json: Move from lib to include/openvswitch.
[cascardo/ovs.git] / ofproto / ofproto.c
index 72b1d34..dcb0a08 100644 (file)
  */
 
 #include <config.h>
-#include "ofproto.h"
 #include <errno.h>
 #include <inttypes.h>
 #include <stdbool.h>
 #include <stdlib.h>
 #include <unistd.h>
+
 #include "bitmap.h"
+#include "bundles.h"
 #include "byte-order.h"
 #include "classifier.h"
 #include "connectivity.h"
 #include "connmgr.h"
 #include "coverage.h"
-#include "openvswitch/dynamic-string.h"
+#include "dp-packet.h"
 #include "hash.h"
-#include "hmap.h"
-#include "openvswitch/meta-flow.h"
+#include "openvswitch/hmap.h"
 #include "netdev.h"
 #include "nx-match.h"
-#include "ofp-actions.h"
-#include "ofp-msgs.h"
-#include "ofp-print.h"
-#include "ofp-util.h"
-#include "openvswitch/ofpbuf.h"
+#include "ofproto.h"
 #include "ofproto-provider.h"
 #include "openflow/nicira-ext.h"
 #include "openflow/openflow.h"
+#include "openvswitch/dynamic-string.h"
+#include "openvswitch/meta-flow.h"
+#include "openvswitch/ofp-actions.h"
+#include "openvswitch/ofp-errors.h"
+#include "openvswitch/ofp-msgs.h"
+#include "openvswitch/ofp-print.h"
+#include "openvswitch/ofp-util.h"
+#include "openvswitch/ofpbuf.h"
+#include "openvswitch/vlog.h"
 #include "ovs-rcu.h"
-#include "dp-packet.h"
 #include "packets.h"
 #include "pinsched.h"
 #include "pktbuf.h"
 #include "poll-loop.h"
 #include "random.h"
 #include "seq.h"
-#include "shash.h"
+#include "openvswitch/shash.h"
 #include "simap.h"
 #include "smap.h"
 #include "sset.h"
@@ -58,9 +62,7 @@
 #include "tun-metadata.h"
 #include "unaligned.h"
 #include "unixctl.h"
-#include "openvswitch/ofp-errors.h"
-#include "openvswitch/vlog.h"
-#include "bundles.h"
+#include "util.h"
 
 VLOG_DEFINE_THIS_MODULE(ofproto);
 
@@ -218,6 +220,7 @@ static void learned_cookies_flush(struct ofproto *, struct ovs_list *dead_cookie
 /* ofport. */
 static void ofport_destroy__(struct ofport *) OVS_EXCLUDED(ofproto_mutex);
 static void ofport_destroy(struct ofport *, bool del);
+static inline bool ofport_is_internal(const struct ofport *);
 
 static int update_port(struct ofproto *, const char *devname);
 static int init_ports(struct ofproto *);
@@ -319,6 +322,7 @@ static uint64_t pick_datapath_id(const struct ofproto *);
 static uint64_t pick_fallback_dpid(void);
 static void ofproto_destroy__(struct ofproto *);
 static void update_mtu(struct ofproto *, struct ofport *);
+static void update_mtu_ofproto(struct ofproto *);
 static void meter_delete(struct ofproto *, uint32_t first, uint32_t last);
 static void meter_insert_rule(struct rule *);
 
@@ -559,8 +563,6 @@ ofproto_create(const char *datapath_name, const char *datapath_type,
     ovs_list_init(&ofproto->expirable);
     ofproto->connmgr = connmgr_create(ofproto, datapath_name, datapath_name);
     guarded_list_init(&ofproto->rule_executes);
-    ofproto->vlan_bitmap = NULL;
-    ofproto->vlans_changed = false;
     ofproto->min_mtu = INT_MAX;
     ovs_rwlock_init(&ofproto->groups_rwlock);
     hmap_init(&ofproto->groups);
@@ -783,8 +785,7 @@ void
 ofproto_set_cpu_mask(const char *cmask)
 {
     free(pmd_cpu_mask);
-
-    pmd_cpu_mask = cmask ? xstrdup(cmask) : NULL;
+    pmd_cpu_mask = nullable_xstrdup(cmask);
 }
 
 void
@@ -810,7 +811,7 @@ void
 ofproto_set_dp_desc(struct ofproto *p, const char *dp_desc)
 {
     free(p->dp_desc);
-    p->dp_desc = dp_desc ? xstrdup(dp_desc) : NULL;
+    p->dp_desc = nullable_xstrdup(dp_desc);
 }
 
 int
@@ -862,6 +863,64 @@ ofproto_set_ipfix(struct ofproto *ofproto,
     }
 }
 
+static int
+ofproto_get_ipfix_stats(struct ofproto *ofproto,
+                        bool bridge_ipfix,
+                        struct ovs_list *replies)
+{
+    int error;
+
+    if (ofproto->ofproto_class->get_ipfix_stats) {
+        error = ofproto->ofproto_class->get_ipfix_stats(ofproto,
+                                                          bridge_ipfix,
+                                                          replies);
+    } else {
+        error = EOPNOTSUPP;
+    }
+
+    return error;
+}
+
+static enum ofperr
+handle_ipfix_bridge_stats_request(struct ofconn *ofconn,
+                                  const struct ofp_header *request)
+{
+    struct ofproto *ofproto = ofconn_get_ofproto(ofconn);
+    struct ovs_list replies;
+    enum ofperr error;
+
+    ofpmp_init(&replies, request);
+    error = ofproto_get_ipfix_stats(ofproto, true, &replies);
+
+    if (!error) {
+        ofconn_send_replies(ofconn, &replies);
+    } else {
+        ofpbuf_list_delete(&replies);
+    }
+
+    return error;
+}
+
+static enum ofperr
+handle_ipfix_flow_stats_request(struct ofconn *ofconn,
+                                const struct ofp_header *request)
+{
+    struct ofproto *ofproto = ofconn_get_ofproto(ofconn);
+    struct ovs_list replies;
+    enum ofperr error;
+
+    ofpmp_init(&replies, request);
+    error = ofproto_get_ipfix_stats(ofproto, false, &replies);
+
+    if (!error) {
+        ofconn_send_replies(ofconn, &replies);
+    } else {
+        ofpbuf_list_delete(&replies);
+    }
+
+    return error;
+}
+
 void
 ofproto_set_flow_restore_wait(bool flow_restore_wait_db)
 {
@@ -1474,7 +1533,9 @@ ofproto_rule_delete(struct ofproto *ofproto, struct rule *rule)
             OVS_NOT_REACHED();
         }
         ofproto_rule_remove__(rule->ofproto, rule);
-        ofproto->ofproto_class->rule_delete(rule);
+        if (ofproto->ofproto_class->rule_delete) {
+            ofproto->ofproto_class->rule_delete(rule);
+        }
         ofproto_rule_unref(rule);
     }
     ovs_mutex_unlock(&ofproto_mutex);
@@ -1557,8 +1618,6 @@ ofproto_destroy__(struct ofproto *ofproto)
     ovs_assert(hmap_is_empty(&ofproto->learned_cookies));
     hmap_destroy(&ofproto->learned_cookies);
 
-    free(ofproto->vlan_bitmap);
-
     ofproto->ofproto_class->dealloc(ofproto);
 }
 
@@ -1577,7 +1636,7 @@ ofproto_destroy(struct ofproto *p, bool del)
     OVS_EXCLUDED(ofproto_mutex)
 {
     struct ofport *ofport, *next_ofport;
-    struct ofport_usage *usage, *next_usage;
+    struct ofport_usage *usage;
 
     if (!p) {
         return;
@@ -1595,8 +1654,7 @@ ofproto_destroy(struct ofproto *p, bool del)
         ofport_destroy(ofport, del);
     }
 
-    HMAP_FOR_EACH_SAFE (usage, next_usage, hmap_node, &p->ofport_usage) {
-        hmap_remove(&p->ofport_usage, &usage->hmap_node);
+    HMAP_FOR_EACH_POP (usage, hmap_node, &p->ofport_usage) {
         free(usage);
     }
 
@@ -2390,9 +2448,15 @@ error:
 static void
 ofport_remove(struct ofport *ofport)
 {
+    struct ofproto *p = ofport->ofproto;
+    bool is_internal = ofport_is_internal(ofport);
+
     connmgr_send_port_status(ofport->ofproto->connmgr, NULL, &ofport->pp,
                              OFPPR_DELETE);
     ofport_destroy(ofport, true);
+    if (!is_internal) {
+        update_mtu_ofproto(p);
+    }
 }
 
 /* If 'ofproto' contains an ofport named 'name', removes it from 'ofproto' and
@@ -2445,9 +2509,6 @@ ofproto_port_unregister(struct ofproto *ofproto, ofp_port_t ofp_port)
 {
     struct ofport *port = ofproto_get_port(ofproto, ofp_port);
     if (port) {
-        if (port->ofproto->ofproto_class->set_realdev) {
-            port->ofproto->ofproto_class->set_realdev(port, 0, 0);
-        }
         if (port->ofproto->ofproto_class->set_stp_port) {
             port->ofproto->ofproto_class->set_stp_port(port, NULL);
         }
@@ -2673,6 +2734,12 @@ init_ports(struct ofproto *p)
     return 0;
 }
 
+static inline bool
+ofport_is_internal(const struct ofport *port)
+{
+    return !strcmp(netdev_get_type(port->netdev), "internal");
+}
+
 /* Find the minimum MTU of all non-datapath devices attached to 'p'.
  * Returns ETH_PAYLOAD_MAX or the minimum of the ports. */
 static int
@@ -2687,7 +2754,7 @@ find_min_mtu(struct ofproto *p)
 
         /* Skip any internal ports, since that's what we're trying to
          * set. */
-        if (!strcmp(netdev_get_type(netdev), "internal")) {
+        if (ofport_is_internal(ofport)) {
             continue;
         }
 
@@ -2707,15 +2774,14 @@ find_min_mtu(struct ofproto *p)
 static void
 update_mtu(struct ofproto *p, struct ofport *port)
 {
-    struct ofport *ofport;
     struct netdev *netdev = port->netdev;
-    int dev_mtu, old_min;
+    int dev_mtu;
 
     if (netdev_get_mtu(netdev, &dev_mtu)) {
         port->mtu = 0;
         return;
     }
-    if (!strcmp(netdev_get_type(port->netdev), "internal")) {
+    if (ofport_is_internal(port)) {
         if (dev_mtu > p->min_mtu) {
            if (!netdev_set_mtu(port->netdev, p->min_mtu)) {
                dev_mtu = p->min_mtu;
@@ -2725,9 +2791,18 @@ update_mtu(struct ofproto *p, struct ofport *port)
         return;
     }
 
-    /* For non-internal port find new min mtu. */
-    old_min = p->min_mtu;
     port->mtu = dev_mtu;
+    /* For non-internal port find new min mtu. */
+    update_mtu_ofproto(p);
+}
+
+static void
+update_mtu_ofproto(struct ofproto *p)
+{
+    /* For non-internal port find new min mtu. */
+    struct ofport *ofport;
+    int old_min = p->min_mtu;
+
     p->min_mtu = find_min_mtu(p);
     if (p->min_mtu == old_min) {
         return;
@@ -2736,7 +2811,7 @@ update_mtu(struct ofproto *p, struct ofport *port)
     HMAP_FOR_EACH (ofport, hmap_node, &p->ports) {
         struct netdev *netdev = ofport->netdev;
 
-        if (!strcmp(netdev_get_type(netdev), "internal")) {
+        if (ofport_is_internal(ofport)) {
             if (!netdev_set_mtu(netdev, p->min_mtu)) {
                 ofport->mtu = p->min_mtu;
             }
@@ -2810,7 +2885,9 @@ remove_rule_rcu__(struct rule *rule)
     if (!classifier_remove(&table->cls, &rule->cr)) {
         OVS_NOT_REACHED();
     }
-    ofproto->ofproto_class->rule_delete(rule);
+    if (ofproto->ofproto_class->rule_delete) {
+        ofproto->ofproto_class->rule_delete(rule);
+    }
     ofproto_rule_unref(rule);
 }
 
@@ -4715,19 +4792,6 @@ add_flow_finish(struct ofproto *ofproto, struct ofproto_flow_mod *ofm,
     if (old_rule) {
         ovsrcu_postpone(remove_rule_rcu, old_rule);
     } else {
-        if (minimask_get_vid_mask(new_rule->cr.match.mask) == VLAN_VID_MASK) {
-            if (ofproto->vlan_bitmap) {
-                uint16_t vid = miniflow_get_vid(new_rule->cr.match.flow);
-
-                if (!bitmap_is_set(ofproto->vlan_bitmap, vid)) {
-                    bitmap_set1(ofproto->vlan_bitmap, vid);
-                    ofproto->vlans_changed = true;
-                }
-            } else {
-                ofproto->vlans_changed = true;
-            }
-        }
-
         ofmonitor_report(ofproto->connmgr, new_rule, NXFME_ADDED, 0,
                          req ? req->ofconn : NULL,
                          req ? req->request->xid : 0, NULL);
@@ -6632,6 +6696,27 @@ out:
     return error;
 }
 
+/* Implements the OFPGC11_ADD_OR_MOD command which creates the group when it does not
+ * exist yet and modifies it otherwise */
+static enum ofperr
+add_or_modify_group(struct ofproto *ofproto, const struct ofputil_group_mod *gm)
+{
+    struct ofgroup *ofgroup;
+    enum ofperr error;
+    bool exists;
+
+    ovs_rwlock_rdlock(&ofproto->groups_rwlock);
+    exists = ofproto_group_lookup__(ofproto, gm->group_id, &ofgroup);
+    ovs_rwlock_unlock(&ofproto->groups_rwlock);
+
+    if (!exists) {
+        error = add_group(ofproto, gm);
+    } else {
+        error = modify_group(ofproto, gm);
+    }
+    return error;
+}
+
 static void
 delete_group__(struct ofproto *ofproto, struct ofgroup *ofgroup)
     OVS_RELEASES(ofproto->groups_rwlock)
@@ -6721,6 +6806,10 @@ handle_group_mod(struct ofconn *ofconn, const struct ofp_header *oh)
         error = modify_group(ofproto, &gm);
         break;
 
+    case OFPGC11_ADD_OR_MOD:
+        error = add_or_modify_group(ofproto, &gm);
+        break;
+
     case OFPGC11_DELETE:
         delete_group(ofproto, gm.group_id);
         error = 0;
@@ -7354,6 +7443,12 @@ handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg)
     case OFPTYPE_NXT_TLV_TABLE_REQUEST:
         return handle_tlv_table_request(ofconn, oh);
 
+    case OFPTYPE_IPFIX_BRIDGE_STATS_REQUEST:
+        return handle_ipfix_bridge_stats_request(ofconn, oh);
+
+    case OFPTYPE_IPFIX_FLOW_STATS_REQUEST:
+        return handle_ipfix_flow_stats_request(ofconn, oh);
+
     case OFPTYPE_HELLO:
     case OFPTYPE_ERROR:
     case OFPTYPE_FEATURES_REPLY:
@@ -7387,6 +7482,8 @@ handle_openflow__(struct ofconn *ofconn, const struct ofpbuf *msg)
     case OFPTYPE_REQUESTFORWARD:
     case OFPTYPE_TABLE_STATUS:
     case OFPTYPE_NXT_TLV_TABLE_REPLY:
+    case OFPTYPE_IPFIX_BRIDGE_STATS_REPLY:
+    case OFPTYPE_IPFIX_FLOW_STATS_REPLY:
     default:
         if (ofpmsg_is_stat_request(oh)) {
             return OFPERR_OFPBRC_BAD_STAT;
@@ -7921,92 +8018,3 @@ ofproto_unixctl_init(void)
     unixctl_command_register("ofproto/list", "", 0, 0,
                              ofproto_unixctl_list, NULL);
 }
-\f
-/* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
- *
- * This is deprecated.  It is only for compatibility with broken device drivers
- * in old versions of Linux that do not properly support VLANs when VLAN
- * devices are not used.  When broken device drivers are no longer in
- * widespread use, we will delete these interfaces. */
-
-/* Sets a 1-bit in the 4096-bit 'vlan_bitmap' for each VLAN ID that is matched
- * (exactly) by an OpenFlow rule in 'ofproto'. */
-void
-ofproto_get_vlan_usage(struct ofproto *ofproto, unsigned long int *vlan_bitmap)
-{
-    struct match match;
-    struct cls_rule target;
-    const struct oftable *oftable;
-
-    match_init_catchall(&match);
-    match_set_vlan_vid_masked(&match, htons(VLAN_CFI), htons(VLAN_CFI));
-    cls_rule_init(&target, &match, 0);
-
-    free(ofproto->vlan_bitmap);
-    ofproto->vlan_bitmap = bitmap_allocate(4096);
-    ofproto->vlans_changed = false;
-
-    OFPROTO_FOR_EACH_TABLE (oftable, ofproto) {
-        struct rule *rule;
-
-        CLS_FOR_EACH_TARGET (rule, cr, &oftable->cls, &target,
-                             CLS_MAX_VERSION) {
-            if (minimask_get_vid_mask(rule->cr.match.mask) == VLAN_VID_MASK) {
-                uint16_t vid = miniflow_get_vid(rule->cr.match.flow);
-
-                bitmap_set1(vlan_bitmap, vid);
-                bitmap_set1(ofproto->vlan_bitmap, vid);
-            }
-        }
-    }
-
-    cls_rule_destroy(&target);
-}
-
-/* Returns true if new VLANs have come into use by the flow table since the
- * last call to ofproto_get_vlan_usage().
- *
- * We don't track when old VLANs stop being used. */
-bool
-ofproto_has_vlan_usage_changed(const struct ofproto *ofproto)
-{
-    return ofproto->vlans_changed;
-}
-
-/* Configures a VLAN splinter binding between the ports identified by OpenFlow
- * port numbers 'vlandev_ofp_port' and 'realdev_ofp_port'.  If
- * 'realdev_ofp_port' is nonzero, then the VLAN device is enslaved to the real
- * device as a VLAN splinter for VLAN ID 'vid'.  If 'realdev_ofp_port' is zero,
- * then the VLAN device is un-enslaved. */
-int
-ofproto_port_set_realdev(struct ofproto *ofproto, ofp_port_t vlandev_ofp_port,
-                         ofp_port_t realdev_ofp_port, int vid)
-{
-    struct ofport *ofport;
-    int error;
-
-    ovs_assert(vlandev_ofp_port != realdev_ofp_port);
-
-    ofport = ofproto_get_port(ofproto, vlandev_ofp_port);
-    if (!ofport) {
-        VLOG_WARN("%s: cannot set realdev on nonexistent port %"PRIu16,
-                  ofproto->name, vlandev_ofp_port);
-        return EINVAL;
-    }
-
-    if (!ofproto->ofproto_class->set_realdev) {
-        if (!vlandev_ofp_port) {
-            return 0;
-        }
-        VLOG_WARN("%s: vlan splinters not supported", ofproto->name);
-        return EOPNOTSUPP;
-    }
-
-    error = ofproto->ofproto_class->set_realdev(ofport, realdev_ofp_port, vid);
-    if (error) {
-        VLOG_WARN("%s: setting realdev on port %"PRIu16" (%s) failed (%s)",
-                  ofproto->name, vlandev_ofp_port,
-                  netdev_get_name(ofport->netdev), ovs_strerror(error));
-    }
-    return error;
-}