                       ofpacts.size);
     }
 
     if (retval) {
@@ -4890,6 +5050,7 @@ ofproto_trace(struct ofproto_dpif *ofproto, struct flow *flow,
               struct ds *ds)
 {
     struct trace_ctx trace;
+    enum xlate_error error;
 
     ds_put_format(ds, "Bridge: %s\n", ofproto->up.name);
     ds_put_cstr(ds, "Flow: ");
@@ -4909,8 +5070,7 @@ ofproto_trace(struct ofproto_dpif *ofproto, struct flow *flow,
     trace.xin.resubmit_hook = trace_resubmit;
     trace.xin.report_hook = trace_report_valist;
 
-    xlate_actions(&trace.xin, &trace.xout);
-
+    error = xlate_actions(&trace.xin, &trace.xout);
     ds_put_char(ds, '\n');
     trace_format_flow(ds, 0, "Final flow", &trace);
     trace_format_megaflow(ds, 0, "Megaflow", &trace);
@@ -4918,7 +5078,10 @@ ofproto_trace(struct ofproto_dpif *ofproto, struct flow *flow,
     ds_put_cstr(ds, "Datapath actions: ");
     format_odp_actions(ds, trace.odp_actions.data, trace.odp_actions.size);
 
-    if (trace.xout.slow) {
+    if (error != XLATE_OK) {
+        ds_put_format(ds, "\nTranslation failed (%s), packet is dropped.\n",
+                      xlate_strerror(error));
+    } else if (trace.xout.slow) {
         enum slow_path_reason slow;
 
         ds_put_cstr(ds, "\nThis flow is handled by the userspace "
@@ -5164,6 +5327,8 @@ disable_tnl_push_pop(struct unixctl_conn *conn OVS_UNUSED, int argc OVS_UNUSED,
         ofproto_use_tnl_push_pop = true;
         unixctl_command_reply(conn, "Tunnel push-pop on");
         ofproto_revalidate_all_backers();
+    } else {
+        unixctl_command_reply_error(conn, "Invalid argument");
     }
 }
 
@@ -5494,22 +5659,17 @@ ofproto_dpif_add_internal_flow(struct ofproto_dpif *ofproto,
     struct rule_dpif *rule;
     int error;
 
-    ofm.fm.match = *match;
-    ofm.fm.priority = priority;
-    ofm.fm.new_cookie = htonll(0);
-    ofm.fm.cookie = htonll(0);
-    ofm.fm.cookie_mask = htonll(0);
-    ofm.fm.modify_cookie = false;
-    ofm.fm.table_id = TBL_INTERNAL;
-    ofm.fm.command = OFPFC_ADD;
-    ofm.fm.idle_timeout = idle_timeout;
-    ofm.fm.hard_timeout = 0;
-    ofm.fm.importance = 0;
-    ofm.fm.buffer_id = 0;
-    ofm.fm.out_port = 0;
-    ofm.fm.flags = OFPUTIL_FF_HIDDEN_FIELDS | OFPUTIL_FF_NO_READONLY;
-    ofm.fm.ofpacts = ofpacts->data;
-    ofm.fm.ofpacts_len = ofpacts->size;
+    ofm.fm = (struct ofputil_flow_mod) {
+        .match = *match,
+        .priority = priority,
+        .table_id = TBL_INTERNAL,
+        .command = OFPFC_ADD,
+        .idle_timeout = idle_timeout,
+        .flags = OFPUTIL_FF_HIDDEN_FIELDS | OFPUTIL_FF_NO_READONLY,
+        .ofpacts = ofpacts->data,
+        .ofpacts_len = ofpacts->size,
+        .delete_reason = OVS_OFPRR_NONE,
+    };
 
     error = ofproto_flow_mod(&ofproto->up, &ofm);
     if (error) {
@@ -5538,15 +5698,13 @@ ofproto_dpif_delete_internal_flow(struct ofproto_dpif *ofproto,
     struct ofproto_flow_mod ofm;
     int error;
 
-    ofm.fm.match = *match;
-    ofm.fm.priority = priority;
-    ofm.fm.new_cookie = htonll(0);
-    ofm.fm.cookie = htonll(0);
-    ofm.fm.cookie_mask = htonll(0);
-    ofm.fm.modify_cookie = false;
-    ofm.fm.table_id = TBL_INTERNAL;
-    ofm.fm.flags = OFPUTIL_FF_HIDDEN_FIELDS | OFPUTIL_FF_NO_READONLY;
-    ofm.fm.command = OFPFC_DELETE_STRICT;
+    ofm.fm = (struct ofputil_flow_mod) {
+        .match = *match,
+        .priority = priority,
+        .table_id = TBL_INTERNAL,
+        .flags = OFPUTIL_FF_HIDDEN_FIELDS | OFPUTIL_FF_NO_READONLY,
+        .command = OFPFC_DELETE_STRICT,
+    };
 
     error = ofproto_flow_mod(&ofproto->up, &ofm);
     if (error) {