gre: Correctly account for hardware header length.
[sliver-openvswitch.git] / vswitchd / bridge.c
index a09f343..6440bb9 100644 (file)
@@ -61,6 +61,7 @@
 #include "vswitchd/vswitch-idl.h"
 #include "xenserver.h"
 #include "xtoxll.h"
+#include "sflow_api.h"
 
 #define THIS_MODULE VLM_bridge
 #include "vlog.h"
@@ -162,6 +163,13 @@ struct bridge {
     /* OpenFlow switch processing. */
     struct ofproto *ofproto;    /* OpenFlow switch. */
 
+    /* Description strings. */
+    char *mfr_desc;             /* Manufacturer. */
+    char *hw_desc;              /* Hardware. */
+    char *sw_desc;              /* Software version. */
+    char *serial_desc;          /* Serial number. */
+    char *dp_desc;              /* Datapath description. */
+
     /* Kernel datapath information. */
     struct dpif *dpif;          /* Datapath. */
     struct port_array ifaces;   /* Indexed by kernel datapath port number. */
@@ -193,11 +201,14 @@ static struct list all_bridges = LIST_INITIALIZER(&all_bridges);
 /* Maximum number of datapaths. */
 enum { DP_MAX = 256 };
 
-static struct bridge *bridge_create(const char *name);
+static struct bridge *bridge_create(const struct ovsrec_bridge *br_cfg);
 static void bridge_destroy(struct bridge *);
 static struct bridge *bridge_lookup(const char *name);
 static unixctl_cb_func bridge_unixctl_dump_flows;
 static int bridge_run_one(struct bridge *);
+static const struct ovsrec_controller *bridge_get_controller(
+                      const struct ovsrec_open_vswitch *ovs_cfg,
+                      const struct bridge *br);
 static void bridge_reconfigure_one(const struct ovsrec_open_vswitch *,
                                    struct bridge *);
 static void bridge_reconfigure_controller(const struct ovsrec_open_vswitch *,
@@ -285,7 +296,7 @@ void
 bridge_init(const struct ovsrec_open_vswitch *cfg)
 {
     struct svec bridge_names;
-    struct svec dpif_names;
+    struct svec dpif_names, dpif_types;
     size_t i;
 
     unixctl_command_register("fdb/show", bridge_unixctl_fdb_show, NULL);
@@ -297,31 +308,37 @@ bridge_init(const struct ovsrec_open_vswitch *cfg)
     svec_sort(&bridge_names);
 
     svec_init(&dpif_names);
-    dp_enumerate(&dpif_names);
-    for (i = 0; i < dpif_names.n; i++) {
-        const char *dpif_name = dpif_names.names[i];
+    svec_init(&dpif_types);
+    dp_enumerate_types(&dpif_types);
+    for (i = 0; i < dpif_types.n; i++) {
         struct dpif *dpif;
         int retval;
+        size_t j;
 
-        retval = dpif_open(dpif_name, &dpif);
-        if (!retval) {
-            struct svec all_names;
-            size_t j;
+        dp_enumerate_names(dpif_types.names[i], &dpif_names);
 
-            svec_init(&all_names);
-            dpif_get_all_names(dpif, &all_names);
-            for (j = 0; j < all_names.n; j++) {
-                if (svec_contains(&bridge_names, all_names.names[j])) {
-                    goto found;
+        for (j = 0; j < dpif_names.n; j++) {
+            retval = dpif_open(dpif_names.names[j], dpif_types.names[i], &dpif);
+            if (!retval) {
+                struct svec all_names;
+                size_t k;
+
+                svec_init(&all_names);
+                dpif_get_all_names(dpif, &all_names);
+                for (k = 0; k < all_names.n; k++) {
+                    if (svec_contains(&bridge_names, all_names.names[k])) {
+                        goto found;
+                    }
                 }
+                dpif_delete(dpif);
+            found:
+                svec_destroy(&all_names);
+                dpif_close(dpif);
             }
-            dpif_delete(dpif);
-        found:
-            svec_destroy(&all_names);
-            dpif_close(dpif);
         }
     }
     svec_destroy(&dpif_names);
+    svec_destroy(&dpif_types);
 
     unixctl_command_register("bridge/dump-flows", bridge_unixctl_dump_flows,
                              NULL);
@@ -400,7 +417,12 @@ set_up_iface(const struct ovsrec_interface *iface_cfg, struct iface *iface,
 
         memset(&netdev_options, 0, sizeof netdev_options);
         netdev_options.name = iface_cfg->name;
-        netdev_options.type = iface_cfg->type;
+        if (!strcmp(iface_cfg->type, "internal")) {
+            /* An "internal" config type maps to a netdev "system" type. */
+            netdev_options.type = "system";
+        } else {
+            netdev_options.type = iface_cfg->type;
+        }
         netdev_options.args = &options;
         netdev_options.ethertype = NETDEV_ETH_TYPE_NONE;
         netdev_options.may_create = true;
@@ -418,6 +440,11 @@ set_up_iface(const struct ovsrec_interface *iface_cfg, struct iface *iface,
         const char *iface_type = iface_cfg->type && strlen(iface_cfg->type)
                                   ? iface_cfg->type : NULL;
 
+        /* An "internal" config type maps to a netdev "system" type. */
+        if (iface_type && !strcmp(iface_type, "internal")) {
+            iface_type = "system";
+        }
+
         if (!iface_type || !strcmp(netdev_type, iface_type)) {
             error = netdev_reconfigure(iface->netdev, &options);
         } else {
@@ -442,8 +469,8 @@ reconfigure_iface(const struct ovsrec_interface *iface_cfg, struct iface *iface)
 }
 
 static bool
-check_iface_netdev(struct bridge *br UNUSED, struct iface *iface,
-                   void *aux UNUSED)
+check_iface_netdev(struct bridge *br OVS_UNUSED, struct iface *iface,
+                   void *aux OVS_UNUSED)
 {
     if (!iface->netdev) {
         int error = set_up_iface(iface->cfg, iface, true);
@@ -458,7 +485,8 @@ check_iface_netdev(struct bridge *br UNUSED, struct iface *iface,
 }
 
 static bool
-check_iface_dp_ifidx(struct bridge *br, struct iface *iface, void *aux UNUSED)
+check_iface_dp_ifidx(struct bridge *br, struct iface *iface,
+                     void *aux OVS_UNUSED)
 {
     if (iface->dp_ifidx >= 0) {
         VLOG_DBG("%s has interface %s on port %d",
@@ -473,8 +501,8 @@ check_iface_dp_ifidx(struct bridge *br, struct iface *iface, void *aux UNUSED)
 }
 
 static bool
-set_iface_properties(struct bridge *br UNUSED, struct iface *iface,
-                   void *aux UNUSED)
+set_iface_properties(struct bridge *br OVS_UNUSED, struct iface *iface,
+                     void *aux OVS_UNUSED)
 {
     /* Set policing attributes. */
     netdev_set_policing(iface->netdev,
@@ -530,6 +558,7 @@ bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
     struct shash_node *node;
     struct bridge *br, *next;
     size_t i;
+    int sflow_bridge_number;
 
     COVERAGE_INC(bridge_reconfigure);
 
@@ -560,11 +589,16 @@ bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
     SHASH_FOR_EACH (node, &new_br) {
         const char *br_name = node->name;
         const struct ovsrec_bridge *br_cfg = node->data;
-        if (!shash_find_data(&old_br, br_name)) {
-            br = bridge_create(br_name);
-            if (br) {
-                br->cfg = br_cfg;
+        br = shash_find_data(&old_br, br_name);
+        if (br) {
+            /* If the bridge datapath type has changed, we need to tear it
+             * down and recreate. */
+            if (strcmp(br->cfg->datapath_type, br_cfg->datapath_type)) {
+                bridge_destroy(br);
+                bridge_create(br_cfg);
             }
+        } else {
+            bridge_create(br_cfg);
         }
     }
     shash_destroy(&old_br);
@@ -658,6 +692,7 @@ bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
         shash_destroy(&cur_ifaces);
         shash_destroy(&want_ifaces);
     }
+    sflow_bridge_number = 0;
     LIST_FOR_EACH (br, struct bridge, node, &all_bridges) {
         uint8_t ea[8];
         uint64_t dpid;
@@ -699,10 +734,10 @@ bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
 
             dpif_get_netflow_ids(br->dpif, &opts.engine_type, &opts.engine_id);
             if (nf_cfg->engine_type) {
-                opts.engine_type = nf_cfg->engine_type;
+                opts.engine_type = *nf_cfg->engine_type;
             }
             if (nf_cfg->engine_id) {
-                opts.engine_id = nf_cfg->engine_id;
+                opts.engine_id = *nf_cfg->engine_id;
             }
 
             opts.active_timeout = nf_cfg->active_timeout;
@@ -739,6 +774,44 @@ bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
             ofproto_set_netflow(br->ofproto, NULL);
         }
 
+        /* Set sFlow configuration on this bridge. */
+        if (br->cfg->sflow) {
+            const struct ovsrec_sflow *sflow_cfg = br->cfg->sflow;
+            const struct ovsrec_controller *ctrl;
+            struct ofproto_sflow_options oso;
+
+            memset(&oso, 0, sizeof oso);
+
+            oso.targets.n = sflow_cfg->n_targets;
+            oso.targets.names = sflow_cfg->targets;
+
+            oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
+            if (sflow_cfg->sampling) {
+                oso.sampling_rate = *sflow_cfg->sampling;
+            }
+
+            oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
+            if (sflow_cfg->polling) {
+                oso.polling_interval = *sflow_cfg->polling;
+            }
+
+            oso.header_len = SFL_DEFAULT_HEADER_SIZE;
+            if (sflow_cfg->header) {
+                oso.header_len = *sflow_cfg->header;
+            }
+
+            oso.sub_id = sflow_bridge_number++;
+            oso.agent_device = sflow_cfg->agent;
+
+            ctrl = bridge_get_controller(ovs_cfg, br);
+            oso.control_ip = ctrl ? ctrl->local_ip : NULL;
+            ofproto_set_sflow(br->ofproto, &oso);
+
+            svec_destroy(&oso.targets);
+        } else {
+            ofproto_set_sflow(br->ofproto, NULL);
+        }
+
         /* Update the controller and related settings.  It would be more
          * straightforward to call this from bridge_reconfigure_one(), but we
          * can't do it there for two reasons.  First, and most importantly, at
@@ -1044,7 +1117,7 @@ bridge_get_local_iface(struct bridge *br)
 /* Bridge unixctl user interface functions. */
 static void
 bridge_unixctl_fdb_show(struct unixctl_conn *conn,
-                        const char *args, void *aux UNUSED)
+                        const char *args, void *aux OVS_UNUSED)
 {
     struct ds ds = DS_EMPTY_INITIALIZER;
     const struct bridge *br;
@@ -1071,34 +1144,38 @@ bridge_unixctl_fdb_show(struct unixctl_conn *conn,
 \f
 /* Bridge reconfiguration functions. */
 static struct bridge *
-bridge_create(const char *name)
+bridge_create(const struct ovsrec_bridge *br_cfg)
 {
     struct bridge *br;
     int error;
 
-    assert(!bridge_lookup(name));
+    assert(!bridge_lookup(br_cfg->name));
     br = xzalloc(sizeof *br);
 
-    error = dpif_create_and_open(name, &br->dpif);
+    error = dpif_create_and_open(br_cfg->name, br_cfg->datapath_type,
+                                 &br->dpif);
     if (error) {
         free(br);
         return NULL;
     }
     dpif_flow_flush(br->dpif);
 
-    error = ofproto_create(name, &bridge_ofhooks, br, &br->ofproto);
+    error = ofproto_create(br_cfg->name, br_cfg->datapath_type, &bridge_ofhooks,
+                           br, &br->ofproto);
     if (error) {
-        VLOG_ERR("failed to create switch %s: %s", name, strerror(error));
+        VLOG_ERR("failed to create switch %s: %s", br_cfg->name,
+                 strerror(error));
         dpif_delete(br->dpif);
         dpif_close(br->dpif);
         free(br);
         return NULL;
     }
 
-    br->name = xstrdup(name);
+    br->name = xstrdup(br_cfg->name);
+    br->cfg = br_cfg;
     br->ml = mac_learning_create();
     br->sent_config_request = false;
-    eth_addr_random(br->default_ea);
+    eth_addr_nicira_random(br->default_ea);
 
     port_array_init(&br->ifaces);
 
@@ -1168,7 +1245,7 @@ bridge_get_datapathid(const char *name)
  * stack, including those normally hidden. */
 static void
 bridge_unixctl_dump_flows(struct unixctl_conn *conn,
-                          const char *args, void *aux UNUSED)
+                          const char *args, void *aux OVS_UNUSED)
 {
     struct bridge *br;
     struct ds results;
@@ -1238,6 +1315,75 @@ check_duplicate_ifaces(struct bridge *br, struct iface *iface, void *ifaces_)
     }
 }
 
+static void
+bridge_update_desc(struct bridge *br)
+{
+#if 0
+    bool changed = false;
+    const char *desc;
+
+    desc = cfg_get_string(0, "bridge.%s.mfr-desc", br->name);
+    if (desc != br->mfr_desc) {
+        free(br->mfr_desc);
+        if (desc) {
+            br->mfr_desc = xstrdup(desc);
+        } else {
+            br->mfr_desc = xstrdup(DEFAULT_MFR_DESC);
+        }
+        changed = true;
+    }
+
+    desc = cfg_get_string(0, "bridge.%s.hw-desc", br->name);
+    if (desc != br->hw_desc) {
+        free(br->hw_desc);
+        if (desc) {
+            br->hw_desc = xstrdup(desc);
+        } else {
+            br->hw_desc = xstrdup(DEFAULT_HW_DESC);
+        }
+        changed = true;
+    }
+
+    desc = cfg_get_string(0, "bridge.%s.sw-desc", br->name);
+    if (desc != br->sw_desc) {
+        free(br->sw_desc);
+        if (desc) {
+            br->sw_desc = xstrdup(desc);
+        } else {
+            br->sw_desc = xstrdup(DEFAULT_SW_DESC);
+        }
+        changed = true;
+    }
+
+    desc = cfg_get_string(0, "bridge.%s.serial-desc", br->name);
+    if (desc != br->serial_desc) {
+        free(br->serial_desc);
+        if (desc) {
+            br->serial_desc = xstrdup(desc);
+        } else {
+            br->serial_desc = xstrdup(DEFAULT_SERIAL_DESC);
+        }
+        changed = true;
+    }
+
+    desc = cfg_get_string(0, "bridge.%s.dp-desc", br->name);
+    if (desc != br->dp_desc) {
+        free(br->dp_desc);
+        if (desc) {
+            br->dp_desc = xstrdup(desc);
+        } else {
+            br->dp_desc = xstrdup(DEFAULT_DP_DESC);
+        }
+        changed = true;
+    }
+
+    if (changed) {
+        ofproto_set_desc(br->ofproto, br->mfr_desc, br->hw_desc,
+                br->sw_desc, br->serial_desc, br->dp_desc);
+    }
+#endif
+}
+
 static void
 bridge_reconfigure_one(const struct ovsrec_open_vswitch *ovs_cfg,
                        struct bridge *br)
@@ -1247,7 +1393,6 @@ bridge_reconfigure_one(const struct ovsrec_open_vswitch *ovs_cfg,
     struct svec listeners, old_listeners;
     struct svec snoops, old_snoops;
     struct shash_node *node;
-    uint64_t mgmt_id;
     size_t i;
 
     /* Collect old ports. */
@@ -1283,9 +1428,6 @@ bridge_reconfigure_one(const struct ovsrec_open_vswitch *ovs_cfg,
         }
     }
 
-    dpid_from_string(ovs_cfg->management_id, &mgmt_id);
-    ofproto_set_mgmt_id(br->ofproto, mgmt_id);
-
     /* Get rid of deleted ports and add new ports. */
     SHASH_FOR_EACH (node, &old_ports) {
         if (!shash_find(&new_ports, node->name)) {
@@ -1380,6 +1522,8 @@ bridge_reconfigure_one(const struct ovsrec_open_vswitch *ovs_cfg,
 #endif
 
     mirror_reconfigure(br);
+
+    bridge_update_desc(br);
 }
 
 static void
@@ -1417,7 +1561,7 @@ bridge_reconfigure_controller(const struct ovsrec_open_vswitch *ovs_cfg,
             local_iface = bridge_get_local_iface(br);
             if (local_iface && c->local_ip && inet_aton(c->local_ip, &ip)) {
                 struct netdev *netdev = local_iface->netdev;
-                struct in_addr ip, mask, gateway;
+                struct in_addr mask, gateway;
 
                 if (!c->local_netmask || !inet_aton(c->local_netmask, &mask)) {
                     mask.s_addr = 0;
@@ -1939,7 +2083,7 @@ compose_dsts(const struct bridge *br, const flow_t *flow, uint16_t vlan,
     return dst - dsts;
 }
 
-static void UNUSED
+static void OVS_UNUSED
 print_dsts(const struct dst *dsts, size_t n)
 {
     for (; n--; dsts++) {
@@ -2654,7 +2798,7 @@ bond_send_learning_packets(struct port *port)
 
 static void
 bond_unixctl_list(struct unixctl_conn *conn,
-                  const char *args UNUSED, void *aux UNUSED)
+                  const char *args OVS_UNUSED, void *aux OVS_UNUSED)
 {
     struct ds ds = DS_EMPTY_INITIALIZER;
     const struct bridge *br;
@@ -2705,7 +2849,7 @@ bond_find(const char *name)
 
 static void
 bond_unixctl_show(struct unixctl_conn *conn,
-                  const char *args, void *aux UNUSED)
+                  const char *args, void *aux OVS_UNUSED)
 {
     struct ds ds = DS_EMPTY_INITIALIZER;
     const struct port *port;
@@ -2771,7 +2915,7 @@ bond_unixctl_show(struct unixctl_conn *conn,
 
 static void
 bond_unixctl_migrate(struct unixctl_conn *conn, const char *args_,
-                     void *aux UNUSED)
+                     void *aux OVS_UNUSED)
 {
     char *args = (char *) args_;
     char *save_ptr = NULL;
@@ -2828,7 +2972,7 @@ bond_unixctl_migrate(struct unixctl_conn *conn, const char *args_,
 
 static void
 bond_unixctl_set_active_slave(struct unixctl_conn *conn, const char *args_,
-                              void *aux UNUSED)
+                              void *aux OVS_UNUSED)
 {
     char *args = (char *) args_;
     char *save_ptr = NULL;
@@ -2909,21 +3053,21 @@ enable_slave(struct unixctl_conn *conn, const char *args_, bool enable)
 
 static void
 bond_unixctl_enable_slave(struct unixctl_conn *conn, const char *args,
-                          void *aux UNUSED)
+                          void *aux OVS_UNUSED)
 {
     enable_slave(conn, args, true);
 }
 
 static void
 bond_unixctl_disable_slave(struct unixctl_conn *conn, const char *args,
-                           void *aux UNUSED)
+                           void *aux OVS_UNUSED)
 {
     enable_slave(conn, args, false);
 }
 
 static void
 bond_unixctl_hash(struct unixctl_conn *conn, const char *args,
-                  void *aux UNUSED)
+                  void *aux OVS_UNUSED)
 {
        uint8_t mac[ETH_ADDR_LEN];
        uint8_t hash;
@@ -3028,7 +3172,7 @@ port_reconfigure(struct port *port, const struct ovsrec_port *cfg)
 
         iface = shash_find_data(&old_ifaces, if_cfg->name);
         if (!iface) {
-            iface = iface_create(port, if_cfg);
+            iface_create(port, if_cfg);
         } else {
             iface->cfg = if_cfg;
         }
@@ -3625,7 +3769,7 @@ mirror_collect_vlans(struct mirror *m, const struct ovsrec_mirror *cfg,
     size_t n_vlans;
     size_t i;
 
-    *vlans = xmalloc(sizeof *vlans * cfg->n_select_vlan);
+    *vlans = xmalloc(sizeof **vlans * cfg->n_select_vlan);
     n_vlans = 0;
     for (i = 0; i < cfg->n_select_vlan; i++) {
         int64_t vlan = cfg->select_vlan[i];